Author: "Gordon, Karl" - Searchworks@Jio Institute Digital Library Search Results

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1,264 results on '"Gordon, Karl"'

151. Discovery of Five New R Coronae Borealis Stars in the MACHO Galactic Bulge Database

Author: Zaniewski, A., Clayton, Geoffrey C., Welch, D. L., Gordon, Karl D., Minniti, D., and Cook, K. H.
Subjects: Astrophysics
Abstract: We have identified five new R Coronae Borealis (RCB) stars in the Galactic bulge using the MACHO Project photometry database, raising the total number of known Galactic RCB stars to about 40. We have obtained spectra to confirm the identifications. The fact that four out of the five newly identified RCB stars are ``cool'' (T(eff) < 6000 K) rather than ``warm'' (T(eff) > 6000 K) suggests that the preponderance of warm RCB stars among the existing sample is a selection bias. These cool RCB stars are redder and fainter than their warm counterparts and may have been missed in surveys done with blue plates. Based on the number of new RCB stars discovered in the MACHO bulge fields, there may be ~250 RCB stars in the reddened "exclusion" zone toward the bulge., Comment: 16 pages, 5 figures, AJ in press High resolution versions of Figures 1 and 2 can be downloaded from http://morpheus.phys.lsu.edu/~gclayton/figs.pdf (more typos corrected)
Published: 2005
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152. Blue Luminescence and the Presence of Small PAHs in the ISM

Author: Vijh, Uma P., Witt, Adolf N., and Gordon, Karl D.
Subjects: Astrophysics
Abstract: Blue Luminescence (BL) was first discovered in a proto-planetary nebula, the Red Rectangle (RR) surrounding the post-AGB star HD 44179. BL has been attributed to fluorescence by small, 3-4 ringed neutral polycyclic aromatic hydrocarbon (PAH) molecules, and was thought to be unique to the RR environment where such small molecules are actively being produced and shielded from the harsh interstellar radiation by a dense circumstellar disk. In this paper we present the BL spectrum detected in several ordinary reflection nebulae illuminated by stars having temperatures between 10,000 -- 23,000 K. All these nebulae are known to also exhibit the infrared emission features called aromatic emission features (AEFs) attributed to large PAHs. We present the spatial distribution of the BL in these nebulae. In the case of Ced~112, the BL is spatially correlated with mid-IR emission structures attributed to AEFs. These observations provide evidence for grain processing and possibly for in-situ formation of small grains and large molecules from larger aggregates. Most importantly, the detection of BL in these ordinary reflection nebulae suggests that the BL carrier is an ubiquitous component of the ISM and is not restricted to the particular environment of the RR., Comment: 10 pages, 16 figures, To appear in the ApJ, vol. 633, issue 1
Published: 2005
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153. Formation and Evolution of Planetary Systems: Cold Outer Disks Associated with Sun-like stars

Author: Kim, Jinyoung Serena, Hines, Dean C., Backman, Dana E., Hillenbrand, Lynne A., Meyer, Michael R., Rodmann, Jens, Moro-Martin, Amaya, Carpenter, John M., Silverstone, Murray D., Bouwman, Jeroen, Mamajek, Eric E., Wolf, Sebastian, Malhotra, Renu, Pascucci, Ilaria, Najita, Joan, Padgett, Deborah L., Henning, Thomas, Brooke, Timothy Y., Cohen, Martin, Strom, Stephen E., Stobie, Elizabeth B., Engelbracht, Charles W., Gordon, Karl D., Misselt, Karl, Morrison, Jane E., Muzerolle, James, and Su, Kate Y. L.
Subjects: Astrophysics
Abstract: We present the discovery of debris systems around three solar mass stars based upon observations performed with the Spitzer Space Telescope as part of a Legacy Science Program, ``the Formation and Evolution of Planetary Systems'' (FEPS). We also confirm the presence of debris around two other stars. All the stars exhibit infrared emission in excess of the expected photospheres in the 70 micron band, but are consistent with photospheric emission at <= 33 micron. This restricts the maximum temperature of debris in equilibrium with the stellar radiation to T < 70 K. We find that these sources are relatively old in the FEPS sample, in the age range 0.7 - 3 Gyr. Based on models of the spectral energy distributions, we suggest that these debris systems represent materials generated by collisions of planetesimal belts. We speculate on the nature of these systems through comparisons to our own Kuiper Belt, and on the likely planet(s) responsible for stirring the system and ultimately releasing dust through collisions. We further report observations of a nearby star HD 13974 (d =11 pc) that is indistinguishable from a bare photosphere at both 24 micron and 70 micron. The observations place strong upper limits on the presence of any cold dust in this nearby system (L_IR/L_* < 10^{-5.2})., Comment: 31 pages, 9 figures, accepted for publication in ApJ
Published: 2005
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154. FUSE Measurements of Far Ultraviolet Extinction. II. Magellanic Cloud Sight Lines

Author: Cartledge, Stefan I. B., Clayton, Geoffrey C., Gordon, Karl D., Rachford, Brian L., Draine, B. T., Martin, P. G., Mathis, John S., Misselt, K. A., Sofia, Ulysses J., Whittet, D. C. B., and Wolff, Michael J.
Subjects: Astrophysics
Abstract: We present an extinction analysis of 9 paths through the LMC and SMC based on FUSE observations. To date, just two LMC sight lines have probed dust grain composition and size distributions in the Clouds using spectra including wavelengths as short as 950 A. We supplement these with results from 4 regions distinguished by their IR through UV extinction curves and grouped as LMCAvg, LMC2, SMC bar and SMC wing. Despite the distinct characters of Milky Way and Magellanic Cloud extinction, our results are generally analogous to those found for Galactic curves in that the FUSE portions of each extinction curve are described reasonably well by FM curves fitted only to longer wavelength data and lack any dramatic new extinction features, and any deviations from the CCM formalism continue into FUV wavelengths. An MEM analysis of these curves suggests that LMCAvg and SMC wing sight lines require more silicon and/or carbon in dust than current abundance measurements would allow, while the requirements for LMC2 and SMC bar sight lines do not fully tax the available reservoirs. An intermediate product of this analysis is the measurement of new H_2 abundances in the Magellanic Clouds. Collectively considering Cloud sight lines that possess significant H_2 column densities, E(B-V)/N(HI) ratios are reduced by significant factors relative to the Galactic mean, whereas the corresponding E(B-V)/N(H_2) values more closely resemble their Galactic counterpart. These trends reflect the fact that among these sight lines f(H_2)-values are lower than those common in the Milky Way for paths with similar degrees of reddening., Comment: 40 pages, 8 figures, accepted for publication in ApJ
Published: 2005
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155. Detection of Near-IR CO Absorption Bands in R Coronae Borealis Stars

Author: Tenenbaum, Emily D., Clayton, Geoffrey C., Asplund, Martin, Engelbracht, C. W., Gordon, Karl D., Hanson, M. M., Rudy, Richard J., Lynch, David K., Mazuk, S., Venturini, Catherine C., and Puetter, R. C.
Subjects: Astrophysics
Abstract: R Coronae Borealis (RCB) stars are hydrogen-deficient, carbon-rich pulsating post-AGB stars that experience massive irregular declines in brightness caused by circumstellar dust formation. The mechanism of dust formation around RCB stars is not well understood. It has been proposed that CO molecules play an important role in cooling the circumstellar gas so that dust may form. We report on a survey for CO in a sample of RCB stars. We obtained H- and K-band spectra including the first and second overtone CO bands for eight RCB stars, the RCB-like star, DY Per and the final-helium-flash star, FG Sge. The first and second overtone CO bands were detected in the cooler (T(eff)<6000 K) RCB stars, Z Umi, ES Aql, SV Sge and DY Per. The bands are not present in the warmer (T(eff)>6000 K) RCB stars, R CrB, RY Sgr, SU Tau, XX Cam. In addition, first overtone bands are seen in FG Sge, a final-helium-flash star that is in an RCB-like phase at present. Effective temperatures of the eight RCB stars range from 4000 to 7250 K. The observed photospheric CO absorption bands were compared to line-blanketed model spectra of RCB stars. As predicted by the models, the CO bands are strongest in the coolest RCB stars and not present in the warmest. No correlation was found between the presence or strength of the CO bands and dust formation activity in the stars., Comment: 13 oages, 3 figures, AJ in press
Published: 2005
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156. An Extremely Large Excess of 18O in the Hydrogen-Deficient Carbon Star, HD 137613

Author: Clayton, Geoffrey C., Herwig, Falk, Geballe, T. R., Asplund, Martin, Tenenbaum, Emily D., Engelbracht, C. W., and Gordon, Karl D.
Subjects: Astrophysics
Abstract: We report the discovery of a uniquely large excess of 18O in the hydrogen-deficient carbon (HdC) star, HD 137613, based on a spectrum of the first overtone bands of CO at 2.3-2.4 micron in which three strong absorption bands of 12C18O are clearly present. Bands of 12C16O also are present but no bands of 13C16O or 12C17O are seen. We estimate an isotopic ratio 16O/18O ~1. The Solar value of this ratio is ~500. Neither He-core burning nor He-shell flash burning can produce the isotopic ratios of oxygen and carbon observed in HD 137613. However, a remarkable similarity exists between the observed abundances and those found in the outer layers of the broad He-shell of early-AGB stars, soon after the end of He-core burning. It is not known how the outer envelope down to the He-shell could be lost but some mechanism of enhanced mass loss must be involved. HD 137613 may be a post-early-AGB star with the outer layers of the former He-burning shell as its photosphere. The unusual elemental abundances of the HdC stars resemble those of the R Coronae Borealis (RCB) stars, but HdC stars do not produce clouds of dust that produce declines in brightness. None of the other RCB or HdC stars observed shows significant 18O., Comment: 12 pages, 2 figures, ApJ Letters, in press
Published: 2005
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157. Measuring Extinction Curves of Lensing Galaxies

Author: McGough, Christina, Clayton, Geoffrey C., Gordon, Karl D., and Wolff, Michael J.
Subjects: Astrophysics
Abstract: We critique the method of constructing extinction curves of lensing galaxies using multiply imaged QSOs. If one of the two QSO images is lightly reddened or if the dust along both sightlines has the same properties then the method works well and produces an extinction curve for the lensing galaxy. These cases are likely rare and hard to confirm. However, if the dust along each sightline has different properties then the resulting curve is no longer a measurement of extinction. Instead, it is a measurement of the difference between two extinction curves. This "lens difference curve'' does contain information about the dust properties, but extracting a meaningful extinction curve is not possible without additional, currently unknown information. As a quantitative example, we show that the combination of two Cardelli, Clayton, & Mathis (CCM) type extinction curves having different values of R(V) will produce a CCM extinction curve with a value of R(V) which is dependent on the individual R(V) values and the ratio of V band extinctions. The resulting lens difference curve is not an average of the dust along the two sightlines. We find that lens difference curves with any value of R(V), even negative values, can be produced by a combination of two reddened sightlines with different CCM extinction curves with R(V) values consistent with Milky Way dust (2.1 < R(V) < 5.6). This may explain extreme values of R(V) inferred by this method in previous studies. But lens difference curves with more normal values of R(V) are just as likely to be composed of two dust extinction curves with R(V) values different than that of the lens difference curve. While it is not possible to determine the individual extinction curves making up a lens difference curve, there is information about a galaxy's dust contained in the lens difference curves., Comment: 15 pages, 4 figues, ApJ in press
Published: 2005
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158. Ultraviolet Dust Grain Properties in Starburst Galaxies: Evidence from Radiative Transfer Modeling and Local Group Extinction Curves

Author: Gordon, Karl D.
Subjects: Astrophysics
Abstract: This paper summarizes the evidence of the ultraviolet properties of dust grains found in starburst galaxies. Observations of starburst galaxies clearly show that the 2175 A feature is weak or absent. This can be the result of radiative transfer effects (mixing the dust and stars) or due to dust grains which do not have this feature. Spherical DIRTY radiative transfer models imply that it is not radiative transfer effects, but other radiative transfer models with disk/bulge geometries have found cases where it could be radiative transfer effects. Recent work on the extinction curves in the Magellanic Clouds and Milky Way has revealed that the traditional explanation of low metallicity for the absence of the 2175 A feature in the Small Magellanic Cloud is likely incorrect. The SMC has one sightline with a 2175 A feature and the Milky Way has sightlines without this feature. In addition, where the 2175 A feature is found to be weak or absent in both Magellanic Clouds and the Milky Way, there is evidence for recent star formation. Taking the sum of the radiative transfer modeling of starburst galaxies and the behavior of Local Group extinction curves, it is likely that the dust grains in starburst galaxies intrinsically lack the 2175 A feature., Comment: 7 pages, To appear in the proceedings of: "The Spectral Energy Distribution of Gas-Rich Galaxies: Confronting Models with Data", Heidelberg, 4-8 Oct. 2004, eds. C.C. Popescu and R.J. Tuffs, AIP Conf. Ser., in press [fixed typo in title]
Published: 2005
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159. Small PAHs in the Red Rectangle

Author: Vijh, Uma P., Witt, Adolf N., and Gordon, Karl D.
Subjects: Astrophysics
Abstract: Following our initial discovery of blue luminescence in the spectrum of the Red Rectangle (RR) and its identification as fluorescence by small three- to four-ringed polycyclic aromatic hydrocarbon (PAH) molecules, we report on the spatial correlation between the blue luminescence and the 3.3 micron emission, commonly attributed to small, neutral PAH molecules, and on the newly-derived UV/optical attenuation curve for the central source of the RR, HD 44179. Both results provide strong additional evidence for the presence of small PAH molecules with masses of less than 250 a.m.u. in the RR, which supports the attribution of the blue luminescence to fluorescence by the same molecules. We contrast the excellent spatial correlation of the two former emissions with the distinctly different spatial distribution of the extended red emission (ERE) and of the dust-scattered light within the RR. The UV/optical attenuation curve of the central star is unlike any interstellar extinction curve and is interpreted as resulting from circumstellar opacity alone. Major contributions to this opacity are absorptions in broad bands in the mid-UV, contributing to the electronic excitation of the luminescing PAH molecules, and a sharp ionization discontinuity near 7.5 eV in the far-UV, which places a sharp upper limit on the masses of the PAH molecules that are responsible for this absorption. The strength of the far-UV absorption leads to an abundance of the PAH molecules of 10^{-5} relative to hydrogen in the RR. Such small PAHs are perhaps unique to the environment in the RR, where they are shielded from harsh radiation by the dense circmstellar disk., Comment: 11 pages, 9 figures (LaTeX2e, uses emulateapj.sty), To appear in ApJ
Published: 2004
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160. Ultraviolet Extinction Properties in the Milky Way

Author: Valencic, Lynne A., Clayton, Geoffrey C., and Gordon, Karl D.
Subjects: Astrophysics
Abstract: We have assembled a homogeneous database of 417 ultraviolet (UV) extinction curves for reddened sightlines having International Ultraviolet Explorer (IUE) spectra. We have combined these with optical and 2MASS photometry allowing estimates of the ratio of total-to-selective extinction, R(V), for the entire sample. Fitzpatrick-Massa (FM) parameters have also been found for the entire sample. This is the largest study of parameterized UV extinction curves yet published and it covers a wide range of environments, from dense molecular clouds to the diffuse interstellar medium (ISM), with extinctions A(V) ranging from 0.50 to 4.80. It is the first to extend far beyond the solar neighborhood and into the Galaxy at large, with 30 sightlines having distances > 5 kpc. Previously, the longest sightlines with FM parameters and R(V) extended ~ 1 kpc. We find that (1.) the CCM extinction law applies for 93% of the sightlines, implying that dust processing in the Galaxy is efficient and systematic; (2.) the central wavelength of the 2175 A bump is constant; (3.) the 2175 A bump width is dependent on environment. Only four sightlines show systematic deviations from CCM, HD 29647, 62542, 204827, and 210121. These sightlines all sample dense, molecule-rich clouds. The new extinction curves and values of R(V) allow us to revise the CCM law., Comment: 32 pages, 12 figures
Published: 2004
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161. New debris disk candidates: 24 micron stellar excesses at 100 Myr

Author: Gorlova, Nadya, Padgett, Deborah L., Rieke, George H., Muzerolle, James, Morrison, Jane E., Engelbracht, Chad W., Gordon, Karl D., Hines, Dean C., Hinz, Joannah C., Noriega-Crespo, Alberto, Rebull, Luisa, Stansberry, John A., Stapelfeldt, Karl R., Su, Kate Y. L., and Young, Erick T.
Subjects: Astrophysics
Abstract: Sixty three members of the 100 Myr old open cluster M47 (NGC 2422) have been detected at 24 micron with Spitzer. The Be star V 378 Pup shows an excess both in the near-infrared and at 24 micron (K-[24] = 2.4 mag), probably due to free-free emission from the gaseous envelope. Seven other early-type stars show smaller excesses, K-[24] = 0.6-0.9. Among late-type stars, two show large excesses: P922 - a K1V star with K-[24] = 1.08 pm 0.11 and P1121 - an F9V star with K-[24] = 3.72 pm 0.02. P1121 is the first known main-sequence star showing an excess comparable to that of beta Pic, which may indicate the presence of an exceptionally massive debris disk. It is possible that a major planetesimal collision has occurred in this system, consistent with the few hundred Myr time scales estimated for the clearing of the Solar System., Comment: 14 pages, 3 figures, accepted to the special Spitzer issue of the ApJS
Published: 2004
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162. Discovery of Blue Luminescence in the Red Rectangle: Possible Fluorescence from Neutral Polycyclic Aromatic Hydrocarbon Molecules?

Author: Vijh, Uma P., Witt, Adolf N., and Gordon, Karl D.
Subjects: Astrophysics
Abstract: Here we report our discovery of a band of blue luminescence (BL) in the Red Rectangle (RR) nebula. This enigmatic proto-planetary nebula is also one of the brightest known sources of extended red emission as well as of unidentified infra-red (UIR) band emissions. The spectrum of this newly discovered BL is most likely fluorescence from small neutral polycyclic aromatic hydrocarbon (PAH) molecules. PAH molecules are thought to be widely present in many interstellar and circumstellar environments in our galaxy as well as in other galaxies, and are considered likely carriers of the UIR-band emission. However, no specific PAH molecule has yet been identified in a source outside the solar system, as the set of mid-infra-red emission features attributed to these molecules between the wavelengths of 3.3 micron and 16.4 micron is largely insensitive to molecular sizes. In contrast, near-UV/blue fluorescence of PAHs is more specific as to size, structure, and charge state of a PAH molecule. If the carriers of this near-UV/blue fluorescence are PAHs, they are most likely neutral PAH molecules consisting of 3-4 aromatic rings such as anthracene (C14H10) and pyrene (C16H10). These small PAHs would then be the largest molecules specifically identified in the interstellar medium., Comment: 4 pages, 4 figures, Accepted for publication in ApJL (LaTeX, uses emulateapj.sty)
Published: 2004
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163. Interstellar Polarization in M31

Author: Clayton, Geoffrey C., Wolff, Michael J., Gordon, Karl D., Smith, Paul S., Nordsieck, Kenneth H., and Babler, Brian L.
Subjects: Astrophysics
Abstract: The wavelength dependence of interstellar polarization due to dust in M31 has been observed along four sightlines. Only one sightline had been measured previously.The globular clusters, S78, S150, S233 and Baade 327 were used as point sources to probe the interstellar dust in M31. The Serkowski law produces good fits for all the sightlines although the relationship between K and lambda(max) may be different from that found in the Galaxy. The results of this study imply that the slope K/lambda(max) may be significantly larger in M31. The Serkowski curves are significantly narrower than those of the same lambda(max) in the Galaxy and may require extreme modifications to the size distributions of silicate particles. The fits for the four sightlines reveal values of lambda(max) ranging from 4800 to 5500 A. These are consistent with average values of lambda(max) measured in the Galaxy and the Magellanic Clouds. The range measured for M31 corresponds to R(V) values of 2.7 to 3.1. The range in R(V) seen in the Galaxy is 2.5 to 5.5 implying, for this small sample, that the average size ofinterstellar grains in M31 is typically smaller than that seen for Galactic grains if the nature of the grains is the same. Also, the polarization efficiency for these sightlines is large although some bias is expected since sightlines known to have significant interstellar polarization were selected for the sample., Comment: 13 pages, 2 figures, AJ in press (June)
Published: 2004
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164. Interstellar Dust Scattering Properties

Author: Gordon, Karl D.
Subjects: Astrophysics
Abstract: Studies of dust scattering properties in astrophysical objects with Milky Way interstellar dust are reviewed. Such objects are reflection nebulae, dark clouds, and the Diffuse Galactic Light (DGL). To ensure their basic quality, studies had to satisfy four basic criteria to be included in this review. These four criteria significantly reduced the scatter in dust properties measurements, especially in the case of the DGL. Determinations of dust scattering properties were found to be internally consistent for each object type as well as consistent between object types. The 2175 A bump is seen as an absorption feature. Comparisons with dust grain models find general agreement with significant disagreements at particular wavelengths (especially in the far-ultraviolet). Finally, unanswered questions and future directions are enumerated., Comment: 15 pages, color, to appear in Astrophysics of Dust, ASP Conf. Proceedings, eds. A. N. Witt, G. C. Clayton, and B. T. Draine
Published: 2003

165. SMC-Type Interstellar Dust in the Milky Way

Author: Valencic, Lynne A., Clayton, Geoffrey C., Gordon, Karl, and Smith, Tracy L.
Subjects: Astrophysics
Abstract: It is well known that the sightline toward HD 204827 in the cluster Trumpler 37 shows an UV extinction curve that does not follow CCM. However, when a dust component, foreground to the cluster, is removed, the residual extinction curve is identical to that found in the SMC within the uncertainties. The curve is very steep and has little or no 2175 A bump. The position of HD 204827 in the sky is projected onto the edge of the Cepheus IRAS Bubble. In addition, HD 204827 has an IRAS bowshock indicating that it may be embedded in dust swept up by the supernova that created the IRAS Bubble. Shocks due to the supernova may have led to substantial processing of this dust. The HD 204827 cloud is dense and rich in carbon molecules. The 3.4 $\mu$m feature indicating a C-H grain mantle is present in the dust toward HD 204827. The environment of the HD 204827 cloud dust may be similar to the dust associated with HD 62542 which lies on the edge of a stellar wind bubble and is also dense and rich in molecules. This sightline may be a Rosetta Stone if its environment can be related to those in the SMC having similar dust., Comment: 18 pages, 5 figures, ApJ in press
Published: 2003
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166. A Quantitative Comparison of SMC, LMC, and Milky Way UV to NIR Extinction Curves

Author: Gordon, Karl D., Clayton, Geoffrey C., Misselt, K. A., Landolt, Arlo U., and Wolff, Michael J.
Subjects: Astrophysics
Abstract: We present an exhaustive, quantitative comparison of all of the known extinction curves in the Small and Large Magellanic Clouds (SMC and LMC) with our understanding of the general behavior of Milky Way extinction curves. The R_V dependent CCM relationship and the sample of extinction curves used to derive this relationship is used to describe the general behavior of Milky Way extinction curves. The ultraviolet portion of the SMC and LMC extinction curves are derived from archival IUE data, except for one new SMC extinction curve which was measured using HST/STIS observations. The optical extinction curves are derived from new (for the SMC) and literature UBVRI photometry (for the LMC). The near-infrared extinction curves are calculated mainly from 2MASS photometry supplemented with DENIS and new JHK photometry. For each extinction curve, we give R_V = A(V)/E(B-V) and N(HI) values which probe the same dust column as the extinction curve. We compare the properties of the SMC and LMC extinction curves with the CCM relationship three different ways: each curve by itself, the behavior of extinction at different wavelengths with R_V, and behavior of the extinction curve FM fit parameters with R_V. As has been found previously, we find that a small number of LMC extinction curves are consistent with the CCM relationship, but majority of the LMC and all of the SMC curves do not follow the CCM relationship. For the first time, we find that the CCM relationship seems to form a bound on the properties of all of the LMC and SMC extinction curves. This result strengthens the picture of dust extinction curves exhibit a continuum of properties between those found in the Milky Way and the SMC Bar. (abridged), Comment: 18 pages, 10 figures, ApJ in press
Published: 2003
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167. The Role of Polycyclic Aromatic Hydrocarbons in Ultraviolet Extinction. I. Probing small molecular PAHs

Author: Clayton, Geoffrey C., Gordon, Karl D., Witt, Adolf N., Allamandola, L. J., Martin, Peter G., Salama, F., Snow, T. P., Whittet, D. C. B., Wolff, Michael J., and Smith, Tracy L.
Subjects: Astrophysics
Abstract: We have obtained new STIS/HST spectra to search for structure in the ultraviolet interstellar extinction curve, with particular emphasis on a search for absorption features produced by polycyclic aromatic hydrocarbons (PAHs). The presence of these molecules in the interstellar medium has been postulated to explain the infrared emission features seen in the 3-13 $\mu$m spectra of numerous sources. UV spectra are uniquely capable of identifying specific PAH molecules. We obtained high S/N UV spectra of stars which are significantly more reddened than those observed in previous studies. These data put limits on the role of small (30-50 carbon atoms) PAHs in UV extinction and call for further observations to probe the role of larger PAHs. PAHs are of importance because of their ubiquity and high abundance inferred from the infrared data and also because they may link the molecular and dust phases of the interstellar medium. A presence or absence of ultraviolet absorption bands due to PAHs could be a definitive test of this hypothesis. We should be able to detect a 20 \AA wide feature down to a 3$\sigma$ limit of $\sim$0.02 A$_V$. No such absorption features are seen other than the well-known 2175 \AA bump., Comment: 16 pages, 3 figure, ApJ in press
Published: 2003
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168. The Dust in Lyman Break Galaxies

Author: Vijh, Uma P., Witt, Adolf N., and Gordon, Karl D.
Subjects: Astrophysics
Abstract: We present our analysis of UV attenuation by internal dust of a large sample (N=906 galaxies) of Lyman Break Galaxies (LBGs). Using spectral energy distributions (SEDs) from the P\'EGASE galaxy spectral evolution model we apply dust attenuation corrections to the G-R colors using the Witt & Gordon (2000) models for radiative transfer in dusty galactic environments to arrive at the UV attenuation factors. We show that the dust in the LBGs exhibit SMC-like characteristics rather than MW-like, and that the dust geometry in these systems is most likely to be represented by a clumpy shell configuration. We show that the attenuation factor exhibits a pronounced dependence on the luminosity of the LBG, $a_{1600}\propto (L/L_\sun)^\alpha$, where $0.5\leq\alpha\leq1.5$. The exponent $\alpha$ depends on the initial parameters of the stellar population chosen to model the galaxies and the dust properties. We find that the luminosity weighted average attenuation factor is likely to be in the range from $5.7-18.5$, which is consistent with the upper limits to the star formation rate at $2
Published: 2003
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169. A New Feature in the Interstellar Extinction Curve at 2700 A: Diamonds in the Rough?

Author: Clayton, Geoffrey C., Gordon, Karl D., Witt, Adolf N., Allamandola, L. J., Martin, Peter G., Salama, F., Snow, T. P., Whittet, D. C. B., Wolff, Michael J., and Smith, Tracy L.
Subjects: Astrophysics
Abstract: Space Telescope Imaging Spectrograph (STIS) and archival International Ultraviolet Explorer (IUE) data were used to search for structure in the ultraviolet interstellar extinction curve. Between 1250 and 3200 A, in addition to the well-known 2175 A bump, there is only one fairly small (10%) absorption feature at 2700 A. The feature is very broad (>400 A). It coincides extremely well in position and shape with laboratory measurements of presolar diamond grains found in meteorites. As this feature appears in both the new STIS and archival IUE data, it is unlikely to be an instrumental effect. This feature appears to be ubiquitous in the ISM as it is seen along sightlines toward various clouds with reddenings in the range of E(B-V) = 0.35 to 1.73 mag. The identification with diamonds remains tentative since it is based on a single, weak feature. If the feature is due to interstellar diamonds then they require an order of magnitude more absorption strength per gram/cm^2 than the presolar meteoritic diamonds measured in the lab., Comment: Paper withdrawn after reanalysis of data. Paper no longer available for download
Published: 2002

170. The effects of dust in simple environments: Large Magellanic Cloud HII regions

Author: Bell, Eric F., Gordon, Karl D., Kennicutt Jr., Robert C., and Zaritsky, Dennis
Subjects: Astrophysics
Abstract: We investigate the effects of dust on Large Magellanic Cloud (LMC) HII region spectral energy distributions using arcminute-resolution far-ultraviolet (FUV), H-alpha, far-infrared (FIR), and radio images. Widely-used indicators of the amount of light lost to dust (attenuation) at H-alpha and in the FUV correlate with each other, although often with substantial scatter. There are two interesting systematic discrepancies. First, H-alpha attenuations estimated from the Balmer decrement are lower than those estimated from the H-alpha-to-thermal radio luminosity ratio. Our data, at this stage, cannot unambiguously identify the source of this discrepancy. Second, the attenuation at 1500 angstroms and UV spectral slope, beta, correlate, although the slope and scatter are substantially different from the correlation first derived for starbursting galaxies by Calzetti et al. Combining our result with those of Meurer et al. for ultra-luminous infrared galaxies and Calzetti et al. for starbursting galaxies, we conclude that no single relation between beta and 1500 angstrom attenuation is applicable to all star-forming systems., Comment: 15 pages; 11 embedded postscript figures; 1 GIF figure; to appear in ApJ on 20 January 2002, vol. 565, no. 1. Section 5.1 (the discussion of the discrepancies between Balmer-derived and Radio-derived H alpha attenuations) has changed considerably to take into account small number statistics for high-mass stars in the model HII region IMFs. The abstract and conclusions have been modified
Published: 2001
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171. Butterfly genome reveals promiscuous exchange of mimicry adaptations among species

Author: Dasmahapatra, Kanchon K, Walters, James R, Briscoe, Adriana D, Davey, John W, Whibley, Annabel, Nadeau, Nicola J, Zimin, Aleksey V, Hughes, Daniel ST, Ferguson, Laura C, Martin, Simon H, Salazar, Camilo, Lewis, James J, Adler, Sebastian, Ahn, Seung-Joon, Baker, Dean A, Baxter, Simon W, Chamberlain, Nicola L, Chauhan, Ritika, Counterman, Brian A, Dalmay, Tamas, Gilbert, Lawrence E, Gordon, Karl, Heckel, David G, Hines, Heather M, Hoff, Katharina J, Holland, Peter WH, Jacquin-Joly, Emmanuelle, Jiggins, Francis M, Jones, Robert T, Kapan, Durrell D, Kersey, Paul, Lamas, Gerardo, Lawson, Daniel, Mapleson, Daniel, Maroja, Luana S, Martin, Arnaud, Moxon, Simon, Palmer, William J, Papa, Riccardo, Papanicolaou, Alexie, Pauchet, Yannick, Ray, David A, Rosser, Neil, Salzberg, Steven L, Supple, Megan A, Surridge, Alison, Tenger-Trolander, Ayse, Vogel, Heiko, Wilkinson, Paul A, Wilson, Derek, Yorke, James A, Yuan, Furong, Balmuth, Alexi L, Eland, Cathlene, Gharbi, Karim, Thomson, Marian, Gibbs, Richard A, Han, Yi, Jayaseelan, Joy C, Kovar, Christie, Mathew, Tittu, Muzny, Donna M, Ongeri, Fiona, Pu, Ling-Ling, Qu, Jiaxin, Thornton, Rebecca L, Worley, Kim C, Wu, Yuan-Qing, Linares, Mauricio, Blaxter, Mark L, Ffrench-Constant, Richard H, Joron, Mathieu, Kronforst, Marcus R, Mullen, Sean P, Reed, Robert D, Scherer, Steven E, Richards, Stephen, Mallet, James, McMillan, W Owen, and Jiggins, Chris D
Subjects: Adaptation, Physiological, Animals, Bombyx, Butterflies, Chromosomes, Insect, Evolution, Molecular, Gene Flow, Genes, Homeobox, Genes, Insect, Genome, Insect, Genomics, Hybridization, Genetic, Molecular Mimicry, Molecular Sequence Data, Phylogeny, Pigmentation, Sequence Analysis, DNA, Species Specificity, Synteny, Wings, Animal, Heliconius Genome Consortium, General Science & Technology
Abstract: The evolutionary importance of hybridization and introgression has long been debated. Hybrids are usually rare and unfit, but even infrequent hybridization can aid adaptation by transferring beneficial traits between species. Here we use genomic tools to investigate introgression in Heliconius, a rapidly radiating genus of neotropical butterflies widely used in studies of ecology, behaviour, mimicry and speciation. We sequenced the genome of Heliconius melpomene and compared it with other taxa to investigate chromosomal evolution in Lepidoptera and gene flow among multiple Heliconius species and races. Among 12,669 predicted genes, biologically important expansions of families of chemosensory and Hox genes are particularly noteworthy. Chromosomal organization has remained broadly conserved since the Cretaceous period, when butterflies split from the Bombyx (silkmoth) lineage. Using genomic resequencing, we show hybrid exchange of genes between three co-mimics, Heliconius melpomene, Heliconius timareta and Heliconius elevatus, especially at two genomic regions that control mimicry pattern. We infer that closely related Heliconius species exchange protective colour-pattern genes promiscuously, implying that hybridization has an important role in adaptive radiation.
Published: 2012

172. Massive-Star Supernovae as Major Dust Factories

Author: Ercolano, Barbara, Barlow, M. J., Clayton, Geoffrey C., Zijlstra, Albert A., Meixner, Margaret, Speck, Angela, Gledhill, Tim M., Panagia, Nino, Cohen, Martin, Gordon, Karl D., Meyer, Martin, Fabbri, Joanna, Welch, Douglas L., Regan, Michael W., and Kennicutt, Robert C.
Published: 2006

173. The DIRTY Model. I. Monte Carlo Radiative Transfer Through Dust

Author: Gordon, Karl D., Misselt, K. A., Witt, Adolf N., and Clayton, Geoffrey C.
Subjects: Astrophysics
Abstract: We present the DIRTY radiative transfer model in this paper and a companion paper. This model computes the polarized radiative transfer of photons from arbitrary distributions of stars through arbitrary distributions of dust using Monte Carlo techniques. The dust re-emission is done self-consistently with the dust absorption and scattering and includes all three important emission paths: equilibrium thermal emission, non-equilibrium thermal emission, and the aromatic features emission. The algorithm used for the radiative transfer allows for the efficient computation of the appearance of a model system as seen from any viewing direction. We present a simple method for computing an upper limit on the output quantity uncertainties for Monte Carlo radiative transfer models which use the weighted photon approach., Comment: 8 pages, 3 figures, accepted to the ApJ
Published: 2000
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174. Magellanic-Cloud-Type Interstellar Dust Along Low Density Sightlines in the Galaxy

Author: Clayton, Geoffrey C., Gordon, Karl D., and Wolff, Michael J.
Subjects: Astrophysics
Abstract: We have studied the UV extinction properties along 30 Galactic sightlines using data from the International Ultraviolet Explorer (IUE) archive that have never been previously examined. These distant (d > 1 kpc) sightlines were selected to investigate the distribution and physical conditions of gas located in low density regions of the Galactic disk and halo. The average densities along these sightlines are extremely low. It is likely that they are dominated by the warm intercloud medium and have little contribution from the cold cloud medium. We find that a subsample of these sightlines has extinction curves with weak bumps and very steep far-UV extinction reminiscent of the Magellanic clouds. These sightlines all lie in the region bounded by 325 < l < 0 and -5 > b > -11. The gas along these sightlines shows forbidden velocities which may indicate that the dust has been subject to shocks. This type of low density sightline may mimic the environments found in the Magellanic Clouds. Large values of N(Ca II)/N(Na I) indicating low depletion are associated with steep far-UV extinction. A possible correlation exists between decreasing bump strength and increasing far-UV steepness for extinction curves in the Galaxy and the Magellanic Clouds., Comment: 12 pages, ApJS, in press (Aug 2000)
Published: 2000
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175. The Flux Ratio Method for Determining the Dust Attenuation of Starburst Galaxies

Author: Gordon, Karl D., Clayton, Geoffrey C., Witt, Adolf N., and Misselt, K. A.
Subjects: Astrophysics
Abstract: The presence of dust in starburst galaxies complicates the study of their stellar populations as the dust's effects are similar to those associated with changes in the galaxies' stellar age and metallicity. This degeneracy can be overcome for starburst galaxies if UV/optical/near-infrared observations are combined with far-infrared observations. We present the calibration of the flux ratio method for calculating the dust attenuation at a particular wavelength, Att(\lambda), based on the measurement of F(IR)/F(\lambda) flux ratio. Our calibration is based on spectral energy distributions (SEDs) from the PEGASE stellar evolutionary synthesis model and the effects of dust (absorption and scattering) as calculated from our Monte Carlo radiative transfer model. We tested the attenuations predicted from this method for the Balmer emission lines of a sample starburst galaxies against those calculated using radio observations and found good agreement. The UV attenuation curves for a handful of starburst galaxies were calculated using the flux ratio method, and they compare favorably with past work. The relationship between Att(\lambda) and F(IR)/F(\lambda) is almost completely independent of the assumed dust properties (grain type, distribution, and clumpiness). For the UV, the relationship is also independent of the assumed stellar properties (age, metallicity, etc) accept for the case of very old burst populations. However at longer wavelengths, the relationship is dependent on the assumed stellar properties., Comment: accepted by the ApJ, 18 pages, color figures, b/w version at http://mips.as.arizona.edu/~kgordon/papers/fr_method.html
Published: 1999
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176. Multiple Scattering in Clumpy Media. II. Galactic Environments

Author: Witt, Adolf N. and Gordon, Karl D.
Subjects: Astrophysics
Abstract: We present and discuss the results of new multiple-scattering radiative transfer calculations for three representative types of galactic environments, filled with either homogeneous or two-phase clumpy dust distributions. Extinction and scattering properties for two types of interstellar dust, similar to those found in the average diffuse medium of the Milky Way Galaxy (MW) and the Bar of the Small Magellanic Cloud (SMC), are considered. The wavelength coverage extends from 1000 A to 30,000 A, with particular emphasis on the rest-frame UV. This makes these models especially applicable to starburst galaxies and Lyman-break galaxy samples. The examination of the models concentrates on the study of UV/visual/near-IR reddening effects, the wavelength dependence of attenuation, and on the changes that arise from the transition from homogeneous to clumpy dust distributions in different star/dust geometries. Embedded dust, especially when clumpy, leads to saturation at fairly low reddening values with correspondingly gray attenuation functions. This makes the assessment of the attenuation of the far-UV flux from starburst galaxies difficult, if only UV/visual/near-IR data are available. Existing data for UV-selected starburst galaxies indicate a range of UV attenuation factors of 0-150. Our models reproduce the "Calzetti Attenuation Law", provided one adopts SMC-type dust and a clumpy shell-type dust distribution surrounding the starbursts. The average far-UV attenuation factor for the Calzetti sample is found to be 7.4. The only relatively reliable measure for the UV attenuation factor for single galaxies was found in the ratio of the integrated far-IR flux to the far-UV flux, measured near 1600 A, requiring the measurement of the entire spectral energy distribution of galaxies., Comment: accepted by the ApJ (10 Dec 1999), 17 pages, color figures included, paper and data tables also at http://mips.as.arizona.edu/~kgordon/papers/clumpy_dust_II.html
Published: 1999
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177. The Ever Changing Circumstellar Nebula Around UW Centauri

Author: Clayton, Geoffrey C., Kerber, F., Gordon, Karl D., Lawson, Warrick A., Wolff, Michael J., Pollacco, D. L., and Furlan, E.
Subjects: Astrophysics
Abstract: We present new images of the reflection nebula surrounding the R Coronae Borealis Star, UW Cen. This nebula, first detected in 1990, has changed its appearance significantly. At the estimated distance of UW Cen, this nebula is approximately 0.6 ly in radius so the nebula cannot have physically altered in only 8 years. Instead, the morphology of the nebula appears to change as different parts are illuminated by light from the central star modulated by shifting thick dust clouds near its surface. These dust clouds form and dissipate at irregular intervals causing the well-known declines in the R Coronae Borealis (RCB) stars. In this way, the central star acts like a lighthouse shining through holes in the dust clouds and lighting up different portions of the nebula. The existence of this nebula provides clues to the evolutionary history of RCB stars possibly linking them to the Planetary Nebulae and the final helium shell flash stars., Comment: To be published in ApJ Letters. 5 pages, 3 figures (2 in color)
Published: 1999
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178. JWST MIRI Flight Performance: Detector Effects and Data Reduction Algorithms

Author: Morrison, Jane E., primary, Dicken, Daniel, additional, Argyriou, Ioannis, additional, Ressler, Michael E., additional, Gordon, Karl D., additional, Regan, Michael W., additional, Cracraft, Misty, additional, Rieke, George H., additional, Engesser, Michael, additional, Alberts, Stacey, additional, Alvarez-Marquez, Javier, additional, Colbert, James W., additional, Fox, Ori D., additional, Gasman, Danny, additional, Law, David R., additional, Garcia Marin, Macarena, additional, Gáspár, András, additional, Guillard, Pierre, additional, Kendrew, Sarah, additional, Labiano, A., additional, Laine, Seppo, additional, Noriega-Crespo, A., additional, Shivaei, Irene, additional, and Sloan, G. C., additional
Published: 2023
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179. The James Webb Space Telescope Mission

Author: Gardner, Jonathan P., primary, Mather, John C., additional, Abbott, Randy, additional, Abell, James S., additional, Abernathy, Mark, additional, Abney, Faith E., additional, Abraham, John G., additional, Abraham, Roberto, additional, Abul-Huda, Yasin M., additional, Acton, Scott, additional, Adams, Cynthia K., additional, Adams, Evan, additional, Adler, David S., additional, Adriaensen, Maarten, additional, Aguilar, Jonathan Albert, additional, Ahmed, Mansoor, additional, Ahmed, Nasif S., additional, Ahmed, Tanjira, additional, Albat, Rüdeger, additional, Albert, Loïc, additional, Alberts, Stacey, additional, Aldridge, David, additional, Allen, Mary Marsha, additional, Allen, Shaune S., additional, Altenburg, Martin, additional, Altunc, Serhat, additional, Alvarez, Jose Lorenzo, additional, Álvarez-Márquez, Javier, additional, de Oliveira, Catarina Alves, additional, Ambrose, Leslie L., additional, Anandakrishnan, Satya M., additional, Andersen, Gregory C., additional, Anderson, Harry James, additional, Anderson, Jay, additional, Anderson, Kristen, additional, Anderson, Sara M., additional, Aprea, Julio, additional, Archer, Benita J., additional, Arenberg, Jonathan W., additional, Argyriou, Ioannis, additional, Arribas, Santiago, additional, Artigau, Étienne, additional, Arvai, Amanda Rose, additional, Atcheson, Paul, additional, Atkinson, Charles B., additional, Averbukh, Jesse, additional, Aymergen, Cagatay, additional, Bacinski, John J., additional, Baggett, Wayne E., additional, Bagnasco, Giorgio, additional, Baker, Lynn L., additional, Balzano, Vicki Ann, additional, Banks, Kimberly A., additional, Baran, David A., additional, Barker, Elizabeth A., additional, Barrett, Larry K., additional, Barringer, Bruce O., additional, Barto, Allison, additional, Bast, William, additional, Baudoz, Pierre, additional, Baum, Stefi, additional, Beatty, Thomas G., additional, Beaulieu, Mathilde, additional, Bechtold, Kathryn, additional, Beck, Tracy, additional, Beddard, Megan M., additional, Beichman, Charles, additional, Bellagama, Larry, additional, Bely, Pierre, additional, Berger, Timothy W., additional, Bergeron, Louis E., additional, Bernier, Antoine-Darveau, additional, Bertch, Maria D., additional, Beskow, Charlotte, additional, Betz, Laura E., additional, Biagetti, Carl P., additional, Birkmann, Stephan, additional, Bjorklund, Kurt F., additional, Blackwood, James D., additional, Blazek, Ronald Paul, additional, Blossfeld, Stephen, additional, Bluth, Marcel, additional, Boccaletti, Anthony, additional, Boegner Jr, Martin E., additional, Bohlin, Ralph C., additional, Boia, John Joseph, additional, Böker, Torsten, additional, Bonaventura, N., additional, Bond, Nicholas A., additional, Bosley, Kari Ann, additional, Boucarut, Rene A., additional, Bouchet, Patrice, additional, Bouwman, Jeroen, additional, Bower, Gary, additional, Bowers, Ariel S., additional, Bowers, Charles W., additional, Boyce, Leslye A., additional, Boyer, Christine T., additional, Boyer, Martha L., additional, Boyer, Michael, additional, Boyer, Robert, additional, Bradley, Larry D., additional, Brady, Gregory R., additional, Brandl, Bernhard R., additional, Brannen, Judith L., additional, Breda, David, additional, Bremmer, Harold G., additional, Brennan, David, additional, Bresnahan, Pamela A., additional, Bright, Stacey N., additional, Broiles, Brian J., additional, Bromenschenkel, Asa, additional, Brooks, Brian H., additional, Brooks, Keira J., additional, Brown, Bob, additional, Brown, Bruce, additional, Brown, Thomas M., additional, Bruce, Barry W., additional, Bryson, Jonathan G., additional, Bujanda, Edwin D., additional, Bullock, Blake M., additional, Bunker, A. J., additional, Bureo, Rafael, additional, Burt, Irving J., additional, Bush, James Aaron, additional, Bushouse, Howard A., additional, Bussman, Marie C., additional, Cabaud, Olivier, additional, Cale, Steven, additional, Calhoon, Charles D., additional, Calvani, Humberto, additional, Canipe, Alicia M., additional, Caputo, Francis M., additional, Cara, Mihai, additional, Carey, Larkin, additional, Case, Michael Eli, additional, Cesari, Thaddeus, additional, Cetorelli, Lee D., additional, Chance, Don R., additional, Chandler, Lynn, additional, Chaney, Dave, additional, Chapman, George N., additional, Charlot, S., additional, Chayer, Pierre, additional, Cheezum, Jeffrey I., additional, Chen, Bin, additional, Chen, Christine H., additional, Cherinka, Brian, additional, Chichester, Sarah C., additional, Chilton, Zachary S., additional, Chittiraibalan, Dharini, additional, Clampin, Mark, additional, Clark, Charles R., additional, Clark, Kerry W., additional, Clark, Stephanie M., additional, Claybrooks, Edward E., additional, Cleveland, Keith A., additional, Cohen, Andrew L., additional, Cohen, Lester M., additional, Colón, Knicole D., additional, Coleman, Benee L., additional, Colina, Luis, additional, Comber, Brian J., additional, Comeau, Thomas M., additional, Comer, Thomas, additional, Reis, Alain Conde, additional, Connolly, Dennis C., additional, Conroy, Kyle E., additional, Contos, Adam R., additional, Contreras, James, additional, Cook, Neil J., additional, Cooper, James L., additional, Cooper, Rachel Aviva, additional, Correia, Michael F., additional, Correnti, Matteo, additional, Cossou, Christophe, additional, Costanza, Brian F., additional, Coulais, Alain, additional, Cox, Colin R., additional, Coyle, Ray T., additional, Cracraft, Misty M., additional, Crew, Keith A., additional, Curtis, Gary J., additional, Cusveller, Bianca, additional, Maciel, Cleyciane Da Costa, additional, Dailey, Christopher T., additional, Daugeron, Frédéric, additional, Davidson, Greg S., additional, Davies, James E., additional, Davis, Katherine Anne, additional, Davis, Michael S., additional, Day, Ratna, additional, de Chambure, Daniel, additional, de Jong, Pauline, additional, De Marchi, Guido, additional, Dean, Bruce H., additional, Decker, John E., additional, Delisa, Amy S., additional, Dell, Lawrence C., additional, Dellagatta, Gail, additional, Dembinska, Franciszka, additional, Demosthenes, Sandor, additional, Dencheva, Nadezhda M., additional, Deneu, Philippe, additional, DePriest, William W., additional, Deschenes, Jeremy, additional, Dethienne, Nathalie, additional, Detre, Örs Hunor, additional, Diaz, Rosa Izela, additional, Dicken, Daniel, additional, DiFelice, Audrey S., additional, Dillman, Matthew, additional, Disharoon, Maureen O., additional, Dixon, William V., additional, Doggett, Jesse B., additional, Dominguez, Keisha L., additional, Donaldson, Thomas S., additional, Doria-Warner, Cristina M., additional, Santos, Tony Dos, additional, Doty, Heather, additional, Douglas, Jr, Robert E., additional, Doyon, René, additional, Dressler, Alan, additional, Driggers, Jennifer, additional, Driggers, Phillip A., additional, Dunn, Jamie L., additional, DuPrie, Kimberly C., additional, Dupuis, Jean, additional, Durning, John, additional, Dutta, Sanghamitra B., additional, Earl, Nicholas M., additional, Eccleston, Paul, additional, Ecobichon, Pascal, additional, Egami, Eiichi, additional, Ehrenwinkler, Ralf, additional, Eisenhamer, Jonathan D., additional, Eisenhower, Michael, additional, Eisenstein, Daniel J., additional, El Hamel, Zaky, additional, Elie, Michelle L., additional, Elliott, James, additional, Elliott, Kyle Wesley, additional, Engesser, Michael, additional, Espinoza, Néstor, additional, Etienne, Odessa, additional, Etxaluze, Mireya, additional, Evans, Leah, additional, Fabreguettes, Luce, additional, Falcolini, Massimo, additional, Falini, Patrick R., additional, Fatig, Curtis, additional, Feeney, Matthew, additional, Feinberg, Lee D., additional, Fels, Raymond, additional, Ferdous, Nazma, additional, Ferguson, Henry C., additional, Ferrarese, Laura, additional, Ferreira, Marie-Héléne, additional, Ferruit, Pierre, additional, Ferry, Malcolm, additional, Filippazzo, Joseph Charles, additional, Firre, Daniel, additional, Fix, Mees, additional, Flagey, Nicolas, additional, Flanagan, Kathryn A., additional, Fleming, Scott W., additional, Florian, Michael, additional, Flynn, James R., additional, Foiadelli, Luca, additional, Fontaine, Mark R., additional, Fontanella, Erin Marie, additional, Forshay, Peter Randolph, additional, Fortner, Elizabeth A., additional, Fox, Ori D., additional, Framarini, Alexandro P., additional, Francisco, John I., additional, Franck, Randy, additional, Franx, Marijn, additional, Franz, David E., additional, Friedman, Scott D., additional, Friend, Katheryn E., additional, Frost, James R., additional, Fu, Henry, additional, Fullerton, Alexander W., additional, Gaillard, Lionel, additional, Galkin, Sergey, additional, Gallagher, Ben, additional, Galyer, Anthony D., additional, García Marín, Macarena, additional, Gardner, Lisa E., additional, Garland, Dennis, additional, Garrett, Bruce Albert, additional, Gasman, Danny, additional, Gáspár, András, additional, Gastaud, René, additional, Gaudreau, Daniel, additional, Gauthier, Peter Timothy, additional, Geers, Vincent, additional, Geithner, Paul H., additional, Gennaro, Mario, additional, Gerber, John, additional, Gereau, John C., additional, Giampaoli, Robert, additional, Giardino, Giovanna, additional, Gibbons, Paul C., additional, Gilbert, Karoline, additional, Gilman, Larry, additional, Girard, Julien H., additional, Giuliano, Mark E., additional, Gkountis, Konstantinos, additional, Glasse, Alistair, additional, Glassmire, Kirk Zachary, additional, Glauser, Adrian Michael, additional, Glazer, Stuart D., additional, Goldberg, Joshua, additional, Golimowski, David A., additional, Gonzaga, Shireen P., additional, Gordon, Karl D., additional, Gordon, Shawn J., additional, Goudfrooij, Paul, additional, Gough, Michael J., additional, Graham, Adrian J., additional, Grau, Christopher M., additional, Green, Joel David, additional, Greene, Gretchen R., additional, Greene, Thomas P., additional, Greenfield, Perry E., additional, Greenhouse, Matthew A., additional, Greve, Thomas R., additional, Greville, Edgar M., additional, Grimaldi, Stefano, additional, Groe, Frank E., additional, Groebner, Andrew, additional, Grumm, David M., additional, Grundy, Timothy, additional, Güdel, Manuel, additional, Guillard, Pierre, additional, Guldalian, John, additional, Gunn, Christopher A., additional, Gurule, Anthony, additional, Gutman, Irvin Meyer, additional, Guy, Paul D., additional, Guyot, Benjamin, additional, Hack, Warren J., additional, Haderlein, Peter, additional, Hagan, James B., additional, Hagedorn, Andria, additional, Hainline, Kevin, additional, Haley, Craig, additional, Hami, Maryam, additional, Hamilton, Forrest Clifford, additional, Hammann, Jeffrey, additional, Hammel, Heidi B., additional, Hanley, Christopher J., additional, Hansen, Carl August, additional, Hardy, Bruce, additional, Harnisch, Bernd, additional, Harr, Michael Hunter, additional, Harris, Pamela, additional, Hart, Jessica Ann, additional, Hartig, George F., additional, Hasan, Hashima, additional, Hashim, Kathleen Marie, additional, Hashimoto, Ryan, additional, Haskins, Sujee J., additional, Hawkins, Robert Edward, additional, Hayden, Brian, additional, Hayden, William L., additional, Healy, Mike, additional, Hecht, Karen, additional, Heeg, Vince J., additional, Hejal, Reem, additional, Helm, Kristopher A., additional, Hengemihle, Nicholas J., additional, Henning, Thomas, additional, Henry, Alaina, additional, Henry, Ronald L., additional, Henshaw, Katherine, additional, Hernandez, Scarlin, additional, Herrington, Donald C., additional, Heske, Astrid, additional, Hesman, Brigette Emily, additional, Hickey, David L., additional, Hilbert, Bryan N., additional, Hines, Dean C., additional, Hinz, Michael R., additional, Hirsch, Michael, additional, Hitcho, Robert S., additional, Hodapp, Klaus, additional, Hodge, Philip E., additional, Hoffman, Melissa, additional, Holfeltz, Sherie T., additional, Holler, Bryan Jason, additional, Hoppa, Jennifer Rose, additional, Horner, Scott, additional, Howard, Joseph M., additional, Howard, Richard J., additional, Huber, Jean M., additional, Hunkeler, Joseph S., additional, Hunter, Alexander, additional, Hunter, David Gavin, additional, Hurd, Spencer W., additional, Hurst, Brendan J., additional, Hutchings, John B., additional, Hylan, Jason E., additional, Ignat, Luminita Ilinca, additional, Illingworth, Garth, additional, Irish, Sandra M., additional, Isaacs III, John C., additional, Jackson Jr, Wallace C., additional, Jaffe, Daniel T., additional, Jahic, Jasmin, additional, Jahromi, Amir, additional, Jakobsen, Peter, additional, James, Bryan, additional, James, John C., additional, James, LeAndrea Rae, additional, Jamieson, William Brian, additional, Jandra, Raymond D., additional, Jayawardhana, Ray, additional, Jedrzejewski, Robert, additional, Jeffers, Basil S., additional, Jensen, Peter, additional, Joanne, Egges, additional, Johns, Alan T., additional, Johnson, Carl A., additional, Johnson, Eric L., additional, Johnson, Patricia, additional, Johnson, Phillip Stephen, additional, Johnson, Thomas K., additional, Johnson, Timothy W., additional, Johnstone, Doug, additional, Jollet, Delphine, additional, Jones, Danny P., additional, Jones, Gregory S., additional, Jones, Olivia C., additional, Jones, Ronald A., additional, Jones, Vicki, additional, Jordan, Ian J., additional, Jordan, Margaret E., additional, Jue, Reginald, additional, Jurkowski, Mark H., additional, Justis, Grant, additional, Justtanont, Kay, additional, Kaleida, Catherine C., additional, Kalirai, Jason S., additional, Kalmanson, Phillip Cabrales, additional, Kaltenegger, Lisa, additional, Kammerer, Jens, additional, Kan, Samuel K., additional, Kanarek, Graham Childs, additional, Kao, Shaw-Hong, additional, Karakla, Diane M., additional, Karl, Hermann, additional, Kassin, Susan A., additional, Kauffman, David D., additional, Kavanagh, Patrick, additional, Kelley, Leigh L., additional, Kelly, Douglas M., additional, Kendrew, Sarah, additional, Kennedy, Herbert V., additional, Kenny, Deborah A., additional, Keski-Kuha, Ritva A., additional, Keyes, Charles D., additional, Khan, Ali, additional, Kidwell, Richard C., additional, Kimble, Randy A., additional, King, James S., additional, King, Richard C., additional, Kinzel, Wayne M., additional, Kirk, Jeffrey R., additional, Kirkpatrick, Marc E., additional, Klaassen, Pamela, additional, Klingemann, Lana, additional, Klintworth, Paul U., additional, Knapp, Bryan Adam, additional, Knight, Scott, additional, Knollenberg, Perry J., additional, Knutsen, Daniel Mark, additional, Koehler, Robert, additional, Koekemoer, Anton M., additional, Kofler, Earl T., additional, Kontson, Vicki L., additional, Kovacs, Aiden Rose, additional, Kozhurina-Platais, Vera, additional, Krause, Oliver, additional, Kriss, Gerard A., additional, Krist, John, additional, Kristoffersen, Monica R., additional, Krogel, Claudia, additional, Krueger, Anthony P., additional, Kulp, Bernard A., additional, Kumari, Nimisha, additional, Kwan, Sandy W., additional, Kyprianou, Mark, additional, Labador, Aurora Gadiano, additional, Labiano, Álvaro, additional, Lafrenière, David, additional, Lagage, Pierre-Olivier, additional, Laidler, Victoria G., additional, Laine, Benoit, additional, Laird, Simon, additional, Lajoie, Charles-Philippe, additional, Lallo, Matthew D., additional, Lam, May Yen, additional, LaMassa, Stephanie Marie, additional, Lambros, Scott D., additional, Lampenfield, Richard Joseph, additional, Lander, Matthew Ed, additional, Langston, James Hutton, additional, Larson, Kirsten, additional, Larson, Melora, additional, LaVerghetta, Robert Joseph, additional, Law, David R., additional, Lawrence, Jon F., additional, Lee, David W., additional, Lee, Janice, additional, Lee, Yat-Ning Paul, additional, Leisenring, Jarron, additional, Leveille, Michael Dunlap, additional, Levenson, Nancy A., additional, Levi, Joshua S., additional, Levine, Marie B., additional, Lewis, Dan, additional, Lewis, Jake, additional, Lewis, Nikole, additional, Libralato, Mattia, additional, Lidon, Norbert, additional, Liebrecht, Paula Louisa, additional, Lightsey, Paul, additional, Lilly, Simon, additional, Lim, Frederick C., additional, Lim, Pey Lian, additional, Ling, Sai-Kwong, additional, Link, Lisa J., additional, Link, Miranda Nicole, additional, Lipinski, Jamie L., additional, Liu, XiaoLi, additional, Lo, Amy S., additional, Lobmeyer, Lynette, additional, Logue, Ryan M., additional, Long, Chris A., additional, Long, Douglas R., additional, Long, Ilana D., additional, Long, Knox S., additional, López-Caniego, Marcos, additional, Lotz, Jennifer M., additional, Love-Pruitt, Jennifer M., additional, Lubskiy, Michael, additional, Luers, Edward B., additional, Luetgens, Robert A., additional, Luevano, Annetta J., additional, G. Flores Lui, Sarah Marie, additional, Lund III, James M., additional, Lundquist, Ray A., additional, Lunine, Jonathan, additional, Lützgendorf, Nora, additional, Lynch, Richard J., additional, MacDonald, Alex J., additional, MacDonald, Kenneth, additional, Macias, Matthew J., additional, Macklis, Keith I., additional, Maghami, Peiman, additional, Maharaja, Rishabh Y., additional, Maiolino, Roberto, additional, Makrygiannis, Konstantinos G., additional, Malla, Sunita Giri, additional, Malumuth, Eliot M., additional, Manjavacas, Elena, additional, Marini, Andrea, additional, Marrione, Amanda, additional, Marston, Anthony, additional, Martel, André R, additional, Martin, Didier, additional, Martin, Peter G., additional, Martinez, Kristin L., additional, Maschmann, Marc, additional, Masci, Gregory L., additional, Masetti, Margaret E., additional, Maszkiewicz, Michael, additional, Matthews, Gary, additional, Matuskey, Jacob E., additional, McBrayer, Glen A., additional, McCarthy, Donald W., additional, McCaughrean, Mark J., additional, McClare, Leslie A., additional, McClare, Michael D., additional, McCloskey, John C., additional, McClurg, Taylore D., additional, McCoy, Martin, additional, McElwain, Michael W., additional, McGregor, Roy D., additional, McGuffey, Douglas B., additional, McKay, Andrew G., additional, McKenzie, William K., additional, McLean, Brian, additional, McMaster, Matthew, additional, McNeil, Warren, additional, De Meester, Wim, additional, Mehalick, Kimberly L., additional, Meixner, Margaret, additional, Meléndez, Marcio, additional, Menzel, Michael P., additional, Menzel, Michael T., additional, Merz, Matthew, additional, Mesterharm, David D., additional, Meyer, Michael R., additional, Meyett, Michele L., additional, Meza, Luis E., additional, Midwinter, Calvin, additional, Milam, Stefanie N., additional, Miller, Jay Todd, additional, Miller, William C., additional, Miskey, Cherie L., additional, Misselt, Karl, additional, Mitchell, Eileen P., additional, Mohan, Martin, additional, Montoya, Emily E., additional, Moran, Michael J., additional, Morishita, Takahiro, additional, Moro-Martín, Amaya, additional, Morrison, Debra L., additional, Morrison, Jane, additional, Morse, Ernie C., additional, Moschos, Michael, additional, Moseley, S. H., additional, Mosier, Gary E., additional, Mosner, Peter, additional, Mountain, Matt, additional, Muckenthaler, Jason S., additional, Mueller, Donald G., additional, Mueller, Migo, additional, Muhiem, Daniella, additional, Mühlmann, Prisca, additional, Mullally, Susan Elizabeth, additional, Mullen, Stephanie M., additional, Munger, Alan J, additional, Murphy, Jess, additional, Murray, Katherine T., additional, Muzerolle, James C., additional, Mycroft, Matthew, additional, Myers, Andrew, additional, Myers, Carey R., additional, R. Myers, Fred Richard, additional, Myers, Richard, additional, Myrick, Kaila, additional, Nagle, IV, Adrian F., additional, Nayak, Omnarayani, additional, Naylor, Bret, additional, Neff, Susan G., additional, Nelan, Edmund P., additional, Nella, John, additional, Nguyen, Duy Tuong, additional, Nguyen, Michael N., additional, Nickson, Bryony, additional, Nidhiry, John Joseph, additional, Niedner, Malcolm B., additional, Nieto-Santisteban, Maria, additional, Nikolov, Nikolay K., additional, Nishisaka, Mary Ann, additional, Noriega-Crespo, Alberto, additional, Nota, Antonella, additional, O’Mara, Robyn C., additional, Oboryshko, Michael, additional, O’Brien, Marcus B., additional, Ochs, William R., additional, Offenberg, Joel D., additional, Ogle, Patrick Michael, additional, Ohl, Raymond G., additional, Olmsted, Joseph Hamden, additional, Osborne, Shannon Barbara, additional, O’Shaughnessy, Brian Patrick, additional, Östlin, Göran, additional, O’Sullivan, Brian, additional, Otor, O. Justin, additional, Ottens, Richard, additional, Ouellette, Nathalie N.-Q., additional, Outlaw, Daria J., additional, Owens, Beverly A., additional, Pacifici, Camilla, additional, Page, James Christophe, additional, Paranilam, James G., additional, Park, Sang, additional, Parrish, Keith A., additional, Paschal, Laura, additional, Patapis, Polychronis, additional, Patel, Jignasha, additional, Patrick, Keith, additional, Pattishall Jr, Robert A., additional, Paul, Douglas William, additional, Paul, Shirley J., additional, Pauly, Tyler Andrew, additional, Pavlovsky, Cheryl M., additional, Peña-Guerrero, Maria, additional, Pedder, Andrew H., additional, Peek, Matthew Weldon, additional, Pelham, Patricia A., additional, Penanen, Konstantin, additional, Perriello, Beth A., additional, Perrin, Marshall D., additional, Perrine, Richard F., additional, Perrygo, Chuck, additional, Peslier, Muriel, additional, Petach, Michael, additional, Peterson, Karla A., additional, Pfarr, Tom, additional, Pierson, James M., additional, Pietraszkiewicz, Martin, additional, Pilchen, Guy, additional, Pipher, Judy L., additional, Pirzkal, Norbert, additional, Pitman, Joseph T., additional, Player, Danielle M., additional, Plesha, Rachel, additional, Plitzke, Anja, additional, Pohner, John A., additional, Poletis, Karyn Konstantin, additional, Pollizzi, Joseph A., additional, Polster, Ethan, additional, Pontius, James T., additional, Pontoppidan, Klaus, additional, Porges, Susana C., additional, Potter, Gregg D., additional, Prescott, Stephen, additional, Proffitt, Charles R., additional, Pueyo, Laurent, additional, Quispe Neira, Irma Aracely, additional, Radich, Armando, additional, Rager, Reiko T., additional, Rameau, Julien, additional, Ramey, Deborah D., additional, Alarcon, Rafael Ramos, additional, Rampini, Riccardo, additional, Rapp, Robert, additional, Rashford, Robert A., additional, Rauscher, Bernard J., additional, Ravindranath, Swara, additional, Rawle, Timothy, additional, Rawlings, Tynika N., additional, Ray, Tom, additional, Regan, Michael W., additional, Rehm, Brian, additional, Rehm, Kenneth D., additional, Reid, Neill, additional, Reis, Carl A., additional, Renk, Florian, additional, Reoch, Tom B., additional, Ressler, Michael, additional, Rest, Armin W., additional, Reynolds, Paul J., additional, Richon, Joel G., additional, Richon, Karen V., additional, Ridgaway, Michael, additional, Riedel, Adric Richard, additional, Rieke, George H., additional, Rieke, Marcia J., additional, Rifelli, Richard E., additional, Rigby, Jane R., additional, Riggs, Catherine S., additional, Ringel, Nancy J., additional, Ritchie, Christine E., additional, Rix, Hans-Walter, additional, Robberto, Massimo, additional, Robinson, Gregory L., additional, Robinson, Michael S., additional, Robinson, Orion, additional, Rock, Frank W., additional, Rodriguez, David R., additional, del Pino, Bruno Rodríguez, additional, Roellig, Thomas, additional, Rohrbach, Scott O., additional, Roman, Anthony J., additional, Romelfanger, Frederick J., additional, Romo Jr, Felipe P., additional, Rosales, Jose J., additional, Rose, Perry, additional, Roteliuk, Anthony F., additional, Roth, Marc N., additional, Rothwell, Braden Quinn, additional, Rouzaud, Sylvain, additional, Rowe, Jason, additional, Rowlands, Neil, additional, Roy, Arpita, additional, Royer, Pierre, additional, Rui, Chunlei, additional, Rumler, Peter, additional, Rumpl, William, additional, Russ, Melissa L., additional, Ryan, Michael B., additional, Ryan, Richard M., additional, Saad, Karl, additional, Sabata, Modhumita, additional, Sabatino, Rick, additional, Sabbi, Elena, additional, Sabelhaus, Phillip A., additional, Sabia, Stephen, additional, Sahu, Kailash C., additional, Saif, Babak N., additional, Salvignol, Jean-Christophe, additional, Samara-Ratna, Piyal, additional, Samuelson, Bridget S., additional, Sanders, Felicia A., additional, Sappington, Bradley, additional, Sargent, B. A., additional, Sauer, Arne, additional, Savadkin, Bruce J., additional, Sawicki, Marcin, additional, Schappell, Tina M., additional, Scheffer, Caroline, additional, Scheithauer, Silvia, additional, Scherer, Ron, additional, Schiff, Conrad, additional, Schlawin, Everett, additional, Schmeitzky, Olivier, additional, Schmitz, Tyler S., additional, Schmude, Donald J., additional, Schneider, Analyn, additional, Schreiber, Jürgen, additional, Schroeven-Deceuninck, Hilde, additional, Schultz, John J., additional, Schwab, Ryan, additional, Schwartz, Curtis H., additional, Scoccimarro, Dario, additional, Scott, John F., additional, Scott, Michelle B., additional, Seaton, Bonita L., additional, Seely, Bruce S., additional, Seery, Bernard, additional, Seidleck, Mark, additional, Sembach, Kenneth, additional, Shanahan, Clare Elizabeth, additional, Shaughnessy, Bryan, additional, Shaw, Richard A., additional, Shay, Christopher Michael, additional, Sheehan, Even, additional, Sheth, Kartik, additional, Shih, Hsin-Yi, additional, Shivaei, Irene, additional, Siegel, Noah, additional, Sienkiewicz, Matthew G., additional, Simmons, Debra D., additional, Simon, Bernard P., additional, Sirianni, Marco, additional, Sivaramakrishnan, Anand, additional, Slade, Jeffrey E., additional, Sloan, G. C., additional, Slocum, Christine E., additional, Slowinski, Steven E., additional, Smith, Corbett T., additional, Smith, Eric P., additional, Smith, Erin C., additional, Smith, Koby, additional, Smith, Robert, additional, Smith, Stephanie J., additional, Smolik, John L., additional, Soderblom, David R., additional, Sohn, Sangmo Tony, additional, Sokol, Jeff, additional, Sonneborn, George, additional, Sontag, Christopher D., additional, Sooy, Peter R., additional, Soummer, Remi, additional, Southwood, Dana M., additional, Spain, Kay, additional, Sparmo, Joseph, additional, Speer, David T., additional, Spencer, Richard, additional, Sprofera, Joseph D., additional, Stallcup, Scott S., additional, Stanley, Marcia K., additional, Stansberry, John A., additional, Stark, Christopher C., additional, Starr, Carl W., additional, Stassi, Diane Y., additional, Steck, Jane A., additional, Steeley, Christine D., additional, Stephens, Matthew A., additional, Stephenson, Ralph J., additional, Stewart, Alphonso C., additional, Stiavelli, Massimo, additional, Jr, Hervey Stockman, additional, Strada, Paolo, additional, Straughn, Amber N., additional, Streetman, Scott, additional, Strickland, David Kendal, additional, Strobele, Jingping F., additional, Stuhlinger, Martin, additional, Stys, Jeffrey Edward, additional, Such, Miguel, additional, Sukhatme, Kalyani, additional, Sullivan, Joseph F., additional, Sullivan, Pamela C., additional, Sumner, Sandra M., additional, Sun, Fengwu, additional, Sunnquist, Benjamin Dale, additional, Swade, Daryl Allen, additional, Swam, Michael S., additional, Swenton, Diane F., additional, Swoish, Robby A., additional, Tam Litten, Oi In, additional, Tamas, Laszlo, additional, Tao, Andrew, additional, Taylor, David K., additional, Taylor, Joanna M., additional, Plate, Maurice te, additional, Van Tea, Mason, additional, Teague, Kelly K., additional, Telfer, Randal C., additional, Temim, Tea, additional, Texter, Scott C., additional, Thatte, Deepashri G., additional, Thompson, Christopher Lee, additional, Thompson, Linda M., additional, Thomson, Shaun R., additional, Thronson, Harley, additional, Tierney, C. M., additional, Tikkanen, Tuomo, additional, Tinnin, Lee, additional, Tippet, William Thomas, additional, Todd, Connor William, additional, Tran, Hien D., additional, Trauger, John, additional, Trejo, Edwin Gregorio, additional, Vinh Truong, Justin Hoang, additional, Tsukamoto, Christine L., additional, Tufail, Yasir, additional, Tumlinson, Jason, additional, Tustain, Samuel, additional, Tyra, Harrison, additional, Ubeda, Leonardo, additional, Underwood, Kelli, additional, Uzzo, Michael A., additional, Vaclavik, Steven, additional, Valenduc, Frida, additional, Valenti, Jeff A., additional, Van Campen, Julie, additional, van de Wetering, Inge, additional, Van Der Marel, Roeland P., additional, van Haarlem, Remy, additional, Vandenbussche, Bart, additional, van Dishoeck, Ewine F., additional, Vanterpool, Dona D., additional, Vernoy, Michael R., additional, Vila Costas, Maria Begoña, additional, Volk, Kevin, additional, Voorzaat, Piet, additional, Voyton, Mark F., additional, Vydra, Ekaterina, additional, Waddy, Darryl J., additional, Waelkens, Christoffel, additional, Wahlgren, Glenn Michael, additional, Walker Jr, Frederick E., additional, Wander, Michel, additional, Warfield, Christine K., additional, Warner, Gerald, additional, Wasiak, Francis C., additional, Wasiak, Matthew F., additional, Wehner, James, additional, Weiler, Kevin R., additional, Weilert, Mark, additional, Weiss, Stanley B., additional, Wells, Martyn, additional, Welty, Alan D., additional, Wheate, Lauren, additional, Wheeler, Thomas P., additional, White, Christy L., additional, Whitehouse, Paul, additional, Whiteleather, Jennifer Margaret, additional, Whitman, William Russell, additional, Williams, Christina C., additional, Willmer, Christopher N. A., additional, Willott, Chris J., additional, Willoughby, Scott P., additional, Wilson, Andrew, additional, Wilson, Debra, additional, Wilson, Donna V., additional, Windhorst, Rogier, additional, Wislowski, Emily Christine, additional, Wolfe, David J., additional, Wolfe, Michael A., additional, Wolff, Schuyler, additional, Wondel, Amancio, additional, Woo, Cindy, additional, Woods, Robert T., additional, Worden, Elaine, additional, Workman, William, additional, Wright, Gillian S., additional, Wu, Carl, additional, Wu, Chi-Rai, additional, Wun, Dakin D., additional, Wymer, Kristen B., additional, Yadetie, Thomas, additional, Yan, Isabelle C., additional, Yang, Keith C., additional, Yates, Kayla L., additional, Yeager, Christopher R., additional, Yerger, Ethan John, additional, Young, Erick T., additional, Young, Gary, additional, Yu, Gene, additional, Yu, Susan, additional, Zak, Dean S., additional, Zeidler, Peter, additional, Zepp, Robert, additional, Zhou, Julia, additional, Zincke, Christian A., additional, Zonak, Stephanie, additional, and Zondag, Elisabeth, additional
Published: 2023
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180. A Reanalysis of theUltraviolet Extinction from Interstellar Dust in the Large Magellanic Cloud

Author: Misselt, K. A., Clayton, Geoffrey C., and Gordon, Karl D.
Subjects: Astrophysics
Abstract: We have reanalyzed the Large Magellanic Cloud's (LMC) ultraviolet (UV) extinction using data from the IUE final archive. Our new analysis takes advantage of the improved signal--to--noise of the IUE NEWSIPS reduction, the exclusion of stars with very low reddening, the careful selection of well matched comparison stars, and an analysis of the effects of Galactic foreground dust. Differences between the average extinction curves of the 30 Dor region and the rest of the LMC are reduced compared to previous studies. We find that there is a group of stars with very weak 2175 Ang. bumps that lie in or near the region occupied by the supergiant shell, LMC 2, on the southeast side of 30 Dor. The average extinction curves inside and outside LMC 2 show a very significant difference in 2175 Ang. bump strength, but their far--UV extinctions are similar. While it is unclear whether or not the extinction outside the LMC 2 region can be fit with the relation of Cardelli, Clayton and Mathis (CCM), sightlines near LMC 2 cannot be fit with CCM due to their weak 2175 Ang. bumps. While the extinction properties seen in the LMC lie within the range of properties seen in the Galaxy, the correlations of UV extinction properties with environment seen in the Galaxy do not appear to hold in the LMC., Comment: 29 pages, 10 figures, to be published in ApJ
Published: 1998
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181. Multiple incursion pathways for Helicoverpa armigera in Brazil show its genetic diversity spreading in a connected world

Author: Arnemann, Jonas Andre, Roxburgh, Stephen, Walsh, Tom, Guedes, Jerson, Gordon, Karl, Smagghe, Guy, and Tay, Wee Tek
Published: 2019
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182. Comparative Gene Expression Analysis of Immune-Related Cytokines in Riemerella anatipestifer-stimulated Philippine Banaba Native Chicken and Native Duck Embryonic Fibroblasts.

Author: Fernandez-Colorado, Cherry P., Desamero, Mark Joseph M., Salamat, Saubel Ezrael A., Torno, Gordon Karl Barbour M., Untalan, Kane Errol M., Kindipan, Kiariza V., Fatalla, John-John R., Linatoc, Ron Carlos R., and Tibar, Jennelyn Joyce D.
Subjects: MALLARD, CHICKENS, GENE expression, FIBROBLASTS, DUCKS
Abstract: Background: Studies on Philippine Banaba native chickens and Philippine Mallard ducks were generally focused on their production and management. However, little is known on their immune responses to pathogens like Riemerella anatipestifer (R. anatipestifer), one of the economically important infectious disease-causing pathogens in Philippine Banaba native chickens and Philippine Mallard ducks. Methods: Chicken and duck embryonic fibroblasts (CEFs and DEFs) isolated from 11-day old healthy embryos were stimulated with heat-inactivated R. anatipestifer for 4, 8 and 24 h. The cells were collected at each time point and subjected to qRT-PCR for gene expression analyses. Results: Comparative gene expression analyses of immune-related cytokines revealed that the ex- pression levels of IL-17A, IL-17F, IL-1ß and IL-6 were significantly upregulated in both CEFs and DEFs stimulated with heat-inactivated R. anatipestifer serotype 7. However, levels were higher in DEFs compared to the corresponding levels in heat-inactivated R. anatipestifer stimulated CEFs. On the other hand, IFN-γ, IL-2, IL-4 and IL-10 expression levels of stimulated DEFs were also upregulated. In CEFs, it is interesting to note that IFN-γ level was significantly downregulated at 24 h while upregulated in DEFs. Conclusion: Results showed that the Philippine Banaba native chickens and Mallard ducks are also susceptible to R. anatipestifer infection. [ABSTRACT FROM AUTHOR]
Published: 2024

183. PDRs4All: A JWST Early Release Science Program on Radiative Feedback from Massive Stars

Author: National Aeronautics and Space Administration (US), University of Maryland, University of Michigan, University of Toledo, Centre National de la Recherche Scientifique (France), Centre National D'Etudes Spatiales (France), Natural Sciences and Engineering Research Council of Canada, Ministerio de Ciencia e Innovación (España), German Research Foundation, Japan Society for the Promotion of Science, San Jose State University Research Foundation, Berné, Olivier [0000-0002-1686-8395], Habart, Émilie [0000-0001-9136-8043], Peeters, Els [0000-0002-2541-1602], Abergel, Alain [0000-0003-2364-2260], Bergin, Edwin A. [0000-0003-4179-6394], Bernard-Salas, Jeronimo [0000-0002-8452-8675], Bron, Emeric [0000-0003-1532-7818], Cami, Jan [0000-0002-2666-9234], Dartois, Emmanuel [0000-0003-1197-7143], Fuente, Asunción [0000-0001-6317-6343], Goicoechea, Javier R. [0000-0001-7046-4319], Gordon, Karl D. [0000-0001-5340-6774], Okada, Yoko [0000-0002-6838-6435], Onaka, Takashi [0000-0002-8234-6747], Robberto, Massimo [0000-0002-9573-3199], Röllig, Markus [0000-0001-6205-2242], Tielens, Alexander G.G.M. [0000-0003-0306-0028], Vicente, Sílvia [0000-0001-8973-0752], Wolfire, Mark G. [0000-0003-0030-9510], Alarcón, Felipe [0000-0002-2692-7862], Boersma, C. [0000-0002-4836-217X], Canin, Amélie [0000-0002-7830-6363], Chown, Ryan [0000-0001-8241-7704], Dicken, Daniel [0000-0003-0589-5969], Le Gal, Romane [0000-0003-1837-3772], Pound, Marc W. [0000-0002-7269-342X], Trahin, Boris [0000-0001-5875-5340], Sidhu, Ameek [0000-0003-3771-4990], Van De Putte, Dries [0000-0002-5895-8268], Cuadrado, Sara [0000-0002-7393-1813], Guilloteau, Claire [0000-0001-5800-9647], Maragkoudakis, Alexandros [0000-0003-2552-3871], Schefter, Bethany R. [0000-0001-5080-8030], Schirmer, Thiébaut [0000-0002-8086-4890], Aleman, Isabel [0000-0002-7989-9041], Allamandola, Louis [0000-0002-6049-4079], Auchettl, Rebecca [0000-0001-9296-0751], Antonio Baratta, Giuseppe [0000-0002-3688-160X], Bejaoui, Salma [0000-0001-8646-9464], Bera, Partha P. [0000-0003-0843-3209], Bilalbegović, Goranka [0000-0002-1058-6610], Black, John H. [0000-0001-7221-7207], Boulanger, Francois [0000-0003-1097-6042], Bouwman, Jordy [0000-0002-3615-1703], Brandl, Bernhard [0000-0001-9737-169X], Brünken, Sandra [0000-0001-7175-4828], Burkhardt, Andrew [0000-0003-0799-0927], Candian, Alessandra [0000-0002-5431-4449], Cernicharo, José [0000-0002-3518-2524], Chakraborty, Shubhadip [0000-0002-2982-6450], Champion, Jason [0000-0002-9256-8917], Colgan, Sean W.J. [0000-0001-6275-7437], Cooke, Ilsa R. [0000-0002-0850-7426], Coutens, Audrey [0000-0003-1805-3920], Cox, Nick L.J. [0000-0002-7926-4492], Demyk, Karine [0000-0002-5019-8700], Donovan Meyer, Jennifer [0000-0002-3106-7676], Engrand, Cécile [0000-0002-0396-5583], Foschino, Sacha [0000-0003-2455-2355], Gavilan, Lisseth [0000-0001-8645-8415], Gerin, Maryvonne [0000-0002-2418-7952], Godard, Marie [0000-0002-7276-4021], Gottlieb, Carl A. [0000-0003-2845-5317], Guillard, Pierre [0000-0002-2421-1350], Gusdorf, Antoine [0000-0002-0354-1684], Hartigan, Patrick [0000-0002-5380-549X], He, Jinhua [0000-0002-3938-4393], Herbst, Eric [0000-0002-4649-2536], Hornekaer, Liv [0000-0003-0828-3642], Janot-Pacheco, Eduardo [0000-0003-0079-3912], Joblin, Christine [0000-0003-1561-6118], Kaufman, Michael [0000-0002-2521-1985], Kemper, Francisca [0000-0003-2743-8240], Kendrew, Sarah [0000-0002-7612-0469], Kirsanova, Maria S. [0000-0003-4338-9055], Klaassen, Pamela [0000-0001-9443-0463], Knight, Collin [0000-0003-2968-3522], Kwok, Sun [0000-0001-7708-081X], Labiano, Álvaro [0000-0002-0690-8824], Lai, Thomas S.Y. [0000-0001-8490-6632], Lee, Timothy J. [0000-0002-2598-2237], Lefloch, Bertrand [0000-0002-9397-3826], Le Petit, Franck [0000-0001-8738-6724], Li, Aigen [0000-0002-1119-642X], Linz, Hendrik [0000-0002-8115-8437], MacKie, Cameron J. [0000-0003-2885-2021], Madden, Suzanne C. [0000-0003-3229-2899], Mascetti, Joëlle [0000-0002-8585-9118], McGuire, Brett A. [0000-0003-1254-4817], Merino, Pablo [0000-0002-0267-4020], Micelotta, Elisabetta R. [0000-0002-6555-5109], Morse, Jon A. [0000-0001-5895-2256], Berné, Olivier, Habart, Émilie, Peeters, Els, Abergel, Alain, Bergin, Edwin A., Bernard-Salas, Jeronimo, Bron, Emeric, Cami, Jan, Dartois, Emmanuel, Fuente, Asunción, Goicoechea, Javier R., Gordon, Karl D., Okada, Yoko, Onaka, Takashi, Robberto, Massimo, Röllig, Markus, Tielens, Alexander G.G.M., Vicente, Sílvia, Wolfire, Mark G., Alarcón, Felipe, Boersma, C., Canin, Amélie, Chown, Ryan, Dicken, Daniel, Languignon, David, Le Gal, Romane, Pound, Marc W., Trahin, Boris, Simmer, Thomas, Sidhu, Ameek, Van De Putte, Dries, Cuadrado, Sara, Guilloteau, Claire, Maragkoudakis, Alexandros, Schefter, Bethany R., Schirmer, Thiébaut, Cazaux, Stéphanie, Aleman, Isabel, Allamandola, Louis, Auchettl, Rebecca, Antonio Baratta, Giuseppe, Bejaoui, Salma, Bera, Partha P., Bilalbegović, Goranka, Black, John H., Boulanger, Francois, Bouwman, Jordy, Brandl, Bernhard, Brechignac, Philippe, Brünken, Sandra, Burkhardt, Andrew, Candian, Alessandra, Cernicharo, José, Chabot, Marin, Chakraborty, Shubhadip, Champion, Jason, Colgan, Sean W.J., Cooke, Ilsa R., Coutens, Audrey, Cox, Nick L.J., Demyk, Karine, Donovan Meyer, Jennifer, Engrand, Cécile, Foschino, Sacha, García-Lario, Pedro, Gavilan, Lisseth, Gerin, Maryvonne, Godard, Marie, Gottlieb, Carl A., Guillard, Pierre, Gusdorf, Antoine, Hartigan, Patrick, He, Jinhua, Herbst, Eric, Hornekaer, Liv, Jäger, Cornelia, Janot-Pacheco, Eduardo, Joblin, Christine, Kaufman, Michael, Kemper, Francisca, Kendrew, Sarah, Kirsanova, Maria S., Klaassen, Pamela, Knight, Collin, Kwok, Sun, Labiano, Álvaro, Lai, Thomas S.Y., Lee, Timothy J., Lefloch, Bertrand, Le Petit, Franck, Li, Aigen, Linz, Hendrik, MacKie, Cameron J., Madden, Suzanne C., Mascetti, Joëlle, McGuire, Brett A., Merino, Pablo, Micelotta, Elisabetta R., Misselt, Karl, Morse, Jon A., National Aeronautics and Space Administration (US), University of Maryland, University of Michigan, University of Toledo, Centre National de la Recherche Scientifique (France), Centre National D'Etudes Spatiales (France), Natural Sciences and Engineering Research Council of Canada, Ministerio de Ciencia e Innovación (España), German Research Foundation, Japan Society for the Promotion of Science, San Jose State University Research Foundation, Berné, Olivier [0000-0002-1686-8395], Habart, Émilie [0000-0001-9136-8043], Peeters, Els [0000-0002-2541-1602], Abergel, Alain [0000-0003-2364-2260], Bergin, Edwin A. [0000-0003-4179-6394], Bernard-Salas, Jeronimo [0000-0002-8452-8675], Bron, Emeric [0000-0003-1532-7818], Cami, Jan [0000-0002-2666-9234], Dartois, Emmanuel [0000-0003-1197-7143], Fuente, Asunción [0000-0001-6317-6343], Goicoechea, Javier R. [0000-0001-7046-4319], Gordon, Karl D. [0000-0001-5340-6774], Okada, Yoko [0000-0002-6838-6435], Onaka, Takashi [0000-0002-8234-6747], Robberto, Massimo [0000-0002-9573-3199], Röllig, Markus [0000-0001-6205-2242], Tielens, Alexander G.G.M. [0000-0003-0306-0028], Vicente, Sílvia [0000-0001-8973-0752], Wolfire, Mark G. [0000-0003-0030-9510], Alarcón, Felipe [0000-0002-2692-7862], Boersma, C. [0000-0002-4836-217X], Canin, Amélie [0000-0002-7830-6363], Chown, Ryan [0000-0001-8241-7704], Dicken, Daniel [0000-0003-0589-5969], Le Gal, Romane [0000-0003-1837-3772], Pound, Marc W. [0000-0002-7269-342X], Trahin, Boris [0000-0001-5875-5340], Sidhu, Ameek [0000-0003-3771-4990], Van De Putte, Dries [0000-0002-5895-8268], Cuadrado, Sara [0000-0002-7393-1813], Guilloteau, Claire [0000-0001-5800-9647], Maragkoudakis, Alexandros [0000-0003-2552-3871], Schefter, Bethany R. [0000-0001-5080-8030], Schirmer, Thiébaut [0000-0002-8086-4890], Aleman, Isabel [0000-0002-7989-9041], Allamandola, Louis [0000-0002-6049-4079], Auchettl, Rebecca [0000-0001-9296-0751], Antonio Baratta, Giuseppe [0000-0002-3688-160X], Bejaoui, Salma [0000-0001-8646-9464], Bera, Partha P. [0000-0003-0843-3209], Bilalbegović, Goranka [0000-0002-1058-6610], Black, John H. [0000-0001-7221-7207], Boulanger, Francois [0000-0003-1097-6042], Bouwman, Jordy [0000-0002-3615-1703], Brandl, Bernhard [0000-0001-9737-169X], Brünken, Sandra [0000-0001-7175-4828], Burkhardt, Andrew [0000-0003-0799-0927], Candian, Alessandra [0000-0002-5431-4449], Cernicharo, José [0000-0002-3518-2524], Chakraborty, Shubhadip [0000-0002-2982-6450], Champion, Jason [0000-0002-9256-8917], Colgan, Sean W.J. [0000-0001-6275-7437], Cooke, Ilsa R. [0000-0002-0850-7426], Coutens, Audrey [0000-0003-1805-3920], Cox, Nick L.J. [0000-0002-7926-4492], Demyk, Karine [0000-0002-5019-8700], Donovan Meyer, Jennifer [0000-0002-3106-7676], Engrand, Cécile [0000-0002-0396-5583], Foschino, Sacha [0000-0003-2455-2355], Gavilan, Lisseth [0000-0001-8645-8415], Gerin, Maryvonne [0000-0002-2418-7952], Godard, Marie [0000-0002-7276-4021], Gottlieb, Carl A. [0000-0003-2845-5317], Guillard, Pierre [0000-0002-2421-1350], Gusdorf, Antoine [0000-0002-0354-1684], Hartigan, Patrick [0000-0002-5380-549X], He, Jinhua [0000-0002-3938-4393], Herbst, Eric [0000-0002-4649-2536], Hornekaer, Liv [0000-0003-0828-3642], Janot-Pacheco, Eduardo [0000-0003-0079-3912], Joblin, Christine [0000-0003-1561-6118], Kaufman, Michael [0000-0002-2521-1985], Kemper, Francisca [0000-0003-2743-8240], Kendrew, Sarah [0000-0002-7612-0469], Kirsanova, Maria S. [0000-0003-4338-9055], Klaassen, Pamela [0000-0001-9443-0463], Knight, Collin [0000-0003-2968-3522], Kwok, Sun [0000-0001-7708-081X], Labiano, Álvaro [0000-0002-0690-8824], Lai, Thomas S.Y. [0000-0001-8490-6632], Lee, Timothy J. [0000-0002-2598-2237], Lefloch, Bertrand [0000-0002-9397-3826], Le Petit, Franck [0000-0001-8738-6724], Li, Aigen [0000-0002-1119-642X], Linz, Hendrik [0000-0002-8115-8437], MacKie, Cameron J. [0000-0003-2885-2021], Madden, Suzanne C. [0000-0003-3229-2899], Mascetti, Joëlle [0000-0002-8585-9118], McGuire, Brett A. [0000-0003-1254-4817], Merino, Pablo [0000-0002-0267-4020], Micelotta, Elisabetta R. [0000-0002-6555-5109], Morse, Jon A. [0000-0001-5895-2256], Berné, Olivier, Habart, Émilie, Peeters, Els, Abergel, Alain, Bergin, Edwin A., Bernard-Salas, Jeronimo, Bron, Emeric, Cami, Jan, Dartois, Emmanuel, Fuente, Asunción, Goicoechea, Javier R., Gordon, Karl D., Okada, Yoko, Onaka, Takashi, Robberto, Massimo, Röllig, Markus, Tielens, Alexander G.G.M., Vicente, Sílvia, Wolfire, Mark G., Alarcón, Felipe, Boersma, C., Canin, Amélie, Chown, Ryan, Dicken, Daniel, Languignon, David, Le Gal, Romane, Pound, Marc W., Trahin, Boris, Simmer, Thomas, Sidhu, Ameek, Van De Putte, Dries, Cuadrado, Sara, Guilloteau, Claire, Maragkoudakis, Alexandros, Schefter, Bethany R., Schirmer, Thiébaut, Cazaux, Stéphanie, Aleman, Isabel, Allamandola, Louis, Auchettl, Rebecca, Antonio Baratta, Giuseppe, Bejaoui, Salma, Bera, Partha P., Bilalbegović, Goranka, Black, John H., Boulanger, Francois, Bouwman, Jordy, Brandl, Bernhard, Brechignac, Philippe, Brünken, Sandra, Burkhardt, Andrew, Candian, Alessandra, Cernicharo, José, Chabot, Marin, Chakraborty, Shubhadip, Champion, Jason, Colgan, Sean W.J., Cooke, Ilsa R., Coutens, Audrey, Cox, Nick L.J., Demyk, Karine, Donovan Meyer, Jennifer, Engrand, Cécile, Foschino, Sacha, García-Lario, Pedro, Gavilan, Lisseth, Gerin, Maryvonne, Godard, Marie, Gottlieb, Carl A., Guillard, Pierre, Gusdorf, Antoine, Hartigan, Patrick, He, Jinhua, Herbst, Eric, Hornekaer, Liv, Jäger, Cornelia, Janot-Pacheco, Eduardo, Joblin, Christine, Kaufman, Michael, Kemper, Francisca, Kendrew, Sarah, Kirsanova, Maria S., Klaassen, Pamela, Knight, Collin, Kwok, Sun, Labiano, Álvaro, Lai, Thomas S.Y., Lee, Timothy J., Lefloch, Bertrand, Le Petit, Franck, Li, Aigen, Linz, Hendrik, MacKie, Cameron J., Madden, Suzanne C., Mascetti, Joëlle, McGuire, Brett A., Merino, Pablo, Micelotta, Elisabetta R., Misselt, Karl, and Morse, Jon A.
Abstract: Massive stars disrupt their natal molecular cloud material through radiative and mechanical feedback processes. These processes have profound effects on the evolution of interstellar matter in our Galaxy and throughout the universe, from the era of vigorous star formation at redshifts of 1-3 to the present day. The dominant feedback processes can be probed by observations of the Photo-Dissociation Regions (PDRs) where the far-ultraviolet photons of massive stars create warm regions of gas and dust in the neutral atomic and molecular gas. PDR emission provides a unique tool to study in detail the physical and chemical processes that are relevant for most of the mass in inter-and circumstellar media including diffuse clouds, proto-planetary disks, and molecular cloud surfaces, globules, planetary nebulae, and star-forming regions. PDR emission dominates the infrared (IR) spectra of star-forming galaxies. Most of the Galactic and extragalactic observations obtained with the James Webb Space Telescope (JWST) will therefore arise in PDR emission. In this paper we present an Early Release Science program using the MIRI, NIRSpec, and NIRCam instruments dedicated to the observations of an emblematic and nearby PDR: the Orion Bar. These early JWST observations will provide template data sets designed to identify key PDR characteristics in JWST observations. These data will serve to benchmark PDR models and extend them into the JWST era. We also present the Science-Enabling products that we will provide to the community. These template data sets and Science-Enabling products will guide the preparation of future proposals on star-forming regions in our Galaxy and beyond and will facilitate data analysis and interpretation of forthcoming JWST observations.
Published: 2022

184. The Panchromatic Hubble Andromeda Treasury. Progression of Large-Scale Star Formation Across Space and Time in M 31

Author: Gouliermis, Dimitrios A., Beerman, Lori C., Bianchi, Luciana, Dalcanton, Julianne J., Dolphin, Andrew E., Fouesneau, Morgan, Gordon, Karl D., Guhathakurta, Puragra, Kalirai, Jason, Lang, Dustin, Seth, Anil, Skillman, Evan, Weisz, Daniel R., Williams, Benjamin F., Freeman, Kenneth, editor, Elmegreen, Bruce, editor, Block, David, editor, and Woolway, Matthew, editor
Published: 2015
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185. The Science Performance of JWST as Characterized in Commissioning

Author: Rigby, Jane, primary, Perrin, Marshall, additional, McElwain, Michael, additional, Kimble, Randy, additional, Friedman, Scott, additional, Lallo, Matt, additional, Doyon, René, additional, Feinberg, Lee, additional, Ferruit, Pierre, additional, Glasse, Alistair, additional, Rieke, Marcia, additional, Rieke, George, additional, Wright, Gillian, additional, Willott, Chris, additional, Colon, Knicole, additional, Milam, Stefanie, additional, Neff, Susan, additional, Stark, Christopher, additional, Valenti, Jeff, additional, Abell, Jim, additional, Abney, Faith, additional, Abul-Huda, Yasin, additional, Scott Acton, D., additional, Adams, Evan, additional, Adler, David, additional, Aguilar, Jonathan, additional, Ahmed, Nasif, additional, Albert, Loïc, additional, Alberts, Stacey, additional, Aldridge, David, additional, Allen, Marsha, additional, Altenburg, Martin, additional, Álvarez-Márquez, Javier, additional, Alves de Oliveira, Catarina, additional, Andersen, Greg, additional, Anderson, Harry, additional, Anderson, Sara, additional, Argyriou, Ioannis, additional, Armstrong, Amber, additional, Arribas, Santiago, additional, Artigau, Etienne, additional, Arvai, Amanda, additional, Atkinson, Charles, additional, Bacon, Gregory, additional, Bair, Thomas, additional, Banks, Kimberly, additional, Barrientes, Jaclyn, additional, Barringer, Bruce, additional, Bartosik, Peter, additional, Bast, William, additional, Baudoz, Pierre, additional, Beatty, Thomas, additional, Bechtold, Katie, additional, Beck, Tracy, additional, Bergeron, Eddie, additional, Bergkoetter, Matthew, additional, Bhatawdekar, Rachana, additional, Birkmann, Stephan, additional, Blazek, Ronald, additional, Blome, Claire, additional, Boccaletti, Anthony, additional, Böker, Torsten, additional, Boia, John, additional, Bonaventura, Nina, additional, Bond, Nicholas, additional, Bosley, Kari, additional, Boucarut, Ray, additional, Bourque, Matthew, additional, Bouwman, Jeroen, additional, Bower, Gary, additional, Bowers, Charles, additional, Boyer, Martha, additional, Bradley, Larry, additional, Brady, Greg, additional, Braun, Hannah, additional, Breda, David, additional, Bresnahan, Pamela, additional, Bright, Stacey, additional, Britt, Christopher, additional, Bromenschenkel, Asa, additional, Brooks, Brian, additional, Brooks, Keira, additional, Brown, Bob, additional, Brown, Matthew, additional, Brown, Patricia, additional, Bunker, Andy, additional, Burger, Matthew, additional, Bushouse, Howard, additional, Cale, Steven, additional, Cameron, Alex, additional, Cameron, Peter, additional, Canipe, Alicia, additional, Caplinger, James, additional, Caputo, Francis, additional, Cara, Mihai, additional, Carey, Larkin, additional, Carniani, Stefano, additional, Carrasquilla, Maria, additional, Carruthers, Margaret, additional, Case, Michael, additional, Catherine, Riggs, additional, Chance, Don, additional, Chapman, George, additional, Charlot, Stéphane, additional, Charlow, Brian, additional, Chayer, Pierre, additional, Chen, Bin, additional, Cherinka, Brian, additional, Chichester, Sarah, additional, Chilton, Zack, additional, Chonis, Taylor, additional, Clampin, Mark, additional, Clark, Charles, additional, Clark, Kerry, additional, Coe, Dan, additional, Coleman, Benee, additional, Comber, Brian, additional, Comeau, Tom, additional, Connolly, Dennis, additional, Cooper, James, additional, Cooper, Rachel, additional, Coppock, Eric, additional, Correnti, Matteo, additional, Cossou, Christophe, additional, Coulais, Alain, additional, Coyle, Laura, additional, Cracraft, Misty, additional, Curti, Mirko, additional, Cuturic, Steven, additional, Davis, Katherine, additional, Davis, Michael, additional, Dean, Bruce, additional, DeLisa, Amy, additional, deMeester, Wim, additional, Dencheva, Nadia, additional, Dencheva, Nadezhda, additional, DePasquale, Joseph, additional, Deschenes, Jeremy, additional, Hunor Detre, Örs, additional, Diaz, Rosa, additional, Dicken, Dan, additional, DiFelice, Audrey, additional, Dillman, Matthew, additional, Dixon, William, additional, Doggett, Jesse, additional, Donaldson, Tom, additional, Douglas, Rob, additional, DuPrie, Kimberly, additional, Dupuis, Jean, additional, Durning, John, additional, Easmin, Nilufar, additional, Eck, Weston, additional, Edeani, Chinwe, additional, Egami, Eiichi, additional, Ehrenwinkler, Ralf, additional, Eisenhamer, Jonathan, additional, Eisenhower, Michael, additional, Elie, Michelle, additional, Elliott, James, additional, Elliott, Kyle, additional, Ellis, Tracy, additional, Engesser, Michael, additional, Espinoza, Nestor, additional, Etienne, Odessa, additional, Etxaluze, Mireya, additional, Falini, Patrick, additional, Feeney, Matthew, additional, Ferry, Malcolm, additional, Filippazzo, Joseph, additional, Fincham, Brian, additional, Fix, Mees, additional, Flagey, Nicolas, additional, Florian, Michael, additional, Flynn, Jim, additional, Fontanella, Erin, additional, Ford, Terrance, additional, Forshay, Peter, additional, Fox, Ori, additional, Franz, David, additional, Fu, Henry, additional, Fullerton, Alexander, additional, Galkin, Sergey, additional, Galyer, Anthony, additional, García Marín, Macarena, additional, Gardner, Jonathan P., additional, Gardner, Lisa, additional, Garland, Dennis, additional, Garrett, Bruce, additional, Gasman, Danny, additional, Gaspar, Andras, additional, Gaudreau, Daniel, additional, Gauthier, Peter, additional, Geers, Vincent, additional, Geithner, Paul, additional, Gennaro, Mario, additional, Giardino, Giovanna, additional, Girard, Julien, additional, Giuliano, Mark, additional, Glassmire, Kirk, additional, Glauser, Adrian, additional, Glazer, Stuart, additional, Godfrey, John, additional, Golimowski, David, additional, Gollnitz, David, additional, Gong, Fan, additional, Gonzaga, Shireen, additional, Gordon, Michael, additional, Gordon, Karl, additional, Goudfrooij, Paul, additional, Greene, Thomas, additional, Greenhouse, Matthew, additional, Grimaldi, Stefano, additional, Groebner, Andrew, additional, Grundy, Timothy, additional, Guillard, Pierre, additional, Gutman, Irvin, additional, Ha, Kong Q., additional, Haderlein, Peter, additional, Hagedorn, Andria, additional, Hainline, Kevin, additional, Haley, Craig, additional, Hami, Maryam, additional, Hamilton, Forrest, additional, Hammel, Heidi, additional, Hansen, Carl, additional, Harkins, Tom, additional, Harr, Michael, additional, Hart, Jessica, additional, Hart, Quyen, additional, Hartig, George, additional, Hashimoto, Ryan, additional, Haskins, Sujee, additional, Hathaway, William, additional, Havey, Keith, additional, Hayden, Brian, additional, Hecht, Karen, additional, Heller-Boyer, Chris, additional, Henriques, Caroline, additional, Henry, Alaina, additional, Hermann, Karl, additional, Hernandez, Scarlin, additional, Hesman, Brigette, additional, Hicks, Brian, additional, Hilbert, Bryan, additional, Hines, Dean, additional, Hoffman, Melissa, additional, Holfeltz, Sherie, additional, Holler, Bryan J., additional, Hoppa, Jennifer, additional, Hott, Kyle, additional, Howard, Joseph M., additional, Howard, Rick, additional, Hunter, Alexander, additional, Hunter, David, additional, Hurst, Brendan, additional, Husemann, Bernd, additional, Hustak, Leah, additional, Ilinca Ignat, Luminita, additional, Illingworth, Garth, additional, Irish, Sandra, additional, Jackson, Wallace, additional, Jahromi, Amir, additional, Jakobsen, Peter, additional, James, LeAndrea, additional, James, Bryan, additional, Januszewski, William, additional, Jenkins, Ann, additional, Jirdeh, Hussein, additional, Johnson, Phillip, additional, Johnson, Timothy, additional, Jones, Vicki, additional, Jones, Ron, additional, Jones, Danny, additional, Jones, Olivia, additional, Jordan, Ian, additional, Jordan, Margaret, additional, Jurczyk, Sarah, additional, Jurling, Alden, additional, Kaleida, Catherine, additional, Kalmanson, Phillip, additional, Kammerer, Jens, additional, Kang, Huijo, additional, Kao, Shaw-Hong, additional, Karakla, Diane, additional, Kavanagh, Patrick, additional, Kelly, Doug, additional, Kendrew, Sarah, additional, Kennedy, Herbert, additional, Kenny, Deborah, additional, Keski-kuha, Ritva, additional, Keyes, Charles, additional, Kidwell, Richard, additional, Kinzel, Wayne, additional, Kirk, Jeff, additional, Kirkpatrick, Mark, additional, Kirshenblat, Danielle, additional, Klaassen, Pamela, additional, Knapp, Bryan, additional, Scott Knight, J., additional, Knollenberg, Perry, additional, Koehler, Robert, additional, Koekemoer, Anton, additional, Kovacs, Aiden, additional, Kulp, Trey, additional, Kumari, Nimisha, additional, Kyprianou, Mark, additional, La Massa, Stephanie, additional, Labador, Aurora, additional, Labiano, Alvaro, additional, Lagage, Pierre-Olivier, additional, Lajoie, Charles-Philippe, additional, Lallo, Matthew, additional, Lam, May, additional, Lamb, Tracy, additional, Lambros, Scott, additional, Lampenfield, Richard, additional, Langston, James, additional, Larson, Kirsten, additional, Law, David, additional, Lawrence, Jon, additional, Lee, David, additional, Leisenring, Jarron, additional, Lepo, Kelly, additional, Leveille, Michael, additional, Levenson, Nancy, additional, Levine, Marie, additional, Levy, Zena, additional, Lewis, Dan, additional, Lewis, Hannah, additional, Libralato, Mattia, additional, Lightsey, Paul, additional, Link, Miranda, additional, Liu, Lily, additional, Lo, Amy, additional, Lockwood, Alexandra, additional, Logue, Ryan, additional, Long, Chris, additional, Long, Douglas, additional, Loomis, Charles, additional, Lopez-Caniego, Marcos, additional, Lorenzo Alvarez, Jose, additional, Love-Pruitt, Jennifer, additional, Lucy, Adrian, additional, Luetzgendorf, Nora, additional, Maghami, Peiman, additional, Maiolino, Roberto, additional, Major, Melissa, additional, Malla, Sunita, additional, Malumuth, Eliot, additional, Manjavacas, Elena, additional, Mannfolk, Crystal, additional, Marrione, Amanda, additional, Marston, Anthony, additional, Martel, André, additional, Maschmann, Marc, additional, Masci, Gregory, additional, Masciarelli, Michaela, additional, Maszkiewicz, Michael, additional, Mather, John, additional, McKenzie, Kenny, additional, McLean, Brian, additional, McMaster, Matthew, additional, Melbourne, Katie, additional, Meléndez, Marcio, additional, Menzel, Michael, additional, Merz, Kaiya, additional, Meyett, Michele, additional, Meza, Luis, additional, Miskey, Cherie, additional, Misselt, Karl, additional, Moller, Christopher, additional, Morrison, Jane, additional, Morse, Ernie, additional, Moseley, Harvey, additional, Mosier, Gary, additional, Mountain, Matt, additional, Mueckay, Julio, additional, Mueller, Michael, additional, Mullally, Susan, additional, Murphy, Jess, additional, Murray, Katherine, additional, Murray, Claire, additional, Mustelier, David, additional, Muzerolle, James, additional, Mycroft, Matthew, additional, Myers, Richard, additional, Myrick, Kaila, additional, Nanavati, Shashvat, additional, Nance, Elizabeth, additional, Nayak, Omnarayani, additional, Naylor, Bret, additional, Nelan, Edmund, additional, Nickson, Bryony, additional, Nielson, Alethea, additional, Nieto-Santisteban, Maria, additional, Nikolov, Nikolay, additional, Noriega-Crespo, Alberto, additional, O’Shaughnessy, Brian, additional, O’Sullivan, Brian, additional, Ochs, William, additional, Ogle, Patrick, additional, Oleszczuk, Brenda, additional, Olmsted, Joseph, additional, Osborne, Shannon, additional, Ottens, Richard, additional, Owens, Beverly, additional, Pacifici, Camilla, additional, Pagan, Alyssa, additional, Page, James, additional, Park, Sang, additional, Parrish, Keith, additional, Patapis, Polychronis, additional, Paul, Lee, additional, Pauly, Tyler, additional, Pavlovsky, Cheryl, additional, Pedder, Andrew, additional, Peek, Matthew, additional, Pena-Guerrero, Maria, additional, Penanen, Konstantin, additional, Perez, Yesenia, additional, Perna, Michele, additional, Perriello, Beth, additional, Phillips, Kevin, additional, Pietraszkiewicz, Martin, additional, Pinaud, Jean-Paul, additional, Pirzkal, Norbert, additional, Pitman, Joseph, additional, Piwowar, Aidan, additional, Platais, Vera, additional, Player, Danielle, additional, Plesha, Rachel, additional, Pollizi, Joe, additional, Polster, Ethan, additional, Pontoppidan, Klaus, additional, Porterfield, Blair, additional, Proffitt, Charles, additional, Pueyo, Laurent, additional, Pulliam, Christine, additional, Quirt, Brian, additional, Quispe Neira, Irma, additional, Ramos Alarcon, Rafael, additional, Ramsay, Leah, additional, Rapp, Greg, additional, Rapp, Robert, additional, Rauscher, Bernard, additional, Ravindranath, Swara, additional, Rawle, Timothy, additional, Regan, Michael, additional, Reichard, Timothy A., additional, Reis, Carl, additional, Ressler, Michael E., additional, Rest, Armin, additional, Reynolds, Paul, additional, Rhue, Timothy, additional, Richon, Karen, additional, Rickman, Emily, additional, Ridgaway, Michael, additional, Ritchie, Christine, additional, Rix, Hans-Walter, additional, Robberto, Massimo, additional, Robinson, Gregory, additional, Robinson, Michael, additional, Robinson, Orion, additional, Rock, Frank, additional, Rodriguez, David, additional, Rodriguez Del Pino, Bruno, additional, Roellig, Thomas, additional, Rohrbach, Scott, additional, Roman, Anthony, additional, Romelfanger, Fred, additional, Rose, Perry, additional, Roteliuk, Anthony, additional, Roth, Marc, additional, Rothwell, Braden, additional, Rowlands, Neil, additional, Roy, Arpita, additional, Royer, Pierre, additional, Royle, Patricia, additional, Rui, Chunlei, additional, Rumler, Peter, additional, Runnels, Joel, additional, Russ, Melissa, additional, Rustamkulov, Zafar, additional, Ryden, Grant, additional, Ryer, Holly, additional, Sabata, Modhumita, additional, Sabatke, Derek, additional, Sabbi, Elena, additional, Samuelson, Bridget, additional, Sapp, Benjamin, additional, Sappington, Bradley, additional, Sargent, B., additional, Sauer, Arne, additional, Scheithauer, Silvia, additional, Schlawin, Everett, additional, Schlitz, Joseph, additional, Schmitz, Tyler, additional, Schneider, Analyn, additional, Schreiber, Jürgen, additional, Schulze, Vonessa, additional, Schwab, Ryan, additional, Scott, John, additional, Sembach, Kenneth, additional, Shanahan, Clare, additional, Shaughnessy, Bryan, additional, Shaw, Richard, additional, Shawger, Nanci, additional, Shay, Christopher, additional, Sheehan, Evan, additional, Shen, Sharon, additional, Sherman, Allan, additional, Shiao, Bernard, additional, Shih, Hsin-Yi, additional, Shivaei, Irene, additional, Sienkiewicz, Matthew, additional, Sing, David, additional, Sirianni, Marco, additional, Sivaramakrishnan, Anand, additional, Skipper, Joy, additional, Sloan, G. C., additional, Slocum, Christine, additional, Slowinski, Steven, additional, Smith, Erin, additional, Smith, Eric, additional, Smith, Denise, additional, Smith, Corbett, additional, Snyder, Gregory, additional, Soh, Warren, additional, Tony Sohn, Sangmo, additional, Soto, Christian, additional, Spencer, Richard, additional, Stallcup, Scott, additional, Stansberry, John, additional, Starr, Carl, additional, Starr, Elysia, additional, Stewart, Alphonso, additional, Stiavelli, Massimo, additional, Straughn, Amber, additional, Strickland, David, additional, Stys, Jeff, additional, Summers, Francis, additional, Sun, Fengwu, additional, Sunnquist, Ben, additional, Swade, Daryl, additional, Swam, Michael, additional, Swaters, Robert, additional, Swoish, Robby, additional, Taylor, Joanna M., additional, Taylor, Rolanda, additional, Te Plate, Maurice, additional, Tea, Mason, additional, Teague, Kelly, additional, Telfer, Randal, additional, Temim, Tea, additional, Thatte, Deepashri, additional, Thompson, Christopher, additional, Thompson, Linda, additional, Thomson, Shaun, additional, Tikkanen, Tuomo, additional, Tippet, William, additional, Todd, Connor, additional, Toolan, Sharon, additional, Tran, Hien, additional, Trejo, Edwin, additional, Truong, Justin, additional, Tsukamoto, Chris, additional, Tustain, Samuel, additional, Tyra, Harrison, additional, Ubeda, Leonardo, additional, Underwood, Kelli, additional, Uzzo, Michael, additional, Van Campen, Julie, additional, Vandal, Thomas, additional, Vandenbussche, Bart, additional, Vila, Begoña, additional, Volk, Kevin, additional, Wahlgren, Glenn, additional, Waldman, Mark, additional, Walker, Chanda, additional, Wander, Michel, additional, Warfield, Christine, additional, Warner, Gerald, additional, Wasiak, Matthew, additional, Watkins, Mitchell, additional, Weaver, Andrew, additional, Weilert, Mark, additional, Weiser, Nick, additional, Weiss, Ben, additional, Weissman, Sarah, additional, Welty, Alan, additional, West, Garrett, additional, Wheate, Lauren, additional, Wheatley, Elizabeth, additional, Wheeler, Thomas, additional, White, Rick, additional, Whiteaker, Kevin, additional, Whitehouse, Paul, additional, Whiteleather, Jennifer, additional, Whitman, William, additional, Williams, Christina, additional, Willmer, Christopher, additional, Willoughby, Scott, additional, Wilson, Andrew, additional, Wirth, Gregory, additional, Wislowski, Emily, additional, Wolf, Erin, additional, Wolfe, David, additional, Wolff, Schuyler, additional, Workman, Bill, additional, Wright, Ray, additional, Wu, Carl, additional, Wu, Rai, additional, Wymer, Kristen, additional, Yates, Kayla, additional, Yeager, Christopher, additional, Yeates, Jared, additional, Yerger, Ethan, additional, Yoon, Jinmi, additional, Young, Alice, additional, Yu, Susan, additional, Zak, Dean, additional, Zeidler, Peter, additional, Zhou, Julia, additional, Zielinski, Thomas, additional, Zincke, Cristian, additional, and Zonak, Stephanie, additional
Published: 2023
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186. The Mid-infrared Instrument for JWST and Its In-flight Performance

Author: Wright, Gillian S., primary, Rieke, George H., additional, Glasse, Alistair, additional, Ressler, Michael, additional, García Marín, Macarena, additional, Aguilar, Jonathan, additional, Alberts, Stacey, additional, Álvarez-Márquez, Javier, additional, Argyriou, Ioannis, additional, Banks, Kimberly, additional, Baudoz, Pierre, additional, Boccaletti, Anthony, additional, Bouchet, Patrice, additional, Bouwman, Jeroen, additional, Brandl, Bernard R., additional, Breda, David, additional, Bright, Stacey, additional, Cale, Steven, additional, Colina, Luis, additional, Cossou, Christophe, additional, Coulais, Alain, additional, Cracraft, Misty, additional, De Meester, Wim, additional, Dicken, Daniel, additional, Engesser, Michael, additional, Etxaluze, Mireya, additional, Fox, Ori D., additional, Friedman, Scott, additional, Fu, Henry, additional, Gasman, Danny, additional, Gáspár, András, additional, Gastaud, René, additional, Geers, Vincent, additional, Glauser, Adrian Michael, additional, Gordon, Karl D., additional, Greene, Thomas, additional, Greve, Thomas R., additional, Grundy, Timothy, additional, Güdel, Manuel, additional, Guillard, Pierre, additional, Haderlein, Peter, additional, Hashimoto, Ryan, additional, Henning, Thomas, additional, Hines, Dean, additional, Holler, Bryan, additional, Detre, Örs Hunor, additional, Jahromi, Amir, additional, James, Bryan, additional, Jones, Olivia C., additional, Justtanont, Kay, additional, Kavanagh, Patrick, additional, Kendrew, Sarah, additional, Klaassen, Pamela, additional, Krause, Oliver, additional, Labiano, Alvaro, additional, Lagage, Pierre-Olivier, additional, Lambros, Scott, additional, Larson, Kirsten, additional, Law, David, additional, Lee, David, additional, Libralato, Mattia, additional, Alverez, Jose Lorenzo, additional, Meixner, Margaret, additional, Morrison, Jane, additional, Mueller, Migo, additional, Murray, Katherine, additional, Mycroft, Matthew, additional, Myers, Richard, additional, Nayak, Omnarayani, additional, Naylor, Bret, additional, Nickson, Bryony, additional, Noriega-Crespo, Alberto, additional, Östlin, Göran, additional, O’Sullivan, Brian, additional, Ottens, Richard, additional, Patapis, Polychronis, additional, Penanen, Konstantin, additional, Pietraszkiewicz, Martin, additional, Ray, Tom, additional, Regan, Michael, additional, Roteliuk, Anthony, additional, Royer, Pierre, additional, Samara-Ratna, Piyal, additional, Samuelson, Bridget, additional, Sargent, Beth A., additional, Scheithauer, Silvia, additional, Schneider, Analyn, additional, Schreiber, Jürgen, additional, Shaughnessy, Bryan, additional, Sheehan, Evan, additional, Shivaei, Irene, additional, Sloan, G. C., additional, Tamas, Laszlo, additional, Teague, Kelly, additional, Temim, Tea, additional, Tikkanen, Tuomo, additional, Tustain, Samuel, additional, van Dishoeck, Ewine F., additional, Vandenbussche, Bart, additional, Weilert, Mark, additional, Whitehouse, Paul, additional, and Wolff, Schuyler, additional
Published: 2023
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187. The Quest for the Missing Dust. II. Two Orders of Magnitude of Evolution in the Dust-to-gas Ratio Resolved within Local Group Galaxies

Author: Clark, Christopher J. R., primary, Roman-Duval, Julia C., additional, Gordon, Karl D., additional, Bot, Caroline, additional, Smith, Matthew W. L., additional, and Hagen, Lea M. Z., additional
Published: 2023
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188. Formation of the methyl cation by photochemistry in a protoplanetary disk

Author: Centre National D'Etudes Spatiales (France), Centre National de la Recherche Scientifique (France), Ministerio de Ciencia e Innovación (España), University of Ontario, Canadian Space Agency, National Research Council of Canada, German Research Foundation, European Commission, San Jose State University Research Foundation, Japan Society for the Promotion of Science, Berné, Olivier [0000-0002-1686-8395], Martin-Drumel, Marie Aline [0000-0002-5460-4294], Schroetter, Ilane [0000-0002-1099-7401], Goicoechea, Javier R. [0000-0001-7046-4319], Jacovella, Ugo [0000-0003-2152-261X], Gans, Bérenger [0000-0001-9658-2436], Dartois, Emmanuel [0000-0003-1197-7143], Coudert, Laurent H. [0000-0003-0498-6957], Bergin, Edwin [0000-0003-4179-6394], #NODATA#, Cami, Jan [0000-0002-2666-9234], Roueff, Evelyne [0000-0002-4949-8562], Black, John H. [0000-0001-7221-7207], Asvany, Oskar [0000-0003-2995-0803], Peeters, Els [0000-0002-2541-1602], Canin, Amelie [0000-0002-7830-6363], Trahin, Boris [0000-0001-5875-5340], Joblin, Christine [0000-0003-1561-6118], Schlemmer, Stephan [0000-0002-1421-7281], Cernicharo, José [0000-0002-3518-2524], Bernard-Salas, Jeronimo [0000-0002-8452-8675], Boersma, Christiaan [0000-0002-4836-217X], Cuadrado, Sara [0000-0002-7393-1813], Dicken, Daniel [0000-0003-0589-5969], Elyajouri, Meriem [0000-0002-6086-2337], Fuente, Asunción [0000-0001-6317-6343], Le Gal, Romane [0000-0003-1837-3772], Okada, Yoko [0000-0002-6838-6435], Onaka, Takashi [0000-0002-8234-6747], Pound, Marc W. [0000-0002-7269-342X], Röllig, Markus [0000-0001-6205-2242], Schefter, Bethany [0000-0001-5080-8030], Tabone, Benoit [0000-0002-1103-3225], Van De Putte, Dries [0000-0002-5895-8268], Vicente, Sílvia [0000-0001-8973-0752], Berné, Olivier, Martin-Drumel, Marie Aline, Schroetter, Ilane, Goicoechea, Javier R., Jacovella, Ugo, Gans, Bérenger, Dartois, Emmanuel, Coudert, Laurent H., Bergin, Edwin, Alarcon, Felipe, Cami, Jan, Roueff, Evelyne, Black, John H., Asvany, Oskar, Habart, Emilie, Peeters, Els, Canin, Amelie, Trahin, Boris, Joblin, Christine, Schlemmer, Stephan, Thorwirth, Sven, Cernicharo, José, Gerin, Maryvonne, Tielens, Alexander, Zannese, Marion, Abergel, Alain, Bernard-Salas, Jeronimo, Boersma, Christiaan, Bron, Emeric, Chown, Ryan, Cuadrado, Sara, Dicken, Daniel, Elyajouri, Meriem, Fuente, Asunción, Gordon, Karl D., Issa, Lina, Kannavou, Olga, Khan, Baria, Lacinbala, Ozan, Languignon, David, Le Gal, Romane, Maragkoudakis, Alexandros, Meshaka, Raphael, Okada, Yoko, Onaka, Takashi, Pasquini, Sofia, Pound, Marc W., Robberto, Massimo, Röllig, Markus, Schefter, Bethany, Schirmer, Thiébaut, Sidhu, Ameek, Tabone, Benoit, Van De Putte, Dries, Vicente, Sílvia, Wolfire, Mark G., Centre National D'Etudes Spatiales (France), Centre National de la Recherche Scientifique (France), Ministerio de Ciencia e Innovación (España), University of Ontario, Canadian Space Agency, National Research Council of Canada, German Research Foundation, European Commission, San Jose State University Research Foundation, Japan Society for the Promotion of Science, Berné, Olivier [0000-0002-1686-8395], Martin-Drumel, Marie Aline [0000-0002-5460-4294], Schroetter, Ilane [0000-0002-1099-7401], Goicoechea, Javier R. [0000-0001-7046-4319], Jacovella, Ugo [0000-0003-2152-261X], Gans, Bérenger [0000-0001-9658-2436], Dartois, Emmanuel [0000-0003-1197-7143], Coudert, Laurent H. [0000-0003-0498-6957], Bergin, Edwin [0000-0003-4179-6394], #NODATA#, Cami, Jan [0000-0002-2666-9234], Roueff, Evelyne [0000-0002-4949-8562], Black, John H. [0000-0001-7221-7207], Asvany, Oskar [0000-0003-2995-0803], Peeters, Els [0000-0002-2541-1602], Canin, Amelie [0000-0002-7830-6363], Trahin, Boris [0000-0001-5875-5340], Joblin, Christine [0000-0003-1561-6118], Schlemmer, Stephan [0000-0002-1421-7281], Cernicharo, José [0000-0002-3518-2524], Bernard-Salas, Jeronimo [0000-0002-8452-8675], Boersma, Christiaan [0000-0002-4836-217X], Cuadrado, Sara [0000-0002-7393-1813], Dicken, Daniel [0000-0003-0589-5969], Elyajouri, Meriem [0000-0002-6086-2337], Fuente, Asunción [0000-0001-6317-6343], Le Gal, Romane [0000-0003-1837-3772], Okada, Yoko [0000-0002-6838-6435], Onaka, Takashi [0000-0002-8234-6747], Pound, Marc W. [0000-0002-7269-342X], Röllig, Markus [0000-0001-6205-2242], Schefter, Bethany [0000-0001-5080-8030], Tabone, Benoit [0000-0002-1103-3225], Van De Putte, Dries [0000-0002-5895-8268], Vicente, Sílvia [0000-0001-8973-0752], Berné, Olivier, Martin-Drumel, Marie Aline, Schroetter, Ilane, Goicoechea, Javier R., Jacovella, Ugo, Gans, Bérenger, Dartois, Emmanuel, Coudert, Laurent H., Bergin, Edwin, Alarcon, Felipe, Cami, Jan, Roueff, Evelyne, Black, John H., Asvany, Oskar, Habart, Emilie, Peeters, Els, Canin, Amelie, Trahin, Boris, Joblin, Christine, Schlemmer, Stephan, Thorwirth, Sven, Cernicharo, José, Gerin, Maryvonne, Tielens, Alexander, Zannese, Marion, Abergel, Alain, Bernard-Salas, Jeronimo, Boersma, Christiaan, Bron, Emeric, Chown, Ryan, Cuadrado, Sara, Dicken, Daniel, Elyajouri, Meriem, Fuente, Asunción, Gordon, Karl D., Issa, Lina, Kannavou, Olga, Khan, Baria, Lacinbala, Ozan, Languignon, David, Le Gal, Romane, Maragkoudakis, Alexandros, Meshaka, Raphael, Okada, Yoko, Onaka, Takashi, Pasquini, Sofia, Pound, Marc W., Robberto, Massimo, Röllig, Markus, Schefter, Bethany, Schirmer, Thiébaut, Sidhu, Ameek, Tabone, Benoit, Van De Putte, Dries, Vicente, Sílvia, and Wolfire, Mark G.
Abstract: Forty years ago, it was proposed that gas-phase organic chemistry in the interstellar medium can be initiated by the methyl cation CH3+ (refs. 1–3), but so far it has not been observed outside the Solar System 4,5. Alternative routes involving processes on grain surfaces have been invoked 6,7. Here we report James Webb Space Telescope observations of CH3+ in a protoplanetary disk in the Orion star-forming region. We find that gas-phase organic chemistry is activated by ultraviolet irradiation.
Published: 2023

189. Far-ultraviolet Dust Extinction and Molecular Hydrogen in the Diffuse Milky Way Interstellar Medium

Author: Van De Putte, Dries, primary, Cartledge, Stefan I. B., additional, Gordon, Karl D., additional, Clayton, Geoffrey C., additional, and Roman-Duval, Julia, additional
Published: 2023
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190. Betatetravirus‡ : Tetraviridae

Author: Hanzlik, Terry, Gordon, Karl H., Tidona, Christian, editor, and Darai, Gholamreza, editor
Published: 2011
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191. The JWST Early Release Observations

Author: Pontoppidan, Klaus M., primary, Barrientes, Jaclyn, additional, Blome, Claire, additional, Braun, Hannah, additional, Brown, Matthew, additional, Carruthers, Margaret, additional, Coe, Dan, additional, DePasquale, Joseph, additional, Espinoza, Néstor, additional, Marin, Macarena Garcia, additional, Gordon, Karl D., additional, Henry, Alaina, additional, Hustak, Leah, additional, James, Andi, additional, Jenkins, Ann, additional, Koekemoer, Anton M., additional, LaMassa, Stephanie, additional, Law, David, additional, Lockwood, Alexandra, additional, Moro-Martin, Amaya, additional, Mullally, Susan E., additional, Pagan, Alyssa, additional, Player, Dani, additional, Proffitt, Charles, additional, Pulliam, Christine, additional, Ramsay, Leah, additional, Ravindranath, Swara, additional, Reid, Neill, additional, Robberto, Massimo, additional, Sabbi, Elena, additional, Ubeda, Leonardo, additional, Balogh, Michael, additional, Flanagan, Kathryn, additional, Gardner, Jonathan, additional, Hasan, Hashima, additional, Meinke, Bonnie, additional, and Nota, Antonella, additional
Published: 2022
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192. SINGS OBSERVATIONS OF SPIRAL GALAXIES : Evidence for secular evolution

Author: Regan, Michael, Thornley, Michele D., Vogel, Stuart N., Sheth, Kartik, Draine, Bruce T., Hollenbach, David J., Meyer, Martin, Dale, Daniel A., Engelbracht, Charles W., Kennicutt, Robert C., Jr., Armus, Lee, Calzetti, Daniela, Gordon, Karl D., Helou, George, Leitherer, Claus, Malhotra, Sangeeta, Rieke, George H., Rieke, Marcia J., and DE JONG, R. S., editor
Published: 2007
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193. ABC transporter mis-splicing associated with resistance to Bt toxin Cry2Ab in laboratory- and field-selected pink bollworm

Author: Mathew, Lolita G., Ponnuraj, Jeyakumar, Mallappa, Bheemanna, Chowdary, Lingutla R., Zhang, Jianwei, Tay, Wee Tek, Walsh, Thomas K., Gordon, Karl H. J., Heckel, David G., Downes, Sharon, Carrière, Yves, Li, Xianchun, Tabashnik, Bruce E., and Fabrick, Jeffrey A.
Published: 2018
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194. Row and column artefacts in JWST MIRI’s Si:As blocked impurity band detectors

Author: Dicken, Daniel, primary, Rieke, George H., additional, Ressler, Michael E., additional, Morrison, Jane E., additional, Garcia-Marin, Macarena, additional, Argyriou, Iaonnis, additional, Gordon, Karl D., additional, Regan, Michael W., additional, Cossou, Christophe, additional, Gaspaar, Andras, additional, Glasse, Alistair, additional, Guillard, Pierre, additional, Labiano, Alvaro, additional, and Wright, Gillian, additional
Published: 2022
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195. METAL: The Metal Evolution, Transport, and Abundance in the Large Magellanic Cloud Hubble Program. IV. Calibration of Dust Depletions versus Abundance Ratios in the Milky Way and Magellanic Clouds and Application to Damped Lyα Systems

Author: Roman-Duval, Julia, primary, Jenkins, Edward B., additional, Tchernyshyov, Kirill, additional, Clark, Christopher J. R., additional, Cia, Annalisa De, additional, Gordon, Karl D., additional, Hamanowicz, Aleksandra, additional, Lebouteiller, Vianney, additional, Rafelski, Marc, additional, Sandstrom, Karin, additional, Werk, Jessica, additional, and Merica-Jones, Petia Yanchulova, additional
Published: 2022
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196. How Do Spitzer IRAC Fluxes Compare to HST CALSPEC?

Author: Bohlin, Ralph C., primary, Krick, Jessica E., additional, Gordon, Karl D., additional, and Hubeny, Ivan, additional
Published: 2022
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197. The Sings View of Barred Galaxies

Author: Regan, Michael W., Thornley, Michele D., Bendo, George J., Draine, Bruce T., Li, Aigen, Dale, Daniel A., Engelbracht, Charles W., Kennicutt, Robert C., Armus, Lee, Calzetti, Daniela, Gordon, Karl D., Helou, George, Hollenbach, David J., Jarrett, Thomas H., Kewley, Lisa J., Leitherer, Claus, Malhotra, Sangeeta, Meyer, Martin, Misselt, Karl A., Morrison, Jane E., Murphy, Eric J., Muzerolle, James, Rieke, George H., Rieke, Marcia J., Roussel, Helene, Smith, John-David T., Walter, Fabian, Block, David L., editor, Puerari, Ivânio, editor, Freeman, Kenneth C., editor, Groess, Robert, editor, and Block, Elizabeth K., editor
Published: 2004
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198. Betatetravirus : Tetraviridae

Author: Hanzlik, Terry, Gordon, Karl H., Tidona, Christian A., editor, Darai, Gholamreza, editor, and Büchen-Osmond, Cornelia, editor
Published: 2001
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199. The evolutionary process of invasion in the fall armyworm (Spodoptera frugiperda)

Author: Yainna Kumarihami, Sudeeptha, Tay, Wee Tek, Durand, Karine, Fiteni, Estelle, Hilliou, Frédérique, Legeai, Fabrice, Clamens, Anne-Laure, Gimenez, Sylvie, Asokan, R., Kalleshwaraswamy, C.M., Deshmukh, Sharanabasappa S., Meagher Jr., Robert L., Blanco, Carlos A., Silvie, Pierre, Brévault, Thierry, Dassou, Gbèblonoudo Anicet, Kergoat, Gael J., Walsh, Thomas, Gordon, Karl H.J., Nègre, Nicolas, D'Alençon, Emmanuelle, Nam, Kiwoong, Yainna Kumarihami, Sudeeptha, Tay, Wee Tek, Durand, Karine, Fiteni, Estelle, Hilliou, Frédérique, Legeai, Fabrice, Clamens, Anne-Laure, Gimenez, Sylvie, Asokan, R., Kalleshwaraswamy, C.M., Deshmukh, Sharanabasappa S., Meagher Jr., Robert L., Blanco, Carlos A., Silvie, Pierre, Brévault, Thierry, Dassou, Gbèblonoudo Anicet, Kergoat, Gael J., Walsh, Thomas, Gordon, Karl H.J., Nègre, Nicolas, D'Alençon, Emmanuelle, and Nam, Kiwoong
Abstract: The fall armyworm (FAW; Spodoptera frugiperda) is one of the major agricultural pest insects. FAW is native to the Americas, and its invasion was first reported in West Africa in 2016. Then it quickly spread through Africa, Asia, and Oceania, becoming one of the main threats to corn production. We analyzed whole genome sequences of 177 FAW individuals from 12 locations on four continents to infer evolutionary processes of invasion. Principal component analysis from the TPI gene and whole genome sequences shows that invasive FAW populations originated from the corn strain. Ancestry coefficient and phylogenetic analyses from the nuclear genome indicate that invasive populations are derived from a single ancestry, distinct from native populations, while the mitochondrial phylogenetic tree supports the hypothesis of multiple introductions. Adaptive evolution specific to invasive populations was observed in detoxification, chemosensory, and digestion genes. We concluded that extant invasive FAW populations originated from the corn strain with potential contributions of adaptive evolution.
Published: 2022

200. The James Webb Space Telescope Absolute Flux Calibration. I. Program Design and Calibrator Stars

Author: Gordon, Karl D., primary, Bohlin, Ralph, additional, Sloan, G. C., additional, Rieke, George, additional, Volk, Kevin, additional, Boyer, Martha, additional, Muzerolle, James, additional, Schlawin, Everett, additional, Deustua, Susana E., additional, Hines, Dean C., additional, Kraemer, Kathleen E., additional, Mullally, Susan E., additional, and Su, Kate Y. L., additional
Published: 2022
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