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1. Witnessing the onset of Reionisation via Lyman-$\alpha$ emission at redshift 13

Author: Witstok, Joris, Jakobsen, Peter, Maiolino, Roberto, Helton, Jakob M., Johnson, Benjamin D., Robertson, Brant E., Tacchella, Sandro, Cameron, Alex J., Smit, Renske, Bunker, Andrew J., Saxena, Aayush, Sun, Fengwu, Arribas, Santiago, Baker, William M., Bhatawdekar, Rachana, Boyett, Kristan, Cargile, Phillip A., Carniani, Stefano, Charlot, Stéphane, Chevallard, Jacopo, Curti, Mirko, Curtis-Lake, Emma, D'Eugenio, Francesco, Eisenstein, Daniel J., Hainline, Kevin N., Jones, Gareth C., Kumari, Nimisha, Maseda, Michael V., Pérez-González, Pablo G., Rinaldi, Pierluigi, Scholtz, Jan, Übler, Hannah, Williams, Christina C., Willmer, Christopher N. A., Willott, Chris, and Zhu, Yongda
Subjects: Astrophysics - Astrophysics of Galaxies
Abstract: $\require{mediawiki-texvc}$Cosmic Reionisation commenced when ultraviolet (UV) radiation produced in the first galaxies began illuminating the cold, neutral gas that filled the primordial Universe. Recent James Webb Space Telescope (JWST) observations have shown that surprisingly UV-bright galaxies were in place beyond redshift $z = 14$, when the Universe was less than 300 Myr old. Smooth turnovers of their UV continua have been interpreted as damping-wing absorption of Lyman-$\alpha$ (Ly$\alpha$), the principal hydrogen transition. However, spectral signatures encoding crucial properties of these sources, such as their emergent radiation field, largely remain elusive. Here we report spectroscopy from the JWST Advanced Deep Extragalactic Survey (JADES) of a galaxy at redshift $z = 13.0$ that reveal a singular, bright emission line unambiguously identified as Ly$\alpha$, in addition to a smooth turnover. We observe an equivalent width of $\text{EW}_\mathrm{Ly\alpha} > 40 \, \AA$ (rest frame), previously only seen at $z < 9$ where the intervening intergalactic medium (IGM) becomes increasingly ionised. Together with a very blue UV continuum, the Ly$\alpha$ line indicates the galaxy is a prolific producer of ionising photons, a significant fraction of which may escape. This suggests it resides in an early reionised region preventing complete extinction of Ly$\alpha$, thus shedding new light on the nature of the earliest galaxies and the onset of Reionisation only 330 Myr after the Big Bang., Comment: 19 pages, 9 figures, 3 tables. Comments welcome
Published: 2024

2. JADES: The star-formation and chemical enrichment history of a luminous galaxy at z~9.43 probed by ultra-deep JWST/NIRSpec spectroscopy

Author: Curti, Mirko, Witstok, Joris, Jakobsen, Peter, Kobayashi, Chiaki, Curtis-Lake, Emma, Hainline, Kevin, Ji, Xihan, D'Eugenio, Francesco, Chevallard, Jacopo, Maiolino, Roberto, Scholtz, Jan, Carniani, Stefano, Arribas, Santiago, Baker, William M., Bhatawdekar, Rachana, Boyett, Kristan, Bunker, Andrew J., Cameron, Alex, Cargile, Phillip A., Charlot, Stephane, Eisenstein, Daniel J., Ji, Zhiyuan, Johnson, Benjamin D., Kumari, Nimisha, Maseda, Michael V., Robertson, Brant, Silcock, Maddie S., Tacchella, Sandro, Ubler, Hannah, Venturi, Giacomo, Williams, Christina C., Willmer, Christopher N. A., and Willott, Chris
Subjects: Astrophysics - Astrophysics of Galaxies
Abstract: We analyse ultra-deep JWST observations of the galaxy JADES-GS-z9-0 at z = 9.4327, and derive detailed stellar and interstellar medium (ISM) properties of this luminous (MUV=-20.43) high-redshift system. Complementary information from NIRCam imaging and NIRSpec (both low- and medium-resolution) spectroscopy reveal a compact system (Re ~110 pc) characterised by a steeply rising star formation history, which is reflected in the inferred young stellar age (t ~ 3 Myr, light-weighted), high star-formation rate surface density ({\Sigma}SFR ~ 72 M yr-1 kpc-2), high ionisation parameter (log(U) ~ -1.5), low metallicity (12+log(O/H) ~ 7.5), and low carbon-over-oxygen abundance ([C/O] = -0.64). Leveraging the detection of N iii]1750 we derive nitrogen-over-oxygen abundance ([N/O] ~ 0) higher than the plateau followed by low-redshift galaxies of similar metallicity, possibly revealing the imprint from (very) massive stars on the ISM enrichment and favouring a top-heavy Initial Mass Function (IMF) scenario. Massive stars powering a hard radiation field are also required to explain the rest-frame UV line ratios, though the presence of the high-excitation [Ne v]{\lambda}3426 emission line possibly hints at additional ionization from an AGN. We also report the tentative detection of Ly{\alpha} emission in the G140M spectrum, shifted by ~450 km/s redward of the systemic redshift. Combined with a modelling of the Ly{\alpha} spectral break, we rule out the presence of very high column densities of neutral gas pertaining to local absorbers, as well as any extended surrounding ionised bubble, suggesting that JADES-GS-z9-0 has not yet significantly contributed to cosmic Reionization., Comment: Submitted to A&A. Comments are welcome
Published: 2024

3. A shining cosmic dawn: spectroscopic confirmation of two luminous galaxies at $z\sim14$

Author: Carniani, Stefano, Hainline, Kevin, D'Eugenio, Francesco, Eisenstein, Daniel J., Jakobsen, Peter, Witstok, Joris, Johnson, Benjamin D., Chevallard, Jacopo, Maiolino, Roberto, Helton, Jakob M., Willott, Chris, Robertson, Brant, Alberts, Stacey, Arribas, Santiago, Baker, William M., Bhatawdekar, Rachana, Boyett, Kristan, Bunker, Andrew J., Cameron, Alex J., Cargile, Phillip A., Charlot, Stéphane, Curti, Mirko, Curtis-Lake, Emma, Egami, Eiichi, Giardino, Giovanna, Isaak, Kate, Ji, Zhiyuan, Jones, Gareth C., Maseda, Michael V., Parlanti, Eleonora, Rawle, Tim, Rieke, George, Rieke, Marcia, Del Pino, Bruno Rodríguez, Saxena, Aayush, Scholtz, Jan, Smit, Renske, Sun, Fengwu, Tacchella, Sandro, Übler, Hannah, Venturi, Giacomo, Williams, Christina C., and Willmer, Christopher N. A.
Subjects: Astrophysics - Astrophysics of Galaxies
Abstract: The discovery by JWST of an abundance of luminous galaxies in the very early Universe suggests that galaxies developed rapidly, in apparent tension with many standard models. However, most of these galaxies lack spectroscopic confirmation, so their distances and properties are uncertain. We present JADES JWST/NIRSpec spectroscopic confirmation of two luminous galaxies at redshifts of $z=14.32^{+0.08}_{-0.20}$ and $z=13.90\pm0.17$. The spectra reveal ultraviolet continua with prominent Lyman-$\alpha$ breaks but no detected emission lines. This discovery proves that luminous galaxies were already in place 300 million years after the Big Bang and are more common than what was expected before JWST. The most distant of the two galaxies is unexpectedly luminous (M$_{\rm uv}=-20.81\pm0.16$) and is spatially resolved with a radius of 260 parsecs. Considering also the steep ultraviolet slope of the second galaxy ($\beta=-2.71\pm0.19$), we conclude that both are dominated by stellar continuum emission, showing that the excess of luminous galaxies in the early Universe cannot be entirely explained by accretion onto black holes. Galaxy formation models will need to address the existence of such large and luminous galaxies so early in cosmic history., Comment: 26 pages, 15 figures
Published: 2024

4. On-orbit Degradation of the JWST/NIRSpec Micro-Shutter Array: Multiplexing and Target Acquisition

Author: Jakobsen, Peter
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: A statistical analysis of the impact of the diminishing number of operational shutters experienced by the JWST/NIRSpec Micro Shutter Array since Commissioning is presented. It is shown that the number of high priority science targets that NIRSpec is able to observe simultaneously has so far decreased by 3.1%. Of greater concern, however, is NIRSpec's diminished ability to carry out autonomous MSATA target acquisition, which is more sensitive to the loss of shutters than is the multiplexing. In the flagship case of MSA observations of deep fields, the number of pointings at which it is not possible to reach the required minimum number of 5 Valid Reference Stars has increased from 4.9% to 6.3% and is beginning to become noticeable. Similarly, the number of higher risk target acquisitions that need to be carried out with fewer than the maximum allowed number of 8 Reference Stars has grown from 27% to 31%., Comment: 8 pages, 4 Figures
Published: 2024

5. JADES Data Release 3 -- NIRSpec/MSA spectroscopy for 4,000 galaxies in the GOODS fields

Author: D'Eugenio, Francesco, Cameron, Alex J., Scholtz, Jan, Carniani, Stefano, Willott, Chris J., Curtis-Lake, Emma, Bunker, Andrew J., Parlanti, Eleonora, Maiolino, Roberto, Willmer, Christopher N. A., Jakobsen, Peter, Robertson, Brant E., Johnson, Benjamin D., Tacchella, Sandro, Cargile, Phillip A., Rawle, Tim, Arribas, Santiago, Chevallard, Jacopo, Curti, Mirko, Egami, Eiichi, Eisenstein, Daniel J., Kumari, Nimisha, Looser, Tobias J., Rieke, Marcia J., Del Pino, Bruno Rodríguez, Saxena, Aayush, Übler, Hannah, Venturi, Giacomo, Witstok, Joris, Baker, William M., Bhatawdekar, Rachana, Bonaventura, Nina, Boyett, Kristan, Charlot, Stéphane, Danhaive, A. Lola, Hainline, Kevin N., Hausen, Ryan, Helton, Jakob M., Ji, Xihan, Ji, Zhiyuan, Jones, Gareth C., Joudžbalis, Ignas, Maseda, Michael V., Pérez-González, Pablo G., Perna, Michele, Puskás, Dávid, Shivaei, Irene, Silcock, Maddie S., Simmonds, Charlotte, Smit, Renske, Sun, Fengwu, Villanueva, Natalia C., Williams, Christina C., and Zhu, Yongda
Subjects: Astrophysics - Astrophysics of Galaxies
Abstract: We present the third data release of JADES, the JWST Advanced Deep Extragalactic Survey, providing both imaging and spectroscopy in the two GOODS fields. Spectroscopy consists of medium-depth and deep NIRSpec/MSA spectra of 4,000 targets, covering the spectral range 0.6-5.3 $\mu$m and observed with both the low-dispersion prism (R=30-300) and all three medium-resolution gratings (R=500-1,500). We describe the observations, data reduction, sample selection, and target allocation. We measured 2,375 redshifts (2,053 from multiple emission lines); our targets span the range from z=0.5 up to z=13, including 404 at z>5. The data release includes 2-d and 1-d fully reduced spectra, with slit-loss corrections and background subtraction optimized for point sources. We also provide redshifts and S/N>5 emission-line flux catalogs for the prism and grating spectra, and concise guidelines on how to use these data products. Alongside spectroscopy, we are also publishing fully calibrated NIRCam imaging, which enables studying the JADES sample with the combined power of imaging and spectroscopy. Together, these data provide the largest statistical sample to date to characterize the properties of galaxy populations in the first billion years after the Big Bang., Comment: 41 pages, 26 figures, 10 tables. Submitted to ApJS
Published: 2024

6. Searching for Emission Lines at $z>11$: The Role of Damped Lyman-$\alpha$ and Hints About the Escape of Ionizing Photons

Author: Hainline, Kevin N., D'Eugenio, Francesco, Jakobsen, Peter, Chevallard, Jacopo, Carniani, Stefano, Witstok, Joris, Ji, Zhiyuan, Curtis-Lake, Emma, Johnson, Benjamin D., Robertson, Brant, Tacchella, Sandro, Curti, Mirko, Charlot, Stephane, Helton, Jakob M., Arribas, Santiago, Bhatawdekar, Rachana, Bunker, Andrew J., Cameron, Alex J., Egami, Eiichi, Eisenstein, Daniel J., Hausen, Ryan, Kumari, Nimisha, Maiolino, Roberto, Perez-Gonzalez, Pablo G., Rieke, Marcia, Saxena, Aayush, Scholtz, Jan, Smit, Renske, Sun, Fengwu, Williams, Christina C., Willmer, Christopher N. A., and Willott, Chris
Subjects: Astrophysics - Astrophysics of Galaxies
Abstract: We describe new ultra-deep James Webb Space Telescope (JWST) NIRSpec PRISM and grating spectra for the galaxies JADES-GS-z11-0 ($z_{\mathrm{spec}} = 11.122^{+0.005}_{-0.003}$) and JADES-GS-z13-0 ($z_{\mathrm{spec}} = 13.20^{+0.03}_{-0.04}$), the most distant spectroscopically-confirmed galaxy discovered in the first year of JWST observations. The extraordinary depth of these observations (75 hours and 56 hours, respectively) provides a unique opportunity to explore the redshifts, stellar properties, UV magnitudes, and slopes for these two sources. For JADES-GS-z11-0, we find evidence for multiple emission lines, including [OII]3726,3729 and [NeIII]3869, resulting in a spectroscopic redshift we determine with 94% confidence. At this spectroscopic redshift, the Lyman-$\alpha$ break in JADES-GS-z11-0 can be fit with a damped Lyman-$\alpha$ absorber with $\log{(N_\mathrm{HI}/\mathrm{cm}^{-2})} = 22.42^{+0.093}_{-0.120}$. We present stringent upper limits on the emission line fluxes and line equivalent widths for JADES-GS-z13-0. These results demonstrate how neutral hydrogen fraction and Lyman-damping wings may impact the recovery of spectroscopic redshifts for sources like these, providing insight into the overprediction of the photometric redshifts seen for distant galaxies observed with JWST. In addition, we analyze updated NIRCam photometry to calculate the morphological properties of these resolved sources, and find a secondary source $0.3^{\prime\prime}$ south of JADES-GS-z11-0 at a similar photometric redshift, hinting at how galaxies grow through interactions in the early Universe., Comment: 33 pages, 19 figures, submitted to AAS Journals
Published: 2024

7. Spectroscopic confirmation of two luminous galaxies at a redshift of 14

Author: Carniani, Stefano, Hainline, Kevin, D’Eugenio, Francesco, Eisenstein, Daniel J., Jakobsen, Peter, Witstok, Joris, Johnson, Benjamin D., Chevallard, Jacopo, Maiolino, Roberto, Helton, Jakob M., Willott, Chris, Robertson, Brant, Alberts, Stacey, Arribas, Santiago, Baker, William M., Bhatawdekar, Rachana, Boyett, Kristan, Bunker, Andrew J., Cameron, Alex J., Cargile, Phillip A., Charlot, Stéphane, Curti, Mirko, Curtis-Lake, Emma, Egami, Eiichi, Giardino, Giovanna, Isaak, Kate, Ji, Zhiyuan, Jones, Gareth C., Kumari, Nimisha, Maseda, Michael V., Parlanti, Eleonora, Pérez-González, Pablo G., Rawle, Tim, Rieke, George, Rieke, Marcia, Del Pino, Bruno Rodríguez, Saxena, Aayush, Scholtz, Jan, Smit, Renske, Sun, Fengwu, Tacchella, Sandro, Übler, Hannah, Venturi, Giacomo, Williams, Christina C., and Willmer, Christopher N. A.
Published: 2024
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8. Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic Star-Formation Rate Density 300 Myr after the Big Bang

Author: Robertson, Brant, Johnson, Benjamin D., Tacchella, Sandro, Eisenstein, Daniel J., Hainline, Kevin, Arribas, Santiago, Baker, William M., Bunker, Andrew J., Carniani, Stefano, Carreira, Courtney, Cargile, Phillip A., Charlot, Stéphane, Chevallard, Jacopo, Curti, Mirko, Curtis-Lake, Emma, D'Eugenio, Francesco, Egami, Eiichi, Hausen, Ryan, Helton, Jakob M., Jakobsen, Peter, Ji, Zhiyuan, Jones, Gareth C., Maiolino, Roberto, Maseda, Michael V., Nelson, Erica, Pérez-González, Pablo G., Puskás, Dávid, Rieke, Marcia, Smit, Renske, Sun, Fengwu, Übler, Hannah, Whitler, Lily, Williams, Christina C., Willmer, Christopher N. A., Willott, Chris, and Witstok, Joris
Subjects: Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We characterize the earliest galaxy population in the JADES Origins Field (JOF), the deepest imaging field observed with JWST. We make use of the ancillary Hubble optical images (5 filters spanning $0.4-0.9\mu\mathrm{m}$) and novel JWST images with 14 filters spanning $0.8-5\mu\mathrm{m}$, including 7 medium-band filters, and reaching total exposure times of up to 46 hours per filter. We combine all our data at $>2.3\mu\mathrm{m}$ to construct an ultradeep image, reaching as deep as $\approx31.4$ AB mag in the stack and 30.3-31.0 AB mag ($5\sigma$, $r=0.1"$ circular aperture) in individual filters. We measure photometric redshifts and use robust selection criteria to identify a sample of eight galaxy candidates at redshifts $z=11.5-15$. These objects show compact half-light radii of $R_{1/2}\sim50-200$pc, stellar masses of $M_{\star}\sim10^7-10^8 M_{\odot}$, and star-formation rates of $\mathrm{SFR}\sim0.1-1\,M_{\odot}\,\mathrm{yr}^{-1}$. Our search finds no candidates at $15
Published: 2023

9. GA-NIFS: The core of an extremely massive proto-cluster at the Epoch of Reionization probed with JWST/NIRSpec

Author: Arribas, Santiago, Perna, Michele, Del Pino, Bruno Rodríguez, Lamperti, Isabella, D'Eugenio, Francesco, Pérez-González, Pablo G., Jones, Gareth C., Crespo, Alejandro, Curti, Mirko, Lim, Seunghwan, Álvarez-Márquez, Javier, Bunker, Andrew J., Carniani, Stefano, Charlot, Stéphane, Jakobsen, Peter, Maiolino, Roberto, Übler, Hannah, Willott, Chris J., Böker, Torsten, Chevallard, Jacopo, Circosta, Chiara, Cresci, Giovanni, Kumari, Nimisha, Parlanti, Eleonora, Scholtz, Jan, Venturi, Giacomo, and Witstok, Joris
Subjects: Astrophysics - Astrophysics of Galaxies
Abstract: The SPT0311-58 system resides in a massive dark matter halo at z ~ 6.9. It hosts two dusty galaxies (E and W) with a combined star formation rate of ~3500 Msun/yr. Its surrounding field exhibits an overdensity of sub-mm sources, making it a candidate proto-cluster. We use spatially-resolved spectroscopy provided by the JWST/NIRSpec Integral Field Unit (IFU) to probe a field of view (FoV) ~ 17 x 17 kpc^2 around this object. These observations have revealed ten new galaxies at z ~ 6.9, characterised by dynamical masses spanning from ~10^9 to 10^10 Msun and a range in radial velocities of ~ 1500 km/s, in addition to the already known E and W galaxies. The implied large number density, and the wide spread in velocities, indicate that SPT0311-58 is at the core of a proto-cluster, immersed in a very massive dark matter halo of ~ 5 x 10^12 Msun. Hence, it represents the most massive proto-cluster ever found at the EoR. We also study the dynamical stage of the system and find that it likely is not fully virialised. The galaxies exhibit a great diversity of properties showing a range of evolutionary stages. We derive their ongoing Ha-based unobscured SFR, and find that its contribution to the total SF varies significantly across the galaxies in the system. Their ionization conditions range from those typical of field galaxies at similar redshift recently studied with JWST to those found in more evolved objects at lower z. The metallicity spans more than 0.8 dex across the FoV, reaching nearly solar values in some cases. The detailed IFU spectroscopy of the E galaxy reveals that it is actively assembling its stellar mass, showing sub-kpc inhomogeneities, and a metallicity gradient that can be explained by accretion of low metallicity gas from the IGM. The kinematic maps indicate departures from regular rotation, high turbulence, and a possible pre-collision minor merger. (Abridged), Comment: Revised version: minor changes, improved figures, updated references
Published: 2023
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10. The JADES Origins Field: A New JWST Deep Field in the JADES Second NIRCam Data Release

Author: Eisenstein, Daniel J., Johnson, Benjamin D., Robertson, Brant, Tacchella, Sandro, Hainline, Kevin, Jakobsen, Peter, Maiolino, Roberto, Bonaventura, Nina, Bunker, Andrew J., Cameron, Alex J., Cargile, Phillip A., Curtis-Lake, Emma, Hausen, Ryan, Puskás, Dávid, Rieke, Marcia, Sun, Fengwu, Willmer, Christopher N. A., Willott, Chris, Alberts, Stacey, Arribas, Santiago, Baker, William M., Baum, Stefi, Bhatawdekar, Rachana, Carniani, Stefano, Charlot, Stephane, Chen, Zuyi, Chevallard, Jacopo, Curti, Mirko, DeCoursey, Christa, D'Eugenio, Francesco, de Graaff, Anna, Egami, Eiichi, Helton, Jakob M., Ji, Zhiyuan, Jones, Gareth C., Kumari, Nimisha, Lützgendorf, Nora, Laseter, Isaac, Looser, Tobias J., Lyu, Jianwei, Maseda, Michael V., Nelson, Erica, Parlanti, Eleonora, Rauscher, Bernard J., Rawle, Tim, Rieke, George, Rix, Hans-Walter, Rujopakarn, Wiphu, Sandles, Lester, Saxena, Aayush, Scholtz, Jan, Sharpe, Katherine, Shivaei, Irene, Simmonds, Charlotte, Smit, Renske, Topping, Michael W., Übler, Hannah, Venturi, Giacomo, Williams, Christina C., Witstok, Joris, and Woodrum, Charity
Subjects: Astrophysics - Astrophysics of Galaxies
Abstract: We summarize the properties and initial data release of the JADES Origins Field (JOF), which will soon be the deepest imaging field yet observed with the James Webb Space Telescope (JWST). This field falls within the GOODS-S region about 8' south-west of the Hubble Ultra Deep Field (HUDF), where it was formed initially in Cycle 1 as a parallel field of HUDF spectroscopic observations within the JWST Advanced Deep Extragalactic Survey (JADES). This imaging will be greatly extended in Cycle 2 program 3215, which will observe the JOF for 5 days in six medium-band filters, seeking robust candidates for z>15 galaxies. This program will also include ultra-deep parallel NIRSpec spectroscopy (up to 104 hours on-source, summing over the dispersion modes) on the HUDF. Cycle 3 observations from program 4540 will add 20 hours of NIRCam slitless spectroscopy to the JOF. With these three campaigns, the JOF will be observed for 380 open-shutter hours with NIRCam using 15 imaging filters and 2 grism bandpasses. Further, parts of the JOF have deep 43 hr MIRI observations in F770W. Taken together, the JOF will soon be one of the most compelling deep fields available with JWST and a powerful window into the early Universe. This paper presents the second data release from JADES, featuring the imaging and catalogs from the year 1 JOF observations., Comment: Submitted to ApJ Supplement. Images and catalogs are available at https://archive.stsci.edu/hlsp/jades . A FITSmap portal to view the images is at https://jades.idies.jhu.edu
Published: 2023

11. JADES NIRSpec Initial Data Release for the Hubble Ultra Deep Field: Redshifts and Line Fluxes of Distant Galaxies from the Deepest JWST Cycle 1 NIRSpec Multi-Object Spectroscopy

Author: Bunker, Andrew J., Cameron, Alex J., Curtis-Lake, Emma, Jakobsen, Peter, Carniani, Stefano, Curti, Mirko, Witstok, Joris, Maiolino, Roberto, D'Eugenio, Francesco, Looser, Tobias J., Willott, Chris, Bonaventura, Nina, Hainline, Kevin, Uebler, Hannah, Willmer, Christopher N. A., Saxena, Aayush, Smit, Renske, Alberts, Stacey, Arribas, Santiago, Baker, William M., Baum, Stefi, Bhatawdekar, Rachana, Bowler, Rebecca A. A., Boyett, Kristan, Charlot, Stephane, Chen, Zuyi, Chevallard, Jacopo, Circosta, Chiara, DeCoursey, Christa, de Graaff, Anna, Egami, Eiichi, Eisenstein, Daniel J., Endsley, Ryan, Ferruit, Pierre, Giardino, Giovanna, Hausen, Ryan, Helton, Jakob M., Hviding, Raphael E., Ji, Zhiyuan, Johnson, Benjamin D., Jones, Gareth C., Kumari, Nimisha, Laseter, Isaac, Luetzgendorf, Nora, Maseda, Michael V., Nelson, Erica, Parlanti, Eleonora, Perna, Michele, Rauscher, Bernard J., Rawle, Tim, Rix, Hans-Walter, Rieke, Marcia, Robertson, Brant, Del Pino, Bruno Rodriguez, Sandles, Lester, Scholtz, Jan, Sharpe, Katherine, Skarbinski, Maya, Stark, Daniel P., Sun, Fengwu, Tacchella, Sandro, Topping, Michael W., Villanueva, Natalia C., Wallace, Imaan E. B., Williams, Christina C., and Woodrum, Charity
Subjects: Astrophysics - Astrophysics of Galaxies
Abstract: We describe the NIRSpec component of the JWST Deep Extragalactic Survey (JADES), and provide deep spectroscopy of 253 sources targeted with the NIRSpec micro-shutter assembly in the Hubble Ultra Deep Field and surrounding GOODS-South. The multi-object spectra presented here are the deepest so far obtained with JWST, amounting to up to 28 hours in the low-dispersion ($R\sim 30-300$) prism, and up to 7 hours in each of the three medium-resolution $R\approx 1000$ gratings and one high-dispersion grating, G395H ($R\approx2700$). Our low-dispersion and medium-dispersion spectra cover the wavelength range $0.6-5.3\mu$m. We describe the selection of the spectroscopic targets, the strategy for the allocation of targets to micro-shutters, and the design of the observations. We present the public release of the reduced 2D and 1D spectra, and a description of the reduction and calibration process. We measure spectroscopic redshifts for 178 of the objects targeted extending up to $z=13.2$. We present a catalog of all emission lines detected at $S/N>5$, and our redshift determinations for the targets. Combined with the first JADES NIRCam data release, these public JADES spectroscopic and imaging datasets provide a new foundation for discoveries of the infrared universe by the worldwide scientific community., Comment: Accepted for publication in A&A. Data products available from https://archive.stsci.edu/hlsp/jades
Published: 2023

12. Overview of the JWST Advanced Deep Extragalactic Survey (JADES)

Author: Eisenstein, Daniel J., Willott, Chris, Alberts, Stacey, Arribas, Santiago, Bonaventura, Nina, Bunker, Andrew J., Cameron, Alex J., Carniani, Stefano, Charlot, Stephane, Curtis-Lake, Emma, D'Eugenio, Francesco, Endsley, Ryan, Ferruit, Pierre, Giardino, Giovanna, Hainline, Kevin, Hausen, Ryan, Jakobsen, Peter, Johnson, Benjamin D., Maiolino, Roberto, Rieke, Marcia, Rieke, George, Rix, Hans-Walter, Robertson, Brant, Stark, Daniel P., Tacchella, Sandro, Williams, Christina C., Willmer, Christopher N. A., Baker, William M., Baum, Stefi, Bhatawdekar, Rachana, Boyett, Kristan, Chen, Zuyi, Chevallard, Jacopo, Circosta, Chiara, Curti, Mirko, Danhaive, A. Lola, DeCoursey, Christa, de Graaff, Anna, Dressler, Alan, Egami, Eiichi, Helton, Jakob M., Hviding, Raphael E., Ji, Zhiyuan, Jones, Gareth C., Kumari, Nimisha, Lützgendorf, Nora, Laseter, Isaac, Looser, Tobias J., Lyu, Jianwei, Maseda, Michael V., Nelson, Erica, Parlanti, Eleonora, Perna, Michele, Puskás, Dávid, Rawle, Tim, Del Pino, Bruno Rodríguez, Sandles, Lester, Saxena, Aayush, Scholtz, Jan, Sharpe, Katherine, Shivaei, Irene, Silcock, Maddie S., Simmonds, Charlotte, Skarbinski, Maya, Smit, Renske, Stone, Meredith, Suess, Katherine A., Sun, Fengwu, Tang, Mengtao, Topping, Michael W., Übler, Hannah, Villanueva, Natalia C., Wallace, Imaan E. B., Whitler, Lily, Witstok, Joris, and Woodrum, Charity
Subjects: Astrophysics - Astrophysics of Galaxies
Abstract: We present an overview of the James Webb Space Telescope (JWST) Advanced Deep Extragalactic Survey (JADES), an ambitious program of infrared imaging and spectroscopy in the GOODS-S and GOODS-N deep fields, designed to study galaxy evolution from high redshift to cosmic noon. JADES uses about 770 hours of Cycle 1 guaranteed time largely from the Near-Infrared Camera (NIRCam) and Near-Infrared Spectrograph (NIRSpec) instrument teams. In GOODS-S, in and around the Hubble Ultra Deep Field and Chandra Deep Field South, JADES produces a deep imaging region of ~45 arcmin$^2$ with an average of 130 hrs of exposure time spread over 9 NIRCam filters. This is extended at medium depth in GOODS-S and GOODS-N with NIRCam imaging of ~175 arcmin$^2$ with an average exposure time of 20 hrs spread over 8-10 filters. In both fields, we conduct extensive NIRSpec multi-object spectroscopy, including 2 deep pointings of 55 hrs exposure time, 14 medium pointings of ~12 hrs, and 15 shallower pointings of ~4 hrs, targeting over 5000 HST and JWST-detected faint sources with 5 low, medium, and high-resolution dispersers covering 0.6-5.3 microns. Finally, JADES extends redward via coordinated parallels with the JWST Mid-Infrared Instrument (MIRI), featuring ~9 arcmin$^2$ with 43 hours of exposure at 7.7 microns and twice that area with 2-6.5 hours of exposure at 12.8 microns For nearly 30 years, the GOODS-S and GOODS-N fields have been developed as the premier deep fields on the sky; JADES is now providing a compelling start on the JWST legacy in these fields., Comment: 33 pages, submitted to ApJ Supplement. The JADES Collaboration web site is at https://jades-survey.github.io, and the initial data release is available at https://archive.stsci.edu/hlsp/jades with a viewer at http://jades.idies.jhu.edu
Published: 2023

13. The James Webb Space Telescope Mission

Author: Gardner, Jonathan P., Mather, John C., Abbott, Randy, Abell, James S., Abernathy, Mark, Abney, Faith E., Abraham, John G., Abraham, Roberto, Abul-Huda, Yasin M., Acton, Scott, Adams, Cynthia K., Adams, Evan, Adler, David S., Adriaensen, Maarten, Aguilar, Jonathan Albert, Ahmed, Mansoor, Ahmed, Nasif S., Ahmed, Tanjira, Albat, Rüdeger, Albert, Loïc, Alberts, Stacey, Aldridge, David, Allen, Mary Marsha, Allen, Shaune S., Altenburg, Martin, Altunc, Serhat, Alvarez, Jose Lorenzo, Álvarez-Márquez, Javier, de Oliveira, Catarina Alves, Ambrose, Leslie L., Anandakrishnan, Satya M., Andersen, Gregory C., Anderson, Harry James, Anderson, Jay, Anderson, Kristen, Anderson, Sara M., Aprea, Julio, Archer, Benita J., Arenberg, Jonathan W., Argyriou, Ioannis, Arribas, Santiago, Artigau, Étienne, Arvai, Amanda Rose, Atcheson, Paul, Atkinson, Charles B., Averbukh, Jesse, Aymergen, Cagatay, Bacinski, John J., Baggett, Wayne E., Bagnasco, Giorgio, Baker, Lynn L., Balzano, Vicki Ann, Banks, Kimberly A., Baran, David A., Barker, Elizabeth A., Barrett, Larry K., Barringer, Bruce O., Barto, Allison, Bast, William, Baudoz, Pierre, Baum, Stefi, Beatty, Thomas G., Beaulieu, Mathilde, Bechtold, Kathryn, Beck, Tracy, Beddard, Megan M., Beichman, Charles, Bellagama, Larry, Bely, Pierre, Berger, Timothy W., Bergeron, Louis E., Darveau-Bernier, Antoine, Bertch, Maria D., Beskow, Charlotte, Betz, Laura E., Biagetti, Carl P., Birkmann, Stephan, Bjorklund, Kurt F., Blackwood, James D., Blazek, Ronald Paul, Blossfeld, Stephen, Bluth, Marcel, Boccaletti, Anthony, Boegner Jr., Martin E., Bohlin, Ralph C., Boia, John Joseph, Böker, Torsten, Bonaventura, N., Bond, Nicholas A., Bosley, Kari Ann, Boucarut, Rene A., Bouchet, Patrice, Bouwman, Jeroen, Bower, Gary, Bowers, Ariel S., Bowers, Charles W., Boyce, Leslye A., Boyer, Christine T., Boyer, Martha L., Boyer, Michael, Boyer, Robert, Bradley, Larry D., Brady, Gregory R., Brandl, Bernhard R., Brannen, Judith L., Breda, David, Bremmer, Harold G., Brennan, David, Bresnahan, Pamela A., Bright, Stacey N., Broiles, Brian J., Bromenschenkel, Asa, Brooks, Brian H., Brooks, Keira J., Brown, Bob, Brown, Bruce, Brown, Thomas M., Bruce, Barry W., Bryson, Jonathan G., Bujanda, Edwin D., Bullock, Blake M., Bunker, A. J., Bureo, Rafael, Burt, Irving J., Bush, James Aaron, Bushouse, Howard A., Bussman, Marie C., Cabaud, Olivier, Cale, Steven, Calhoon, Charles D., Calvani, Humberto, Canipe, Alicia M., Caputo, Francis M., Cara, Mihai, Carey, Larkin, Case, Michael Eli, Cesari, Thaddeus, Cetorelli, Lee D., Chance, Don R., Chandler, Lynn, Chaney, Dave, Chapman, George N., Charlot, S., Chayer, Pierre, Cheezum, Jeffrey I., Chen, Bin, Chen, Christine H., Cherinka, Brian, Chichester, Sarah C., Chilton, Zachary S., Chittiraibalan, Dharini, Clampin, Mark, Clark, Charles R., Clark, Kerry W., Clark, Stephanie M., Claybrooks, Edward E., Cleveland, Keith A., Cohen, Andrew L., Cohen, Lester M., Colón, Knicole D., Coleman, Benee L., Colina, Luis, Comber, Brian J., Comeau, Thomas M., Comer, Thomas, Reis, Alain Conde, Connolly, Dennis C., Conroy, Kyle E., Contos, Adam R., Contreras, James, Cook, Neil J., Cooper, James L., Cooper, Rachel Aviva, Correia, Michael F., Correnti, Matteo, Cossou, Christophe, Costanza, Brian F., Coulais, Alain, Cox, Colin R., Coyle, Ray T., Cracraft, Misty M., Noriega-Crespo, Alberto, Crew, Keith A., Curtis, Gary J., Cusveller, Bianca, Maciel, Cleyciane Da Costa, Dailey, Christopher T., Daugeron, Frédéric, Davidson, Greg S., Davies, James E., Davis, Katherine Anne, Davis, Michael S., Day, Ratna, de Chambure, Daniel, de Jong, Pauline, De Marchi, Guido, Dean, Bruce H., Decker, John E., Delisa, Amy S., Dell, Lawrence C., Dellagatta, Gail, Dembinska, Franciszka, Demosthenes, Sandor, Dencheva, Nadezhda M., Deneu, Philippe, DePriest, William W., Deschenes, Jeremy, Dethienne, Nathalie, Detre, Örs Hunor, Diaz, Rosa Izela, Dicken, Daniel, DiFelice, Audrey S., Dillman, Matthew, Disharoon, Maureen O., van Dishoeck, Ewine F., Dixon, William V., Doggett, Jesse B., Dominguez, Keisha L., Donaldson, Thomas S., Doria-Warner, Cristina M., Santos, Tony Dos, Doty, Heather, Douglas Jr., Robert E., Doyon, René, Dressler, Alan, Driggers, Jennifer, Driggers, Phillip A., Dunn, Jamie L., DuPrie, Kimberly C., Dupuis, Jean, Durning, John, Dutta, Sanghamitra B., Earl, Nicholas M., Eccleston, Paul, Ecobichon, Pascal, Egami, Eiichi, Ehrenwinkler, Ralf, Eisenhamer, Jonathan D., Eisenhower, Michael, Eisenstein, Daniel J., Hamel, Zaky El, Elie, Michelle L., Elliott, James, Elliott, Kyle Wesley, Engesser, Michael, Espinoza, Néstor, Etienne, Odessa, Etxaluze, Mireya, Evans, Leah, Fabreguettes, Luce, Falcolini, Massimo, Falini, Patrick R., Fatig, Curtis, Feeney, Matthew, Feinberg, Lee D., Fels, Raymond, Ferdous, Nazma, Ferguson, Henry C., Ferrarese, Laura, Ferreira, Marie-Héléne, Ferruit, Pierre, Ferry, Malcolm, Filippazzo, Joseph Charles, Firre, Daniel, Fix, Mees, Flagey, Nicolas, Flanagan, Kathryn A., Fleming, Scott W., Florian, Michael, Flynn, James R., Foiadelli, Luca, Fontaine, Mark R., Fontanella, Erin Marie, Forshay, Peter Randolph, Fortner, Elizabeth A., Fox, Ori D., Framarini, Alexandro P., Francisco, John I., Franck, Randy, Franx, Marijn, Franz, David E., Friedman, Scott D., Friend, Katheryn E., Frost, James R., Fu, Henry, Fullerton, Alexander W., Gaillard, Lionel, Galkin, Sergey, Gallagher, Ben, Galyer, Anthony D., Marín, Macarena García, Gardner, Lisa E., Garland, Dennis, Garrett, Bruce Albert, Gasman, Danny, Gáspár, András, Gastaud, René, Gaudreau, Daniel, Gauthier, Peter Timothy, Geers, Vincent, Geithner, Paul H., Gennaro, Mario, Gerber, John, Gereau, John C., Giampaoli, Robert, Giardino, Giovanna, Gibbons, Paul C., Gilbert, Karolina, Gilman, Larry, Girard, Julien H., Giuliano, Mark E., Gkountis, Konstantinos, Glasse, Alistair, Glassmire, Kirk Zachary, Glauser, Adrian Michael, Glazer, Stuart D., Goldberg, Joshua, Golimowski, David A., Gonzaga, Shireen P., Gordon, Karl D., Gordon, Shawn J., Goudfrooij, Paul, Gough, Michael J., Graham, Adrian J., Grau, Christopher M., Green, Joel David, Greene, Gretchen R., Greene, Thomas P., Greenfield, Perry E., Greenhouse, Matthew A., Greve, Thomas R., Greville, Edgar M., Grimaldi, Stefano, Groe, Frank E., Groebner, Andrew, Grumm, David M., Grundy, Timothy, Güdel, Manuel, Guillard, Pierre, Guldalian, John, Gunn, Christopher A., Gurule, Anthony, Gutman, Irvin Meyer, Guy, Paul D., Guyot, Benjamin, Hack, Warren J., Haderlein, Peter, Hagan, James B., Hagedorn, Andria, Hainline, Kevin, Haley, Craig, Hami, Maryam, Hamilton, Forrest Clifford, Hammann, Jeffrey, Hammel, Heidi B., Hanley, Christopher J., Hansen, Carl August, Hardy, Bruce, Harnisch, Bernd, Harr, Michael Hunter, Harris, Pamela, Hart, Jessica Ann, Hartig, George F., Hasan, Hashima, Hashim, Kathleen Marie, Hashimoto, Ryan, Haskins, Sujee J., Hawkins, Robert Edward, Hayden, Brian, Hayden, William L., Healy, Mike, Hecht, Karen, Heeg, Vince J., Hejal, Reem, Helm, Kristopher A., Hengemihle, Nicholas J., Henning, Thomas, Henry, Alaina, Henry, Ronald L., Henshaw, Katherine, Hernandez, Scarlin, Herrington, Donald C., Heske, Astrid, Hesman, Brigette Emily, Hickey, David L., Hilbert, Bryan N., Hines, Dean C., Hinz, Michael R., Hirsch, Michael, Hitcho, Robert S., Hodapp, Klaus, Hodge, Philip E., Hoffman, Melissa, Holfeltz, Sherie T., Holler, Bryan Jason, Hoppa, Jennifer Rose, Horner, Scott, Howard, Joseph M., Howard, Richard J., Huber, Jean M., Hunkeler, Joseph S., Hunter, Alexander, Hunter, David Gavin, Hurd, Spencer W., Hurst, Brendan J., Hutchings, John B., Hylan, Jason E., Ignat, Luminita Ilinca, Illingworth, Garth, Irish, Sandra M., Isaacs III, John C., Jackson Jr., Wallace C., Jaffe, Daniel T., Jahic, Jasmin, Jahromi, Amir, Jakobsen, Peter, James, Bryan, James, John C., James, LeAndrea Rae, Jamieson, William Brian, Jandra, Raymond D., Jayawardhana, Ray, Jedrzejewski, Robert, Jeffers, Basil S., Jensen, Peter, Joanne, Egges, Johns, Alan T., Johnson, Carl A., Johnson, Eric L., Johnson, Patricia, Johnson, Phillip Stephen, Johnson, Thomas K., Johnson, Timothy W., Johnstone, Doug, Jollet, Delphine, Jones, Danny P., Jones, Gregory S., Jones, Olivia C., Jones, Ronald A., Jones, Vicki, Jordan, Ian J., Jordan, Margaret E., Jue, Reginald, Jurkowski, Mark H., Justis, Grant, Justtanont, Kay, Kaleida, Catherine C., Kalirai, Jason S., Kalmanson, Phillip Cabrales, Kaltenegger, Lisa, Kammerer, Jens, Kan, Samuel K., Kanarek, Graham Childs, Kao, Shaw-Hong, Karakla, Diane M., Karl, Hermann, Kassin, Susan A., Kauffman, David D., Kavanagh, Patrick, Kelley, Leigh L., Kelly, Douglas M., Kendrew, Sarah, Kennedy, Herbert V., Kenny, Deborah A., Keski-Kuha, Ritva A., Keyes, Charles D., Khan, Ali, Kidwell, Richard C., Kimble, Randy A., King, James S., King, Richard C., Kinzel, Wayne M., Kirk, Jeffrey R., Kirkpatrick, Marc E., Klaassen, Pamela, Klingemann, Lana, Klintworth, Paul U., Knapp, Bryan Adam, Knight, Scott, Knollenberg, Perry J., Knutsen, Daniel Mark, Koehler, Robert, Koekemoer, Anton M., Kofler, Earl T., Kontson, Vicki L., Kovacs, Aiden Rose, Kozhurina-Platais, Vera, Krause, Oliver, Kriss, Gerard A., Krist, John, Kristoffersen, Monica R., Krogel, Claudia, Krueger, Anthony P., Kulp, Bernard A., Kumari, Nimisha, Kwan, Sandy W., Kyprianou, Mark, Labador, Aurora Gadiano, Labiano, Álvaro, Lafrenière, David, Lagage, Pierre-Olivier, Laidler, Victoria G., Laine, Benoit, Laird, Simon, Lajoie, Charles-Philippe, Lallo, Matthew D., Lam, May Yen, LaMassa, Stephanie Marie, Lambros, Scott D., Lampenfield, Richard Joseph, Lander, Matthew Ed, Langston, James Hutton, Larson, Kirsten, Larson, Melora, LaVerghetta, Robert Joseph, Law, David R., Lawrence, Jon F., Lee, David W., Lee, Janice, Lee, Yat-Ning Paul, Leisenring, Jarron, Leveille, Michael Dunlap, Levenson, Nancy A., Levi, Joshua S., Levine, Marie B., Lewis, Dan, Lewis, Jake, Lewis, Nikole, Libralato, Mattia, Lidon, Norbert, Liebrecht, Paula Louisa, Lightsey, Paul, Lilly, Simon, Lim, Frederick C., Lim, Pey Lian, Ling, Sai-Kwong, Link, Lisa J., Link, Miranda Nicole, Lipinski, Jamie L., Liu, XiaoLi, Lo, Amy S., Lobmeyer, Lynette, Logue, Ryan M., Long, Chris A., Long, Douglas R., Long, Ilana D., Long, Knox S., López-Caniego, Marcos, Lotz, Jennifer M., Love-Pruitt, Jennifer M., Lubskiy, Michael, Luers, Edward B., Luetgens, Robert A., Luevano, Annetta J., Lui, Sarah Marie G. Flores, Lund III, James M., Lundquist, Ray A., Lunine, Jonathan, Lützgendorf, Nora, Lynch, Richard J., MacDonald, Alex J., MacDonald, Kenneth, Macias, Matthew J., Macklis, Keith I., Maghami, Peiman, Maharaja, Rishabh Y., Maiolino, Roberto, Makrygiannis, Konstantinos G., Malla, Sunita Giri, Malumuth, Eliot M., Manjavacas, Elena, Marini, Andrea, Marrione, Amanda, Marston, Anthony, Martel, André R, Martin, Didier, Martin, Peter G., Martinez, Kristin L., Maschmann, Marc, Masci, Gregory L., Masetti, Margaret E., Maszkiewicz, Michael, Matthews, Gary, Matuskey, Jacob E., McBrayer, Glen A., McCarthy, Donald W., McCaughrean, Mark J., McClare, Leslie A., McClare, Michael D., McCloskey, John C., McClurg, Taylore D., McCoy, Martin, McElwain, Michael W., McGregor, Roy D., McGuffey, Douglas B., McKay, Andrew G., McKenzie, William K., McLean, Brian, McMaster, Matthew, McNeil, Warren, De Meester, Wim, Mehalick, Kimberly L., Meixner, Margaret, Meléndez, Marcio, Menzel, Michael P., Menzel, Michael T., Merz, Matthew, Mesterharm, David D., Meyer, Michael R., Meyett, Michele L., Meza, Luis E., Midwinter, Calvin, Milam, Stefanie N., Miller, Jay Todd, Miller, William C., Miskey, Cherie L., Misselt, Karl, Mitchell, Eileen P., Mohan, Martin, Montoya, Emily E., Moran, Michael J., Morishita, Takahiro, Moro-Martín, Amaya, Morrison, Debra L., Morrison, Jane, Morse, Ernie C., Moschos, Michael, Moseley, S. H., Mosier, Gary E., Mosner, Peter, Mountain, Matt, Muckenthaler, Jason S., Mueller, Donald G., Mueller, Migo, Muhiem, Daniella, Mühlmann, Prisca, Mullally, Susan Elizabeth, Mullen, Stephanie M., Munger, Alan J, Murphy, Jess, Murray, Katherine T., Muzerolle, James C., Mycroft, Matthew, Myers, Andrew, Myers, Carey R., Myers, Fred Richard R., Myers, Richard, Myrick, Kaila, Nagle IV, Adrian F., Nayak, Omnarayani, Naylor, Bret, Neff, Susan G., Nelan, Edmund P., Nella, John, Nguyen, Duy Tuong, Nguyen, Michael N., Nickson, Bryony, Nidhiry, John Joseph, Niedner, Malcolm B., Nieto-Santisteban, Maria, Nikolov, Nikolay K., Nishisaka, Mary Ann, Nota, Antonella, O'Mara, Robyn C., Oboryshko, Michael, O'Brien, Marcus B., Ochs, William R., Offenberg, Joel D., Ogle, Patrick Michael, Ohl, Raymond G., Olmsted, Joseph Hamden, Osborne, Shannon Barbara, O'Shaughnessy, Brian Patrick, Östlin, Göran, O'Sullivan, Brian, Otor, O. Justin, Ottens, Richard, Ouellette, Nathalie N. -Q., Outlaw, Daria J., Owens, Beverly A., Pacifici, Camilla, Page, James Christophe, Paranilam, James G., Park, Sang, Parrish, Keith A., Paschal, Laura, Patapis, Polychronis, Patel, Jignasha, Patrick, Keith, Pattishall Jr., Robert A., Paul, Douglas William, Paul, Shirley J., Pauly, Tyler Andrew, Pavlovsky, Cheryl M., Peña-Guerrero, Maria, Pedder, Andrew H., Peek, Matthew Weldon, Pelham, Patricia A., Penanen, Konstantin, Perriello, Beth A., Perrin, Marshall D., Perrine, Richard F., Perrygo, Chuck, Peslier, Muriel, Petach, Michael, Peterson, Karla A., Pfarr, Tom, Pierson, James M., Pietraszkiewicz, Martin, Pilchen, Guy, Pipher, Judy L., Pirzkal, Norbert, Pitman, Joseph T., Player, Danielle M., Plesha, Rachel, Plitzke, Anja, Pohner, John A., Poletis, Karyn Konstantin, Pollizzi, Joseph A., Polster, Ethan, Pontius, James T., Pontoppidan, Klaus, Porges, Susana C., Potter, Gregg D., Prescott, Stephen, Proffitt, Charles R., Pueyo, Laurent, Neira, Irma Aracely Quispe, Radich, Armando, Rager, Reiko T., Rameau, Julien, Ramey, Deborah D., Alarcon, Rafael Ramos, Rampini, Riccardo, Rapp, Robert, Rashford, Robert A., Rauscher, Bernard J., Ravindranath, Swara, Rawle, Timothy, Rawlings, Tynika N., Ray, Tom, Regan, Michael W., Rehm, Brian, Rehm, Kenneth D., Reid, Neill, Reis, Carl A., Renk, Florian, Reoch, Tom B., Ressler, Michael, Rest, Armin W., Reynolds, Paul J., Richon, Joel G., Richon, Karen V., Ridgaway, Michael, Riedel, Adric Richard, Rieke, George H., Rieke, Marcia, Rifelli, Richard E., Rigby, Jane R., Riggs, Catherine S., Ringel, Nancy J., Ritchie, Christine E., Rix, Hans-Walter, Robberto, Massimo, Robinson, Michael S., Robinson, Orion, Rock, Frank W., Rodriguez, David R., del Pino, Bruno Rodríguez, Roellig, Thomas, Rohrbach, Scott O., Roman, Anthony J., Romelfanger, Frederick J., Romo Jr., Felipe P., Rosales, Jose J., Rose, Perry, Roteliuk, Anthony F., Roth, Marc N., Rothwell, Braden Quinn, Rouzaud, Sylvain, Rowe, Jason, Rowlands, Neil, Roy, Arpita, Royer, Pierre, Rui, Chunlei, Rumler, Peter, Rumpl, William, Russ, Melissa L., Ryan, Michael B., Ryan, Richard M., Saad, Karl, Sabata, Modhumita, Sabatino, Rick, Sabbi, Elena, Sabelhaus, Phillip A., Sabia, Stephen, Sahu, Kailash C., Saif, Babak N., Salvignol, Jean-Christophe, Samara-Ratna, Piyal, Samuelson, Bridget S., Sanders, Felicia A., Sappington, Bradley, Sargent, B. A., Sauer, Arne, Savadkin, Bruce J., Sawicki, Marcin, Schappell, Tina M., Scheffer, Caroline, Scheithauer, Silvia, Scherer, Ron, Schiff, Conrad, Schlawin, Everett, Schmeitzky, Olivier, Schmitz, Tyler S., Schmude, Donald J., Schneider, Analyn, Schreiber, Jürgen, Schroeven-Deceuninck, Hilde, Schultz, John J., Schwab, Ryan, Schwartz, Curtis H., Scoccimarro, Dario, Scott, John F., Scott, Michelle B., Seaton, Bonita L., Seely, Bruce S., Seery, Bernard, Seidleck, Mark, Sembach, Kenneth, Shanahan, Clare Elizabeth, Shaughnessy, Bryan, Shaw, Richard A., Shay, Christopher Michael, Sheehan, Even, Sheth, Kartik, Shih, Hsin-Yi, Shivaei, Irene, Siegel, Noah, Sienkiewicz, Matthew G., Simmons, Debra D., Simon, Bernard P., Sirianni, Marco, Sivaramakrishnan, Anand, Slade, Jeffrey E., Sloan, G. C., Slocum, Christine E., Slowinski, Steven E., Smith, Corbett T., Smith, Eric P., Smith, Erin C., Smith, Koby, Smith, Robert, Smith, Stephanie J., Smolik, John L., Soderblom, David R., Sohn, Sangmo Tony, Sokol, Jeff, Sonneborn, George, Sontag, Christopher D., Sooy, Peter R., Soummer, Remi, Southwood, Dana M., Spain, Kay, Sparmo, Joseph, Speer, David T., Spencer, Richard, Sprofera, Joseph D., Stallcup, Scott S., Stanley, Marcia K., Stansberry, John A., Stark, Christopher C., Starr, Carl W., Stassi, Diane Y., Steck, Jane A., Steeley, Christine D., Stephens, Matthew A., Stephenson, Ralph J., Stewart, Alphonso C., Stiavelli, Massimo, Stockman Jr., Hervey, Strada, Paolo, Straughn, Amber N., Streetman, Scott, Strickland, David Kendal, Strobele, Jingping F., Stuhlinger, Martin, Stys, Jeffrey Edward, Such, Miguel, Sukhatme, Kalyani, Sullivan, Joseph F., Sullivan, Pamela C., Sumner, Sandra M., Sun, Fengwu, Sunnquist, Benjamin Dale, Swade, Daryl Allen, Swam, Michael S., Swenton, Diane F., Swoish, Robby A., Litten, Oi In Tam, Tamas, Laszlo, Tao, Andrew, Taylor, David K., Taylor, Joanna M., Plate, Maurice te, Van Tea, Mason, Teague, Kelly K., Telfer, Randal C., Temim, Tea, Texter, Scott C., Thatte, Deepashri G., Thompson, Christopher Lee, Thompson, Linda M., Thomson, Shaun R., Thronson, Harley, Tierney, C. M., Tikkanen, Tuomo, Tinnin, Lee, Tippet, William Thomas, Todd, Connor William, Tran, Hien D., Trauger, John, Trejo, Edwin Gregorio, Truong, Justin Hoang Vinh, Tsukamoto, Christine L., Tufail, Yasir, Tumlinson, Jason, Tustain, Samuel, Tyra, Harrison, Ubeda, Leonardo, Underwood, Kelli, Uzzo, Michael A., Vaclavik, Steven, Valenduc, Frida, Valenti, Jeff A., Van Campen, Julie, van de Wetering, Inge, Van Der Marel, Roeland P., van Haarlem, Remy, Vandenbussche, Bart, Vanterpool, Dona D., Vernoy, Michael R., Costas, Maria Begoña Vila, Volk, Kevin, Voorzaat, Piet, Voyton, Mark F., Vydra, Ekaterina, Waddy, Darryl J., Waelkens, Christoffel, Wahlgren, Glenn Michael, Walker Jr., Frederick E., Wander, Michel, Warfield, Christine K., Warner, Gerald, Wasiak, Francis C., Wasiak, Matthew F., Wehner, James, Weiler, Kevin R., Weilert, Mark, Weiss, Stanley B., Wells, Martyn, Welty, Alan D., Wheate, Lauren, Wheeler, Thomas P., White, Christy L., Whitehouse, Paul, Whiteleather, Jennifer Margaret, Whitman, William Russell, Williams, Christina C., Willmer, Christopher N. A., Willott, Chris J., Willoughby, Scott P., Wilson, Andrew, Wilson, Debra, Wilson, Donna V., Windhorst, Rogier, Wislowski, Emily Christine, Wolfe, David J., Wolfe, Michael A., Wolff, Schuyler, Wondel, Amancio, Woo, Cindy, Woods, Robert T., Worden, Elaine, Workman, William, Wright, Gillian S., Wu, Carl, Wu, Chi-Rai, Wun, Dakin D., Wymer, Kristen B., Yadetie, Thomas, Yan, Isabelle C., Yang, Keith C., Yates, Kayla L., Yeager, Christopher R., Yerger, Ethan John, Young, Erick T., Young, Gary, Yu, Gene, Yu, Susan, Zak, Dean S., Zeidler, Peter, Zepp, Robert, Zhou, Julia, Zincke, Christian A., Zonak, Stephanie, and Zondag, Elisabeth
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: Twenty-six years ago a small committee report, building on earlier studies, expounded a compelling and poetic vision for the future of astronomy, calling for an infrared-optimized space telescope with an aperture of at least $4m$. With the support of their governments in the US, Europe, and Canada, 20,000 people realized that vision as the $6.5m$ James Webb Space Telescope. A generation of astronomers will celebrate their accomplishments for the life of the mission, potentially as long as 20 years, and beyond. This report and the scientific discoveries that follow are extended thank-you notes to the 20,000 team members. The telescope is working perfectly, with much better image quality than expected. In this and accompanying papers, we give a brief history, describe the observatory, outline its objectives and current observing program, and discuss the inventions and people who made it possible. We cite detailed reports on the design and the measured performance on orbit., Comment: Accepted by PASP for the special issue on The James Webb Space Telescope Overview, 29 pages, 4 figures
Published: 2023
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14. JADES: Discovery of extremely high equivalent width Lyman-alpha emission from a faint galaxy within an ionized bubble at z=7.3

Author: Saxena, Aayush, Robertson, Brant E., Bunker, Andrew J., Endsley, Ryan, Cameron, Alex J., Charlot, Stephane, Simmonds, Charlotte, Tacchella, Sandro, Witstok, Joris, Willott, Chris, Carniani, Stefano, Curtis-Lake, Emma, Ferruit, Pierre, Jakobsen, Peter, Arribas, Santiago, Chevallard, Jacopo, Curti, Mirko, D'Eugenio, Francesco, De Graaff, Anna, Jones, Gareth C., Looser, Tobias J., Maseda, Michael V., Rawle, Tim, Rix, Hans-Walter, Del Pino, Bruno Rodríguez, Smit, Renske, Übler, Hannah, Eisenstein, Daniel J., Hainline, Kevin, Hausen, Ryan, Johnson, Benjamin D., Rieke, Marcia, Williams, Christina C., Willmer, Christopher N. A., Baker, William M., Bhatawdekar, Rachana, Bowler, Rebecca, Boyett, Kristan, Chen, Zuyi, Egami, Eiichi, Ji, Zhiyuan, Nelson, Erica, Perna, Michele, Sandles, Lester, Scholtz, Jan, and Shivaei, Irene
Subjects: Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We report the discovery of a remarkable Ly$\alpha$ emitting galaxy at z = 7.2782, JADES-GS-z7-LA, with EW$_0$(Ly$\alpha$) $= 388.0 \pm 88.8$\AA and UV magnitude -17.0. The spectroscopic redshift is confirmed via rest-frame optical lines [O II], H$\beta$ and [O III] in its JWST/NIRSpec Micro-Shutter Assembly (MSA) spectrum. The Ly$\alpha$ line is detected in both lower resolution PRISM as well as medium resolution G140M grating spectra. The LSF-deconvolved Ly$\alpha$ FWHM in the grating is $383.9 \pm 56.2$ km/s and the Ly$\alpha$ velocity offset compared to the systemic redshift is $113.3 \pm 80.0$ km/s, indicative of very little neutral gas or dust within the galaxy. We estimate the Ly$\alpha$ escape fraction to be >70%. JADES-GS-z7-LA has a O32 ratio of $11.1 \pm 2.2$ and a R23 ratio of $11.2 \pm 2.6$, consistent with low metallicity and high ionization parameters. Deep NIRCam imaging also revealed a close companion source (separated by 0.23"), which exhibits similar photometry to that of JADES-GS-z7-LA, with a photometric excess in the F410M NIRCam image consistent with [O III]+H$\beta$ emission at the same redshift. The spectral energy distribution of JADES-GS-z7-LA indicates a "bursty" star formation history, with a low stellar mass of $\approx 10^7$ $M_\odot$. Assuming that the Ly$\alpha$ transmission through the intergalactic medium is the same as its measured escape fraction, an ionized region of size > 1.5 pMpc is needed to explain the high Ly$\alpha$ EW and low velocity offset compared to systemic seen in JADES-GS-z7-LA. Owing to its UV-faintness, we show that it is incapable of single-handedly ionizing a region large enough to explain its Ly$\alpha$ emission. Therefore, we suggest that JADES-GS-z7-LA (and possibly the companion source) may be a part of a larger overdensity, presenting direct evidence of overlapping ionized bubbles at $z>7$., Comment: 14 pages, 8 figures, Accepted for publication in A&A
Published: 2023
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15. JADES NIRSpec Spectroscopy of GN-z11: Lyman-$\alpha$ emission and possible enhanced nitrogen abundance in a $z=10.60$ luminous galaxy

Author: Bunker, Andrew J., Saxena, Aayush, Cameron, Alex J., Willott, Chris J., Curtis-Lake, Emma, Jakobsen, Peter, Carniani, Stefano, Smit, Renske, Maiolino, Roberto, Witstok, Joris, Curti, Mirko, D'Eugenio, Francesco, Jones, Gareth C., Ferruit, Pierre, Arribas, Santiago, Charlot, Stephane, Chevallard, Jacopo, Giardino, Giovanna, de Graaff, Anna, Looser, Tobias J., Luetzgendorf, Nora, Maseda, Michael V., Rawle, Tim, Rix, Hans-Walter, Del Pino, Bruno Rodriguez, Alberts, Stacey, Egami, Eiichi, Eisenstein, Daniel J., Endsley, Ryan, Hainline, Kevin, Hausen, Ryan, Johnson, Benjamin D., Rieke, George, Rieke, Marcia, Robertson, Brant E., Shivaei, Irene, Stark, Daniel P., Sun, Fengwu, Tacchella, Sandro, Tang, Mengtao, Williams, Christina C., Willmer, Christopher N. A., Baker, William M., Baum, Stefi, Bhatawdekar, Rachana, Bowler, Rebecca, Boyett, Kristan, Chen, Zuyi, Circosta, Chiara, Helton, Jakob M., Ji, Zhiyuan, Lyu, Jianwei, Nelson, Erica, Parlanti, Eleonora, Perna, Michele, Sandles, Lester, Scholtz, Jan, Suess, Katherine A., Topping, Michael W., Uebler, Hannah, Wallace, Imaan E. B., and Whitler, Lily
Subjects: Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We present JADES JWST/NIRSpec spectroscopy of GN-z11, the most luminous candidate $z>10$ Lyman break galaxy in the GOODS-North field with $M_{UV}=-21.5$. We derive a redshift of $z=10.603$ (lower than previous determinations) based on multiple emission lines in our low and medium resolution spectra over $0.8-5.3 \mu$m. We significantly detect the continuum and measure a blue rest-UV spectral slope of $\beta=-2.4$. Remarkably, we see spatially-extended Lyman-$\alpha$ in emission (despite the highly-neutral IGM expected at this early epoch), offset 555 km s$^{-1}$ redward of the systemic redshift. From our measurements of collisionally-excited lines of both low- and high-ionization (including [O II]$\lambda3727$, [Ne III]$\lambda 3869$ and C III]$\lambda1909$) we infer a high ionization parameter ($\log U\sim -2$). We detect the rarely-seen N IV]$\lambda1486$ and N III]$\lambda1748$ lines in both our low and medium resolution spectra, with other high ionization lines seen in the low resolution spectrum such as He II (blended with O III]) and C IV (with a possible P-Cygni profile). Based on the observed rest-UV line ratios, we cannot conclusively rule out photoionization from AGN, although the high C III]/He II and N III]/He II ratios are compatible with a star-formation explanation. If the observed emission lines are powered by star formation, then the strong N III]$\lambda1748$ observed may imply an unusually high $N/O$ abundance. Balmer emission lines (H$\gamma$, H$\delta$) are also detected, and if powered by star formation rather than an AGN we infer a star formation rate of $\sim 20-30 M_{\odot} yr^{-1}$ (depending on the IMF) and low dust attenuation. Our NIRSpec spectroscopy confirms that GN-z11 is a remarkable galaxy with extreme properties seen 430 Myr after the Big Bang., Comment: Accepted for publication in Astronomy & Astrophysics, 17 pages, 12 figures. Line fluxes updated
Published: 2023
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16. GA-NIFS: A massive black hole in a low-metallicity AGN at $z\sim5.55$ revealed by JWST/NIRSpec IFS

Author: Übler, Hannah, Maiolino, Roberto, Curtis-Lake, Emma, Pérez-González, Pablo G., Curti, Mirko, Perna, Michele, Arribas, Santiago, Charlot, Stéphane, Marshall, Madeline A., D'Eugenio, Francesco, Scholtz, Jan, Bunker, Andrew, Carniani, Stefano, Ferruit, Pierre, Jakobsen, Peter, Rix, Hans-Walter, Del Pino, Bruno Rodríguez, Willott, Chris J., Böker, Torsten, Cresci, Giovanni, Jones, Gareth C., Kumari, Nimisha, and Rawle, Tim
Subjects: Astrophysics - Astrophysics of Galaxies
Abstract: We present JWST/NIRSpec Integral Field Spectrograph rest-frame optical data of the compact $z=5.55$ galaxy GS_3073. Its prominent broad components in several hydrogen and helium lines (while absent in the forbidden lines), and the detection of a large equivalent width of He II$\lambda4686$, EW(He II) ~ 20A, unambiguously identify it as an active galactic nucleus (AGN). We measure a gas-phase metallicity of $Z_{\rm gas}/Z_\odot\sim0.21^{+0.08}_{-0.04}$, lower than what has been inferred for both more luminous AGN at similar redshift and lower redshift AGN. We empirically show that classical emission line ratio diagnostic diagrams cannot be used to distinguish between the primary ionisation source (AGN or star formation) for such low-metallicity systems, whereas different diagnostic diagrams involving He II$\lambda4686$ prove very useful, independent of metallicity. We measure the central black hole mass to be $\log(M_{\rm BH}/M_\odot)\sim8.2\pm0.4$ based on the luminosity and width of the broad line region of the H$\alpha$ emission. While this places GS_3073 at the lower end of known high-redshift black hole masses, it still appears to be over-massive compared to its host galaxy properties. We detect an outflow with projected velocity $\gtrsim700$ km/s and infer an ionised gas mass outflow rate of about $100\ M_\odot/$yr, suggesting that GS_3073 is able to enrich the intergalactic medium with metals one billion years after the Big Bang., Comment: 17 pages, 10 figures; accepted for publication in A&A
Published: 2023
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17. GA-NIFS: Black hole and host galaxy properties of two z$\simeq$6.8 quasars from the NIRSpec IFU

Author: Marshall, Madeline A., Perna, Michele, Willott, Chris J., Maiolino, Roberto, Scholtz, Jan, Übler, Hannah, Carniani, Stefano, Arribas, Santiago, Lützgendorf, Nora, Bunker, Andrew J., Charlot, Stephane, Ferruit, Pierre, Jakobsen, Peter, Rix, Hans-Walter, Del Pino, Bruno Rodríguez, Böker, Torsten, Cameron, Alex J., Cresci, Giovanni, Curtis-Lake, Emma, Jones, Gareth C., Kumari, Nimisha, Pérez-González, Pablo G., and Reed, Sophie L.
Subjects: Astrophysics - Astrophysics of Galaxies
Abstract: Integral Field Spectroscopy (IFS) with JWST NIRSpec will significantly improve our understanding of the first quasars, by providing spatially resolved, infrared spectroscopic capabilities which cover key rest-frame optical emission lines that have been previously unobservable. Here we present our results from the first two z>6 quasars observed as a part of the Galaxy Assembly with NIRSpec IFS (GA-NIFS) GTO program, DELS J0411-0907 at z=6.82 and VDES J0020-3653 at z=6.86. By observing the H$\beta$, [OIII], and H$\alpha$ emission lines in these high-z quasars for the first time, we measure accurate black hole masses, $M_{\rm{BH}}=1.85e9$ and $2.9e9$M$_\odot$, corresponding to Eddington ratios of $\lambda_{\rm{Edd}}=0.8$ and 0.4 for DELS J0411-0907 and VDES J0020-3653 respectively. These provide a key comparison for existing estimates from the more uncertain MgII line. We perform quasar-host decomposition using models of the quasars' broad lines to measure the underlying host galaxies. We also discover multiple emission line regions surrounding each of the host galaxies, which are likely companion galaxies undergoing mergers with these hosts. We measure the star formation rates, excitation mechanisms, and dynamical masses of the hosts and companions, measuring the $M_{\rm{BH}}/M_{\rm{dyn}}$ ratios at high-z using these estimators for the first time. DELS J0411-0907 and VDES J0020-3653 both lie above the local black hole--host mass relation, and are consistent with the existing observations of $z\gtrsim6$ quasar host galaxies with ALMA. We detect ionized outflows in [OIII] and H$\beta$ from both quasars, with mass outflow rates of 58 and 525 M$_{\odot}$/yr for DELS J0411-0907 and VDES J0020-3653, much larger than their host star formation rates of <33 and <54 M$_\odot$/yr. This work highlights the exceptional capabilities of the JWST NIRSpec IFU for observing quasars in the early Universe., Comment: 27 pages, 10 figures. Resubmitted to A&A after significant revisions. If you have cited values from our first version, please check this version and update accordingly, as many values have changed slightly thanks to improvements in our analysis
Published: 2023
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18. JADES: Probing interstellar medium conditions at $z\sim5.5-9.5$ with ultra-deep JWST/NIRSpec spectroscopy

Author: Cameron, Alex J., Saxena, Aayush, Bunker, Andrew J., D'Eugenio, Francesco, Carniani, Stefano, Maiolino, Roberto, Curtis-Lake, Emma, Ferruit, Pierre, Jakobsen, Peter, Arribas, Santiago, Bonaventura, Nina, Charlot, Stephane, Chevallard, Jacopo, Curti, Mirko, Looser, Tobias J., Maseda, Michael V., Rawle, Tim, Del Pino, Bruno Rodríguez, Smit, Renske, Übler, Hannah, Willott, Chris, Witstok, Joris, Egami, Eiichi, Eisenstein, Daniel J., Johnson, Benjamin D., Hainline, Kevin, Rieke, Marcia, Robertson, Brant E., Stark, Daniel P., Tacchella, Sandro, Williams, Christina C., Willmer, Christopher N. A., Bhatawdekar, Rachana, Bowler, Rebecca, Boyett, Kristan, Circosta, Chiara, Helton, Jakob M., Jones, Gareth C., Kumari, Nimisha, Ji, Zhiyuan, Nelson, Erica, Parlanti, Eleonora, Sandles, Lester, Scholtz, Jan, and Sun, Fengwu
Subjects: Astrophysics - Astrophysics of Galaxies
Abstract: We present emission line ratios from a sample of 26 Lyman break galaxies from $z\sim5.5-9.5$ with $-17.05.5$ spectra. We find that the emission line ratios exhibited by these $z\sim5.5-9.5$ galaxies occupy clearly distinct regions of line-ratio space compared to typical z~0-3 galaxies, instead being more consistent with extreme populations of lower-redshift galaxies. This is best illustrated by the [OIII]/[OII] ratio, tracing interstellar medium (ISM) ionisation, in which we observe more than half of our sample to have [OIII]/[OII]>10. Our high signal-to-noise spectra reveal more than an order of magnitude of scatter in line ratios such as [OII]/H$\beta$ and [OIII]/[OII], indicating significant diversity in the ISM conditions within the sample. We find no convincing detections of [NII] in our sample, either in individual galaxies, or a stack of all G395M/F290LP spectra. The emission line ratios observed in our sample are generally consistent with galaxies with extremely high ionisation parameters (log $U\sim-1.5$), and a range of metallicities spanning from $\sim0.1\times Z_\odot$ to higher than $\sim0.3\times Z_\odot$, suggesting we are probing low-metallicity systems undergoing periods of rapid star-formation, driving strong radiation fields. These results highlight the value of deep observations in constraining the properties of individual galaxies, and hence probing diversity within galaxy population., Comment: 20 pages, 9 figures, submitted to Astronomy & Astrophysics, updated values in tables
Published: 2023
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19. The Rise of Iran: How Durable, How Dangerous?

Author: Rahigh-Aghsan, Ali and Jakobsen, Peter Viggo
Published: 2010

20. Spectroscopic confirmation of four metal-poor galaxies at z=10.3-13.2

Author: Curtis-Lake, Emma, Carniani, Stefano, Cameron, Alex, Charlot, Stephane, Jakobsen, Peter, Maiolino, Roberto, Bunker, Andrew, Witstok, Joris, Smit, Renske, Chevallard, Jacopo, Willott, Chris, Ferruit, Pierre, Arribas, Santiago, Bonaventura, Nina, Curti, Mirko, D'Eugenio, Francesco, Franx, Marijn, Giardino, Giovanna, Looser, Tobias J., Lützgendorf, Nora, Maseda, Michael V., Rawle, Tim, Rix, Hans-Walter, del Pino, Bruno Rodriguez, Übler, Hannah, Sirianni, Marko, Dressler, Alan, Egami, Eiichi, Eisenstein, Daniel J., Endsley, Ryan, Hainline, Kevin, Hausen, Ryan, Johnson, Benjamin D., Rieke, Marcia, Robertson, Brant, Shivaei, Irene, Stark, Daniel P., Tacchella, Sandro, Williams, Christina C., Willmer, Christopher N. A., Bhatawdekar, Rachana, Bowler, Rebecca, Boyett, Kristan, Chen, Zuyi, de Graaff, Anna, Helton, Jakob M., Hviding, Raphael E., Jones, Gareth C., Kumari, Nimisha, Lyu, Jianwei, Nelson, Erica, Perna, Michele, Sandles, Lester, Saxena, Aayush, Suess, Katherine A., Sun, Fengwu, Topping, Michael W., Wallace, Imaan E. B., and Whitler, Lily
Subjects: Astrophysics - Astrophysics of Galaxies
Abstract: Finding and characterising the first galaxies that illuminated the early Universe at cosmic dawn is pivotal to understand the physical conditions and the processes that led to the formation of the first stars. In the first few months of operations, imaging from the James Webb Space Telescope (JWST) have been used to identify tens of candidates of galaxies at redshift (z) greater than 10, less than 450 million years after the Big Bang. However, none of these candidates has yet been confirmed spectroscopically, leaving open the possibility that they are actually low-redshift interlopers. Here we present spectroscopic confirmation and analysis of four galaxies unambiguously detected at redshift 10.3
Published: 2022

21. Review of Survey activities 2010: Detection of terrain changes in southern Denmark using persistent scatterer interferometry

Author: Pedersen, Stig A. Schack, Cooksley, Geraint, Gaset, Marc, and Jakobsen, Peter Roll
Subjects: Geological Survey of Denmark and Greenland, survey organisations, current research, Denmark, Greenland, Geology, QE1-996.5, Geophysics. Cosmic physics, QC801-809
Published: 2011

22. Review of Survey activities 2009: Radon content in Danish till deposits: relationship withredox conditions and age

Author: Gravesen, Peter and Jakobsen, Peter Roll
Subjects: Geological Survey of Denmark and Greenland, survey organisations, current research, Denmark, Greenland, Geology, QE1-996.5, Geophysics. Cosmic physics, QC801-809
Published: 2010

23. Review of Survey activities 2008: Fracture valleys in central Jylland – a neotectonic feature

Author: Jakobsen, Peter Roll and Pedersen, Stig A. Schack
Subjects: Geological Survey of Denmark and Greenland, survey organisations, current research, Denmark, Greenland, Geology, QE1-996.5, Geophysics. Cosmic physics, QC801-809
Published: 2009

24. Astrometric and Wavelength Calibration of the NIRSpec Instrument during Commissioning using a model-based approach

Author: Lützgendorf, Nora, Giardino, Giovanna, de Oliveira, Catarina Alves, Zeidler, Peter, Ferruit, Pierre, Jakobsen, Peter, Kumari, Nimisha, Rawle, Timothy, Birkmann, Stephan M., Böker, Torsten, Proffitt, Charles, Sirianni, Marco, Plate, Maurice Te, and Sohn, Sangmo Tony
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: The NIRSpec instrument for the James Webb Space Telescope (JWST) is a highly versatile near-infrared spectrograph that can be operated in various observing modes, slit apertures, and spectral resolutions. Obtaining dedicated calibration data for all possible combinations of aperture and disperser is an intractable task. We have therefore developed a procedure to derive a highly realistic model of the instrument's optical geometry across the entire field of view, using calibration data acquired through only a subset of NIRSpec apertures, which nevertheless allows the light paths within the spectrograph to be accurately computed for all apertures and all observing modes. This parametric instrument model thus provides the basis for the extraction of wavelength-calibrated spectra from any NIRSpec exposure, regardless of observing mode or aperture used. Optimizing the NIRSpec instrument model and deriving its final wavelength and astrometric calibration was one of the most crucial elements of the NIRSpec commissioning phase. Here, we describe the process of re-fitting the NIRSpec instrument model with in-orbit commissioning data, and present its final performance in terms of wavelength accuracy and astrometric calibration., Comment: 15 pages, to appear in Proceedings of SPIE conference "Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave"
Published: 2022

25. In-flight performance of the NIRSpec Micro Shutter Array

Author: Rawle, Timothy D., Giardino, Giovanna, Franz, David E., Rapp, Robert, Plate, Maurice te, Zincke, Christian A., Abul-Huda, Yasin M., de Oliveira, Catarina Alves, Bechtold, Katie, Beck, Tracy, Birkmann, Stephan M., Böker, Torsten, Ehrenwinkler, Ralf, Ferruit, Pierre, Garland, Dennis, Jakobsen, Peter, Karakla, Diane, Karl, Hermann, Keyes, Charles D., Koehler, Robert, Kumari, Nimisha, Lützgendorf, Nora, Manjavacas, Elena, Marston, Anthony, Moseley, S. Harvey, Mosner, Peter, Muzerolle, James, Ogle, Patrick, Proffitt, Charles, Sabbi, Elena, Sirianni, Marco, Wahlgren, Glenn, Wislowski, Emily, Wright, Raymond H., Wu, Chi Rai, and Zeidler, Peter
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: The NIRSpec instrument on the James Webb Space Telescope (JWST) brings the first multi-object spectrograph (MOS) into space, enabled by a programmable Micro Shutter Array (MSA) of ~250,000 individual apertures. During the 6-month Commissioning period, the MSA performed admirably, completing ~800 reconfigurations with an average success rate of ~96% for commanding shutters open in science-like patterns. We show that 82.5% of the unvignetted shutter population is usable for science, with electrical short masking now the primary cause of inoperable apertures. In response, we propose a plan to recheck existing shorts during nominal operations, which is expected to reduce the number of affected shutters. We also present a full assessment of the Failed Open and Failed Closed shutter populations, which both show a marginal increase in line with predictions from ground testing. We suggest an amendment to the Failed Closed shutter flagging scheme to improve flexibility for MSA configuration planning. Overall, the NIRSpec MSA performed very well during Commissioning, and the MOS mode was declared ready for science operations on schedule., Comment: 15 pages, 6 figures, to appear in Proceedings of SPIE conference "Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave"
Published: 2022

26. In-orbit Commissioning of the Near-Infrared Spectrograph on the James Webb Space Telescope

Author: Böker, Torsten, Abul-Huda, Yasin, Altenburg, Martin, de Oliveira, Catarina Alves, Bechtold, Katie, Beck, Tracy, Birkmann, Stephan M., Bonaventura, Nina, Ehrenwinkler, Ralf, Ferruit, Pierre, Franz, David E., Giardino, Giovanna, Jakobsen, Peter, Jensen, Peter, Jollet, Delphine, Karakla, Diane, Karl, Hermann, Keyes, Charles, Kumari, Nimisha, Lander, Matthew, López-Caniego, Marcos, Lützgendorf, Nora, Manjavacas, Elena, Marston, Anthony, Maschmann, Marc, Mosner, Peter, Muzerolle, James, Ogle, Patrick, Guerrero, Maria Pena, Plesha, Rachel, Proffitt, Charles, Rapp, Robert, Rawle, Timothy, Del Pino, Bruno Rodríguez, Sabbi, Elena, Sauer, Arne, Sirianni, Marco, Smith, Corbett, Plate, Maurice te, Wahlgren, Glenn, Wislowski, Emily, Wu, Rai, Zeidler, Peter, and Zincke, Christian A.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: The Near-Infrared Spectrograph (NIRSpec) is one of the four focal plane instruments on the James Webb Space Telescope which was launched on Dec. 25, 2021. We present an overview of the as-run NIRSpec commissioning campaign, with particular emphasis on the sequence of activities that led to the verification of all hardware components of NIRSpec. We also discuss the mechanical, thermal, and operational performance of NIRSpec, as well as the readiness of all NIRSpec observing modes for use in the upcoming JWST science program., Comment: 10 pages, to appear in Proceedings of SPIE conference "Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave"
Published: 2022

27. The Science Performance of JWST as Characterized in Commissioning

Author: Rigby, Jane, Perrin, Marshall, McElwain, Michael, Kimble, Randy, Friedman, Scott, Lallo, Matt, Doyon, René, Feinberg, Lee, Ferruit, Pierre, Glasse, Alistair, Rieke, Marcia, Rieke, George, Wright, Gillian, Willott, Chris, Colon, Knicole, Milam, Stefanie, Neff, Susan, Stark, Christopher, Valenti, Jeff, Abell, Jim, Abney, Faith, Abul-Huda, Yasin, Acton, D. Scott, Adams, Evan, Adler, David, Aguilar, Jonathan, Ahmed, Nasif, Albert, Loïc, Alberts, Stacey, Aldridge, David, Allen, Marsha, Altenburg, Martin, Marquez, Javier Alvarez, de Oliveira, Catarina Alves, Andersen, Greg, Anderson, Harry, Anderson, Sara, Argyriou, Ioannis, Armstrong, Amber, Arribas, Santiago, Artigau, Etienne, Arvai, Amanda, Atkinson, Charles, Bacon, Gregory, Bair, Thomas, Banks, Kimberly, Barrientes, Jaclyn, Barringer, Bruce, Bartosik, Peter, Bast, William, Baudoz, Pierre, Beatty, Thomas, Bechtold, Katie, Beck, Tracy, Bergeron, Eddie, Bergkoetter, Matthew, Bhatawdekar, Rachana, Birkmann, Stephan, Blazek, Ronald, Blome, Claire, Boccaletti, Anthony, Boeker, Torsten, Boia, John, Bonaventura, Nina, Bond, Nicholas, Bosley, Kari, Boucarut, Ray, Bourque, Matthew, Bouwman, Jeroen, Bower, Gary, Bowers, Charles, Boyer, Martha, Bradley, Larry, Brady, Greg, Braun, Hannah, Breda, David, Bresnahan, Pamela, Bright, Stacey, Britt, Christopher, Bromenschenkel, Asa, Brooks, Brian, Brooks, Keira, Brown, Bob, Brown, Matthew, Brown, Patricia, Bunker, Andy, Burger, Matthew, Bushouse, Howard, Cale, Steven, Cameron, Alex, Cameron, Peter, Canipe, Alicia, Caplinger, James, Caputo, Francis, Cara, Mihai, Carey, Larkin, Carniani, Stefano, Carrasquilla, Maria, Carruthers, Margaret, Case, Michael, Catherine, Riggs, Chance, Don, Chapman, George, Charlot, Stéphane, Charlow, Brian, Chayer, Pierre, Chen, Bin, Cherinka, Brian, Chichester, Sarah, Chilton, Zack, Chonis, Taylor, Clampin, Mark, Clark, Charles, Clark, Kerry, Coe, Dan, Coleman, Benee, Comber, Brian, Comeau, Tom, Connolly, Dennis, Cooper, James, Cooper, Rachel, Coppock, Eric, Correnti, Matteo, Cossou, Christophe, Coulais, Alain, Coyle, Laura, Cracraft, Misty, Curti, Mirko, Cuturic, Steven, Davis, Katherine, Davis, Michael, Dean, Bruce, DeLisa, Amy, deMeester, Wim, Dencheva, Nadia, Dencheva, Nadezhda, DePasquale, Joseph, Deschenes, Jeremy, Detre, Örs Hunor, Diaz, Rosa, Dicken, Dan, DiFelice, Audrey, Dillman, Matthew, Dixon, William, Doggett, Jesse, Donaldson, Tom, Douglas, Rob, DuPrie, Kimberly, Dupuis, Jean, Durning, John, Easmin, Nilufar, Eck, Weston, Edeani, Chinwe, Egami, Eiichi, Ehrenwinkler, Ralf, Eisenhamer, Jonathan, Eisenhower, Michael, Elie, Michelle, Elliott, James, Elliott, Kyle, Ellis, Tracy, Engesser, Michael, Espinoza, Nestor, Etienne, Odessa, Etxaluze, Mireya, Falini, Patrick, Feeney, Matthew, Ferry, Malcolm, Filippazzo, Joseph, Fincham, Brian, Fix, Mees, Flagey, Nicolas, Florian, Michael, Flynn, Jim, Fontanella, Erin, Ford, Terrance, Forshay, Peter, Fox, Ori, Franz, David, Fu, Henry, Fullerton, Alexander, Galkin, Sergey, Galyer, Anthony, Marin, Macarena Garcia, Gardner, Jonathan, Gardner, Lisa, Garland, Dennis, Garrett, Bruce, Gasman, Danny, Gaspar, Andras, Gaudreau, Daniel, Gauthier, Peter, Geers, Vincent, Geithner, Paul, Gennaro, Mario, Giardino, Giovanna, Girard, Julien, Giuliano, Mark, Glassmire, Kirk, Glauser, Adrian, Glazer, Stuart, Godfrey, John, Golimowski, David, Gollnitz, David, Gong, Fan, Gonzaga, Shireen, Gordon, Michael, Gordon, Karl, Goudfrooij, Paul, Greene, Thomas, Greenhouse, Matthew, Grimaldi, Stefano, Groebner, Andrew, Grundy, Timothy, Guillard, Pierre, Gutman, Irvin, Ha, Kong Q., Haderlein, Peter, Hagedorn, Andria, Hainline, Kevin, Haley, Craig, Hami, Maryam, Hamilton, Forrest, Hammel, Heidi, Hansen, Carl, Harkins, Tom, Harr, Michael, Hart, Jessica, Hart, Quyen, Hartig, George, Hashimoto, Ryan, Haskins, Sujee, Hathaway, William, Havey, Keith, Hayden, Brian, Hecht, Karen, Heller-Boyer, Chris, Henriques, Caroline, Henry, Alaina, Hermann, Karl, Hernandez, Scarlin, Hesman, Brigette, Hicks, Brian, Hilbert, Bryan, Hines, Dean, Hoffman, Melissa, Holfeltz, Sherie, Holler, Bryan J., Hoppa, Jennifer, Hott, Kyle, Howard, Joseph, Howard, Rick, Hunter, Alexander, Hunter, David, Hurst, Brendan, Husemann, Bernd, Hustak, Leah, Ignat, Luminita Ilinca, Illingworth, Garth, Irish, Sandra, Jackson, Wallace, Jahromi, Amir, Jakobsen, Peter, James, LeAndrea, James, Bryan, Januszewski, William, Jenkins, Ann, Jirdeh, Hussein, Johnson, Phillip, Johnson, Timothy, Jones, Vicki, Jones, Ron, Jones, Danny, Jones, Olivia, Jordan, Ian, Jordan, Margaret, Jurczyk, Sarah, Jurling, Alden, Kaleida, Catherine, Kalmanson, Phillip, Kammerer, Jens, Kang, Huijo, Kao, Shaw-Hong, Karakla, Diane, Kavanagh, Patrick, Kelly, Doug, Kendrew, Sarah, Kennedy, Herbert, Kenny, Deborah, Keski-kuha, Ritva, Keyes, Charles, Kidwell, Richard, Kinzel, Wayne, Kirk, Jeff, Kirkpatrick, Mark, Kirshenblat, Danielle, Klaassen, Pamela, Knapp, Bryan, Knight, J. Scott, Knollenberg, Perry, Koehler, Robert, Koekemoer, Anton, Kovacs, Aiden, Kulp, Trey, Kumari, Nimisha, Kyprianou, Mark, La Massa, Stephanie, Labador, Aurora, Ortega, Alvaro Labiano, Lagage, Pierre-Olivier, Lajoie, Charles-Phillipe, Lallo, Matthew, Lam, May, Lamb, Tracy, Lambros, Scott, Lampenfield, Richard, Langston, James, Larson, Kirsten, Law, David, Lawrence, Jon, Lee, David, Leisenring, Jarron, Lepo, Kelly, Leveille, Michael, Levenson, Nancy, Levine, Marie, Levy, Zena, Lewis, Dan, Lewis, Hannah, Libralato, Mattia, Lightsey, Paul, Link, Miranda, Liu, Lily, Lo, Amy, Lockwood, Alexandra, Logue, Ryan, Long, Chris, Long, Douglas, Loomis, Charles, Lopez-Caniego, Marcos, Alvarez, Jose Lorenzo, Love-Pruitt, Jennifer, Lucy, Adrian, Luetzgendorf, Nora, Maghami, Peiman, Maiolino, Roberto, Major, Melissa, Malla, Sunita, Malumuth, Eliot, Manjavacas, Elena, Mannfolk, Crystal, Marrione, Amanda, Marston, Anthony, Martel, André, Maschmann, Marc, Masci, Gregory, Masciarelli, Michaela, Maszkiewicz, Michael, Mather, John, McKenzie, Kenny, McLean, Brian, McMaster, Matthew, Melbourne, Katie, Meléndez, Marcio, Menzel, Michael, Merz, Kaiya, Meyett, Michele, Meza, Luis, Miskey, Cherie, Misselt, Karl, Moller, Christopher, Morrison, Jane, Morse, Ernie, Moseley, Harvey, Mosier, Gary, Mountain, Matt, Mueckay, Julio, Mueller, Michael, Mullally, Susan, Murphy, Jess, Murray, Katherine, Murray, Claire, Mustelier, David, Muzerolle, James, Mycroft, Matthew, Myers, Richard, Myrick, Kaila, Nanavati, Shashvat, Nance, Elizabeth, Nayak, Omnarayani, Naylor, Bret, Nelan, Edmund, Nickson, Bryony, Nielson, Alethea, Nieto-Santisteban, Maria, Nikolov, Nikolay, Noriega-Crespo, Alberto, O'Shaughnessy, Brian, O'Sullivan, Brian, Ochs, William, Ogle, Patrick, Oleszczuk, Brenda, Olmsted, Joseph, Osborne, Shannon, Ottens, Richard, Owens, Beverly, Pacifici, Camilla, Pagan, Alyssa, Page, James, Park, Sang, Parrish, Keith, Patapis, Polychronis, Paul, Lee, Pauly, Tyler, Pavlovsky, Cheryl, Pedder, Andrew, Peek, Matthew, Pena-Guerrero, Maria, Pennanen, Konstantin, Perez, Yesenia, Perna, Michele, Perriello, Beth, Phillips, Kevin, Pietraszkiewicz, Martin, Pinaud, Jean-Paul, Pirzkal, Norbert, Pitman, Joseph, Piwowar, Aidan, Platais, Vera, Player, Danielle, Plesha, Rachel, Pollizi, Joe, Polster, Ethan, Pontoppidan, Klaus, Porterfield, Blair, Proffitt, Charles, Pueyo, Laurent, Pulliam, Christine, Quirt, Brian, Neira, Irma Quispe, Alarcon, Rafael Ramos, Ramsay, Leah, Rapp, Greg, Rapp, Robert, Rauscher, Bernard, Ravindranath, Swara, Rawle, Timothy, Regan, Michael, Reichard, Timothy A., Reis, Carl, Ressler, Michael E., Rest, Armin, Reynolds, Paul, Rhue, Timothy, Richon, Karen, Rickman, Emily, Ridgaway, Michael, Ritchie, Christine, Rix, Hans-Walter, Robberto, Massimo, Robinson, Gregory, Robinson, Michael, Robinson, Orion, Rock, Frank, Rodriguez, David, Del Pino, Bruno Rodriguez, Roellig, Thomas, Rohrbach, Scott, Roman, Anthony, Romelfanger, Fred, Rose, Perry, Roteliuk, Anthony, Roth, Marc, Rothwell, Braden, Rowlands, Neil, Roy, Arpita, Royer, Pierre, Royle, Patricia, Rui, Chunlei, Rumler, Peter, Runnels, Joel, Russ, Melissa, Rustamkulov, Zafar, Ryden, Grant, Ryer, Holly, Sabata, Modhumita, Sabatke, Derek, Sabbi, Elena, Samuelson, Bridget, Sapp, Benjamin, Sappington, Bradley, Sargent, B., Sauer, Arne, Scheithauer, Silvia, Schlawin, Everett, Schlitz, Joseph, Schmitz, Tyler, Schneider, Analyn, Schreiber, Jürgen, Schulze, Vonessa, Schwab, Ryan, Scott, John, Sembach, Kenneth, Shanahan, Clare, Shaughnessy, Bryan, Shaw, Richard, Shawger, Nanci, Shay, Christopher, Sheehan, Evan, Shen, Sharon, Sherman, Allan, Shiao, Bernard, Shih, Hsin-Yi, Shivaei, Irene, Sienkiewicz, Matthew, Sing, David, Sirianni, Marco, Sivaramakrishnan, Anand, Skipper, Joy, Sloan, Gregory, Slocum, Christine, Slowinski, Steven, Smith, Erin, Smith, Eric, Smith, Denise, Smith, Corbett, Snyder, Gregory, Soh, Warren, Sohn, Tony, Soto, Christian, Spencer, Richard, Stallcup, Scott, Stansberry, John, Starr, Carl, Starr, Elysia, Stewart, Alphonso, Stiavelli, Massimo, Straughn, Amber, Strickland, David, Stys, Jeff, Summers, Francis, Sun, Fengwu, Sunnquist, Ben, Swade, Daryl, Swam, Michael, Swaters, Robert, Swoish, Robby, Taylor, Joanna M., Taylor, Rolanda, Plate, Maurice Te, Tea, Mason, Teague, Kelly, Telfer, Randal, Temim, Tea, Thatte, Deepashri, Thompson, Christopher, Thompson, Linda, Thomson, Shaun, Tikkanen, Tuomo, Tippet, William, Todd, Connor, Toolan, Sharon, Tran, Hien, Trejo, Edwin, Truong, Justin, Tsukamoto, Chris, Tustain, Samuel, Tyra, Harrison, Ubeda, Leonardo, Underwood, Kelli, Uzzo, Michael, Van Campen, Julie, Vandal, Thomas, Vandenbussche, Bart, Vila, Begoña, Volk, Kevin, Wahlgren, Glenn, Waldman, Mark, Walker, Chanda, Wander, Michel, Warfield, Christine, Warner, Gerald, Wasiak, Matthew, Watkins, Mitchell, Weaver, Andrew, Weilert, Mark, Weiser, Nick, Weiss, Ben, Weissman, Sarah, Welty, Alan, West, Garrett, Wheate, Lauren, Wheatley, Elizabeth, Wheeler, Thomas, White, Rick, Whiteaker, Kevin, Whitehouse, Paul, Whiteleather, Jennifer, Whitman, William, Williams, Christina, Willmer, Christopher, Willoughby, Scott, Wilson, Andrew, Wirth, Gregory, Wislowski, Emily, Wolf, Erin, Wolfe, David, Wolff, Schuyler, Workman, Bill, Wright, Ray, Wu, Carl, Wu, Rai, Wymer, Kristen, Yates, Kayla, Yeager, Christopher, Yeates, Jared, Yerger, Ethan, Yoon, Jinmi, Young, Alice, Yu, Susan, Zak, Dean, Zeidler, Peter, Zhou, Julia, Zielinski, Thomas, Zincke, Cristian, and Zonak, Stephanie
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: This paper characterizes the actual science performance of the James Webb Space Telescope (JWST), as determined from the six month commissioning period. We summarize the performance of the spacecraft, telescope, science instruments, and ground system, with an emphasis on differences from pre-launch expectations. Commissioning has made clear that JWST is fully capable of achieving the discoveries for which it was built. Moreover, almost across the board, the science performance of JWST is better than expected; in most cases, JWST will go deeper faster than expected. The telescope and instrument suite have demonstrated the sensitivity, stability, image quality, and spectral range that are necessary to transform our understanding of the cosmos through observations spanning from near-earth asteroids to the most distant galaxies., Comment: 5th version as accepted to PASP; 31 pages, 18 figures; https://iopscience.iop.org/article/10.1088/1538-3873/acb293
Published: 2022
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28. The ESDP (European Security and Defense Policy) and civilian rapid reaction: Adding value is harder than expected

Author: Jakobsen, Peter Viggo
Subjects: SECURITY, NATIONAL - Europe, RAPID DEPLOYMENT FORCES - European Union, CIVILIAN EMPLOYEES - European Union, CRISIS MANAGEMENT
Abstract: tab chart bibliog
Published: 2006

29. Spectroscopic confirmation of four metal-poor galaxies at z = 10.3–13.2

Author: Curtis-Lake, Emma, Carniani, Stefano, Cameron, Alex, Charlot, Stephane, Jakobsen, Peter, Maiolino, Roberto, Bunker, Andrew, Witstok, Joris, Smit, Renske, Chevallard, Jacopo, Willott, Chris, Ferruit, Pierre, Arribas, Santiago, Bonaventura, Nina, Curti, Mirko, D’Eugenio, Francesco, Franx, Marijn, Giardino, Giovanna, Looser, Tobias J., Lützgendorf, Nora, Maseda, Michael V., Rawle, Tim, Rix, Hans-Walter, Rodríguez del Pino, Bruno, Übler, Hannah, Sirianni, Marco, Dressler, Alan, Egami, Eiichi, Eisenstein, Daniel J., Endsley, Ryan, Hainline, Kevin, Hausen, Ryan, Johnson, Benjamin D., Rieke, Marcia, Robertson, Brant, Shivaei, Irene, Stark, Daniel P., Tacchella, Sandro, Williams, Christina C., Willmer, Christopher N. A., Bhatawdekar, Rachana, Bowler, Rebecca, Boyett, Kristan, Chen, Zuyi, de Graaff, Anna, Helton, Jakob M., Hviding, Raphael E., Jones, Gareth C., Kumari, Nimisha, Lyu, Jianwei, Nelson, Erica, Perna, Michele, Sandles, Lester, Saxena, Aayush, Suess, Katherine A., Sun, Fengwu, Topping, Michael W., Wallace, Imaan E. B., and Whitler, Lily
Published: 2023
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30. Territorial Structure: An Early Marxist Theorisation of Geography

Author: Jakobsen, Peter, Larsen, Henrik Gutzon, Jakobsen, Peter, editor, Jönsson, Erik, editor, and Larsen, Henrik Gutzon, editor
Published: 2022
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31. Geographies and Theories of Geography: An Introduction

Author: Jakobsen, Peter, Jönsson, Erik, Larsen, Henrik Gutzon, Jakobsen, Peter, editor, Jönsson, Erik, editor, and Larsen, Henrik Gutzon, editor
Published: 2022
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32. Humanitarian Intervention and Great Power Management in a Post-hegemonic World Order

Author: Jakobsen, Peter Viggo, Knudsen, Tonny Brems, Cross, Mai'a K. Davis, Series Editor, de Carvalho, Benjamin, Series Editor, Hameiri, Shahar, Series Editor, Jørgensen, Knud Erik, Series Editor, Sending, Ole Jacob, Series Editor, Zarakol, Ayşe, Series Editor, Knudsen, Tonny Brems, editor, and Navari, Cornelia, editor
Published: 2022
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33. Simulating and interpreting deep observations in the Hubble Ultra Deep Field with the JWST/NIRSpec low-resolution 'prism'

Author: Chevallard, Jacopo, Curtis-Lake, Emma, Charlot, Stephane, Ferruit, Pierre, Giardino, Giovanna, Franx, Marijn, Maseda, Michael V., Amorin, Ricardo, Arribas, Santiago, Bunker, Andy, Carniani, Stefano, Husemann, Bernd, Jakobsen, Peter, Maiolino, Roberto, Pforr, Janine, Rawle, Timothy D., Rix, Hans-Walter, Smit, Renske, and Willott, Chris J.
Subjects: Astrophysics - Astrophysics of Galaxies
Abstract: The James Webb Space Telescope (JWST) will enable the detection of optical emission lines in galaxies spanning a broad range of luminosities out to redshifts z>10. Measurements of key galaxy properties, such as star formation rate and metallicity, through these observations will provide unique insight into, e.g., the role of feedback from stars and active galactic nuclei (AGNs) in regulating galaxy evolution, the co-evolution of AGNs and host galaxies, the physical origin of the 'main sequence' of star-forming galaxies and the contribution by star-forming galaxies to cosmic reionization. We present an original framework to simulate and analyse observations performed with the Near Infrared Spectrograph (NIRSpec) on board JWST. We use the BEAGLE tool (BayEsian Analysis of GaLaxy sEds) to build a semi-empirical catalogue of galaxy spectra based on photometric spectral energy distributions (SEDs) of dropout galaxies in the Hubble Ultra Deep Field (HUDF). We demonstrate that the resulting catalogue of galaxy spectra satisfies different types of observational constraints on high redshift galaxies, and use it as input to simulate NIRSpec/prism (R~100) observations. We show that a single 'deep' (~100 ks) NIRSpec/prism pointing in the HUDF will enable S/N>3 detections of multiple optical emission lines in ~30 (~60) galaxies at z>6 (z~4-6) down to m_F160W<30 AB mag. Such observations will allow measurements of galaxy star formation rates, ionization parameters and gas-phase metallicities within factors of 1.5, mass-to-light ratios within a factor of 2, galaxy ages within a factor of 3 and V-band attenuation optical depths with a precision of 0.3., Comment: accepted for publication in MNRAS
Published: 2017
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34. Deterrence in Peace Operations: Look Beyond the Battlefield and Expand the Number of Targets and Influence Mechanisms

Author: Jakobsen, Peter Viggo, Oonincx, Patrick, Editor-in-Chief, Vos, Lisette, Managing Editor, Osinga, Frans, editor, and Sweijs, Tim, editor
Published: 2021
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35. Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic Star Formation Rate Density 300 Myr after the Big Bang.

Author: Robertson, Brant, Johnson, Benjamin D., Tacchella, Sandro, Eisenstein, Daniel J., Hainline, Kevin, Arribas, Santiago, Baker, William M., Bunker, Andrew J., Carniani, Stefano, Cargile, Phillip A., Carreira, Courtney, Charlot, Stephane, Chevallard, Jacopo, Curti, Mirko, Curtis-Lake, Emma, D'Eugenio, Francesco, Egami, Eiichi, Hausen, Ryan, Helton, Jakob M., and Jakobsen, Peter
Subjects: STAR formation, GALAXIES, STELLAR mass, STELLAR luminosity function, DARK matter, REDSHIFT, OPTICAL telescopes
Abstract: We characterize the earliest galaxy population in the JADES Origins Field, the deepest imaging field observed with JWST. We make use of ancillary Hubble Space Telescope optical images (five filters spanning 0.4–0.9 μ m) and novel JWST images with 14 filters spanning 0.8−5 μ m, including seven medium-band filters, and reaching total exposure times of up to 46 hr per filter. We combine all our data at >2.3 μ m to construct an ultradeep image, reaching as deep as ≈31.4 AB mag in the stack and 30.3–31.0 AB mag (5 σ, r = 0.″1 circular aperture) in individual filters. We measure photometric redshifts and use robust selection criteria to identify a sample of eight galaxy candidates at redshifts z = 11.5−15. These objects show compact half-light radii of R 1/2 ∼ 50−200 pc, stellar masses of M ⋆ ∼ 107−108 M ☉, and star formation rates ∼ 0.1−1 M ☉ yr−1. Our search finds no candidates at 15 < z < 20, placing upper limits at these redshifts. We develop a forward-modeling approach to infer the properties of the evolving luminosity function without binning in redshift or luminosity that marginalizes over the photometric redshift uncertainty of our candidate galaxies and incorporates the impact of nondetections. We find a z = 12 luminosity function in good agreement with prior results, and that the luminosity function normalization and UV luminosity density decline by a factor of ∼2.5 from z = 12 to z = 14. We discuss the possible implications of our results in the context of theoretical models for evolution of the dark matter halo mass function. [ABSTRACT FROM AUTHOR]
Published: 2024
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36. 20. Coercive Diplomacy: Countering War-Threatening Crises and Armed Conflicts

Author: Jakobsen, Peter Viggo, primary
Published: 2022
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37. The post-hegemonic turn in humanitarian intervention: regional ownership and troubled great power management

Author: Jakobsen, Peter Viggo, primary and Knudsen, Tonny Brems, additional
Published: 2024
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38. A model-based approach to the spatial and spectral calibration of NIRSpec onboard JWST

Author: Dorner, Bernhard, Giardino, Giovanna, Ferruit, Pierre, de Oliveira, Catarina Alves, Birkmann, Stephan M., Böker, Torsten, De Marchi, Guido, Gnata, Xavier, Köhler, Jess, Sirianni, Marco, and Jakobsen, Peter
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: Context: The NIRSpec instrument for the James Webb Space Telescope (JWST) can be operated in multiobject (MOS), long-slit, and integral field (IFU) mode with spectral resolutions from 100 to 2700. Its MOS mode uses about a quarter of a million individually addressable minislits for object selection, covering a field of view of $\sim$9 $\mathrm{arcmin}^2$. Aims: The pipeline used to extract wavelength-calibrated spectra from NIRSpec detector images relies heavily on a model of NIRSpec optical geometry. We demonstrate how dedicated calibration data from a small subset of NIRSpec modes and apertures can be used to optimize this parametric model to the necessary levels of fidelity. Methods: Following an iterative procedure, the initial fiducial values of the model parameters are manually adjusted and then automatically optimized, so that the model predicted location of the images and spectral lines from the fixed slits, the IFU, and a small subset of the MOS apertures matches their measured location in the main optical planes of the instrument. Results: The NIRSpec parametric model is able to reproduce the spatial and spectral position of the input spectra with high fidelity. The intrinsic accuracy (1-sigma, RMS) of the model, as measured from the extracted calibration spectra, is better than 1/10 of a pixel along the spatial direction and better than 1/20 of a resolution element in the spectral direction for all of the grating-based spectral modes. This is fully consistent with the corresponding allocation in the spatial and spectral calibration budgets of NIRSpec., Comment: 17 pages, 11 figures, accepted for publication in A&A
Published: 2016
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39. Success defying all expectations: How and why limited use of force helped to end Somali piracy.

Author: Jakobsen, Peter Viggo and Henningsen, Troels Burchall
Subjects: *SOMALIS, *GREAT powers (International relations), *SUCCESS, *ARMED Forces, *INTERVENTION (International law)
Abstract: This article explains how and why limited use of force contributed to the surprising elimination of Somali piracy that no-one had expected. It proposes an analytical framework identifying four conditions for limited force success derived from the existing literature: (1) great power leadership, (2) Support at the international, regional and local levels, (3) Effective military forces capable of establishing escalation dominance, and (4) Limited use of force minimising collateral damage and adversary casualties. The analysis demonstrates that these four factors apply in the Somali case and explains how and why they were created even though implementation was costly and incentives for free-riding high. Although the Somali success will be hard to replicate, this case remains important because it improves our understanding of the conditions under which limited use of force can contribute to sustainable outcomes. [ABSTRACT FROM AUTHOR]
Published: 2024
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40. GA-NIFS: Black hole and host galaxy properties of two z ≃ 6.8 quasars from the NIRSpec IFU

Author: Marshall, Madeline A., primary, Perna, Michele, additional, Willott, Chris J., additional, Maiolino, Roberto, additional, Scholtz, Jan, additional, Übler, Hannah, additional, Carniani, Stefano, additional, Arribas, Santiago, additional, Lützgendorf, Nora, additional, Bunker, Andrew J., additional, Charlot, Stephane, additional, Ferruit, Pierre, additional, Jakobsen, Peter, additional, Rix, Hans-Walter, additional, Rodríguez Del Pino, Bruno, additional, Böker, Torsten, additional, Cameron, Alex J., additional, Cresci, Giovanni, additional, Curtis-Lake, Emma, additional, Jones, Gareth C., additional, Kumari, Nimisha, additional, Pérez-González, Pablo G., additional, and Reed, Sophie L., additional
Published: 2023
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41. JADES: Discovery of extremely high equivalent width Lyman-α emission from a faint galaxy within an ionized bubble at z = 7.3

Author: Saxena, Aayush, primary, Robertson, Brant E., additional, Bunker, Andrew J., additional, Endsley, Ryan, additional, Cameron, Alex J., additional, Charlot, Stephane, additional, Simmonds, Charlotte, additional, Tacchella, Sandro, additional, Witstok, Joris, additional, Willott, Chris, additional, Carniani, Stefano, additional, Curtis-Lake, Emma, additional, Ferruit, Pierre, additional, Jakobsen, Peter, additional, Arribas, Santiago, additional, Chevallard, Jacopo, additional, Curti, Mirko, additional, D’Eugenio, Francesco, additional, De Graaff, Anna, additional, Jones, Gareth C., additional, Looser, Tobias J., additional, Maseda, Michael V., additional, Rawle, Tim, additional, Rix, Hans-Walter, additional, Del Pino, Bruno Rodríguez, additional, Smit, Renske, additional, Übler, Hannah, additional, Eisenstein, Daniel J., additional, Hainline, Kevin, additional, Hausen, Ryan, additional, Johnson, Benjamin D., additional, Rieke, Marcia, additional, Williams, Christina C., additional, Willmer, Christopher N. A., additional, Baker, William M., additional, Bhatawdekar, Rachana, additional, Bowler, Rebecca, additional, Boyett, Kristan, additional, Chen, Zuyi, additional, Egami, Eiichi, additional, Ji, Zhiyuan, additional, Kumari, Nimisha, additional, Nelson, Erica, additional, Perna, Michele, additional, Sandles, Lester, additional, Scholtz, Jan, additional, and Shivaei, Irene, additional
Published: 2023
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42. Coercive Diplomacy as Crisis Management

Author: Viggo Jakobsen, Peter
Published: 2020
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43. Denmark in NATO 1

Author: Jakobsen, Peter Viggo, primary
Published: 2020
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44. Deterrence in Peace Operations: Look Beyond the Battlefield and Expand the Number of Targets and Influence Mechanisms

Author: Jakobsen, Peter Viggo, primary
Published: 2020
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45. National Interest, Humanitarianism or CNN: What Triggers UN Peace Enforcement After the Cold War?*

Author: Jakobsen, Peter Viggo, primary
Published: 2020
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46. JADES: Probing interstellar medium conditions at z ∼ 5.5–9.5 with ultra-deep JWST/NIRSpec spectroscopy

Author: Cameron, Alex J., primary, Saxena, Aayush, additional, Bunker, Andrew J., additional, D’Eugenio, Francesco, additional, Carniani, Stefano, additional, Maiolino, Roberto, additional, Curtis-Lake, Emma, additional, Ferruit, Pierre, additional, Jakobsen, Peter, additional, Arribas, Santiago, additional, Bonaventura, Nina, additional, Charlot, Stephane, additional, Chevallard, Jacopo, additional, Curti, Mirko, additional, Looser, Tobias J., additional, Maseda, Michael V., additional, Rawle, Tim, additional, Rodríguez Del Pino, Bruno, additional, Smit, Renske, additional, Übler, Hannah, additional, Willott, Chris, additional, Witstok, Joris, additional, Egami, Eiichi, additional, Eisenstein, Daniel J., additional, Johnson, Benjamin D., additional, Hainline, Kevin, additional, Rieke, Marcia, additional, Robertson, Brant E., additional, Stark, Daniel P., additional, Tacchella, Sandro, additional, Williams, Christina C., additional, Willmer, Christopher N. A., additional, Bhatawdekar, Rachana, additional, Bowler, Rebecca, additional, Boyett, Kristan, additional, Circosta, Chiara, additional, Helton, Jakob M., additional, Jones, Gareth C., additional, Kumari, Nimisha, additional, Ji, Zhiyuan, additional, Nelson, Erica, additional, Parlanti, Eleonora, additional, Sandles, Lester, additional, Scholtz, Jan, additional, and Sun, Fengwu, additional
Published: 2023
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47. GA-NIFS: A massive black hole in a low-metallicity AGN at z ∼ 5.55 revealed by JWST/NIRSpec IFS

Author: Übler, Hannah, primary, Maiolino, Roberto, additional, Curtis-Lake, Emma, additional, Pérez-González, Pablo G., additional, Curti, Mirko, additional, Perna, Michele, additional, Arribas, Santiago, additional, Charlot, Stéphane, additional, Marshall, Madeline A., additional, D’Eugenio, Francesco, additional, Scholtz, Jan, additional, Bunker, Andrew, additional, Carniani, Stefano, additional, Ferruit, Pierre, additional, Jakobsen, Peter, additional, Rix, Hans-Walter, additional, Rodríguez Del Pino, Bruno, additional, Willott, Chris J., additional, Boeker, Torsten, additional, Cresci, Giovanni, additional, Jones, Gareth C., additional, Kumari, Nimisha, additional, and Rawle, Tim, additional
Published: 2023
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48. JADES NIRSpec Spectroscopy of GN-z11: Lyman-α emission and possible enhanced nitrogen abundance in a z = 10.60 luminous galaxy

Author: Bunker, Andrew J., primary, Saxena, Aayush, additional, Cameron, Alex J., additional, Willott, Chris J., additional, Curtis-Lake, Emma, additional, Jakobsen, Peter, additional, Carniani, Stefano, additional, Smit, Renske, additional, Maiolino, Roberto, additional, Witstok, Joris, additional, Curti, Mirko, additional, D’Eugenio, Francesco, additional, Jones, Gareth C., additional, Ferruit, Pierre, additional, Arribas, Santiago, additional, Charlot, Stephane, additional, Chevallard, Jacopo, additional, Giardino, Giovanna, additional, de Graaff, Anna, additional, Looser, Tobias J., additional, Lützgendorf, Nora, additional, Maseda, Michael V., additional, Rawle, Tim, additional, Rix, Hans-Walter, additional, Del Pino, Bruno Rodríguez, additional, Alberts, Stacey, additional, Egami, Eiichi, additional, Eisenstein, Daniel J., additional, Endsley, Ryan, additional, Hainline, Kevin, additional, Hausen, Ryan, additional, Johnson, Benjamin D., additional, Rieke, George, additional, Rieke, Marcia, additional, Robertson, Brant E., additional, Shivaei, Irene, additional, Stark, Daniel P., additional, Sun, Fengwu, additional, Tacchella, Sandro, additional, Tang, Mengtao, additional, Williams, Christina C., additional, Willmer, Christopher N. A., additional, Baker, William M., additional, Baum, Stefi, additional, Bhatawdekar, Rachana, additional, Bowler, Rebecca, additional, Boyett, Kristan, additional, Chen, Zuyi, additional, Circosta, Chiara, additional, Helton, Jakob M., additional, Ji, Zhiyuan, additional, Kumari, Nimisha, additional, Lyu, Jianwei, additional, Nelson, Erica, additional, Parlanti, Eleonora, additional, Perna, Michele, additional, Sandles, Lester, additional, Scholtz, Jan, additional, Suess, Katherine A., additional, Topping, Michael W., additional, Übler, Hannah, additional, Wallace, Imaan E. B., additional, and Whitler, Lily, additional
Published: 2023
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49. Still Punching Above Their Weight? Nordic Cooperation in Peace Operations after the Cold War

Author: Jakobsen, Peter Viggo, primary
Published: 2020
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50. The James Webb Space Telescope

Author: Gardner, Jonathan P., Mather, John C., Clampin, Mark, Doyon, Rene, Greenhouse, Matthew A., Hammel, Heidi B., Hutchings, John B., Jakobsen, Peter, Lilly, Simon J., Long, Knox S., Lunine, Jonathan I., McCaughrean, Mark J., Mountain, Matt, Nella, John, Rieke, George H., Rieke, Marcia J., Rix, Hans-Walter, Smith, Eric P., Sonneborn, George, Stiavelli, Massimo, Stockman, H. S., Windhorst, Rogier A., and Wright, Gillian S.
Subjects: Astrophysics
Abstract: The James Webb Space Telescope (JWST) is a large (6.6m), cold (50K), infrared-optimized space observatory that will be launched early in the next decade. The observatory will have four instruments: a near-infrared camera, a near-infrared multi-object spectrograph, and a tunable filter imager will cover the wavelength range, 0.6 to 5.0 microns, while the mid-infrared instrument will do both imaging and spectroscopy from 5.0 to 29 microns. The JWST science goals are divided into four themes. The End of the Dark Ages: First Light and Reionization theme seeks to identify the first luminous sources to form and to determine the ionization history of the early universe. The Assembly of Galaxies theme seeks to determine how galaxies and the dark matter, gas, stars, metals, morphological structures, and active nuclei within them evolved from the epoch of reionization to the present day. The Birth of Stars and Protoplanetary Systems theme seeks to unravel the birth and early evolution of stars, from infall on to dust-enshrouded protostars to the genesis of planetary systems. The Planetary Systems and the Origins of Life theme seeks to determine the physical and chemical properties of planetary systems including our own, and investigate the potential for the origins of life in those systems. To enable these observations, JWST consists of a telescope, an instrument package, a spacecraft and a sunshield. The telescope consists of 18 beryllium segments, some of which are deployed. The segments will be brought into optical alignment on-orbit through a process of periodic wavefront sensing and control. The JWST operations plan is based on that used for previous space observatories, and the majority of JWST observing time will be allocated to the international astronomical community through annual peer-reviewed proposal opportunities., Comment: 96 pages, including 48 figures and 15 tables, accepted by Space Science Reviews
Published: 2006
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