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18 results on '"Krzesiński, Jurek"'

1. The Milky Way Tomography with SDSS. III. Stellar Kinematics

Author

Bond, Nicholas A., Ivezic, Zeljko, Sesar, Branimir, Juric, Mario, Munn, Jeffrey A., Kowalski, Adam, Loebman, Sarah, Roskar, Rok, Beers, Timothy C., Dalcanton, Julianne, Rockosi, Constance M., Yanny, Brian, Newberg, Heidi J., Allende Prieto, Carlos, Wilhelm, Ron, Lee, Young Sun, Sivarani, Thirupathi, Majewski, Steven R., Norris, John E., Bailer-Jones, Coryn A. L., Fiorentin, Paola Re, Schlegel, David, Uomoto, Alan, Lupton, Robert H., Knapp, Gillian R., Gunn, James E., Covey, Kevin R., Smith, J. Allyn, Miknaitis, Gajus, Doi, Mamoru, Tanaka, Masayuki, Fukugita, Masataka, Kent, Steve, Finkbeiner, Douglas, Quinn, Tom R., Hawley, Suzanne, Anderson, Scott, Kiuchi, Furea, Chen, Alex, Bushong, James, Sohi, Harkirat, Haggard, Daryl, Kimball, Amy, McGurk, Rosalie, Barentine, John, Brewington, Howard, Harvanek, Mike, Kleinman, Scott, Krzesinski, Jurek, Long, Dan, Nitta, Atsuko, Snedden, Stephanie, Lee, Brian, Pier, Jeffrey R., Harris, Hugh, Brinkmann, Jonathan, and Schneider, Donald P.

Subjects
Galaxy: disk, Galaxy: halo, Galaxy: kinematics and dynamics, Galaxy: stellar content, Galaxy: structure, methods: data analysis, stars: statistics
Abstract

We study Milky Way kinematics using a sample of 18.8 million main-sequence stars with r < 20 and proper-motion measurements derived from Sloan Digital Sky Survey (SDSS) and POSS astrometry, including ~170,000 stars with radial-velocity measurements from the SDSS spectroscopic survey. Distances to stars are determined using a photometric-parallax relation, covering a distance range from ~100 pc to 10 kpc over a quarter of the sky at high Galactic latitudes (|b|>20°). We find that in the region defined by 1 kpc

Published
2010
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2. An Improved Photometric Calibration of the Sloan Digital Sky Survey Imaging Data

Author

Padmanabhan, Nikhil, Schlegel, David J., Finkbeiner, Douglas, Barentine, J. C., Blanton, Michael R., Brewington, Howard J., Gunn, James E., Harvanek, Michael, Hogg, David W., Ivezic, Zeljko, Johnston, David, Kent, Stephen M., Kleinman, S. J., Knapp, Gillian R., Krzesinski, Jurek, Long, Dan, Neilsen, Eric H. Jr., Nitta, Atsuko, Loomis, Craig, Lupton, Robert H., Roweis, Sam, Snedden, Stephanie A., Strauss, Michael A., and Tucker, Douglas L.

Subjects
techniques: photometric
Abstract

We present an algorithm to photometrically calibrate wide-field optical imaging surveys, which simultaneously solves for the calibration parameters and relative stellar fluxes using overlapping observations. The algorithm decouples the problem of "relative" calibrations from that of "absolute" calibrations; the absolute calibration is reduced to determining a few numbers for the entire survey. We pay special attention to the spatial structure of the calibration errors, allowing one to isolate particular error modes in downstream analyses. Applying this to the SDSS imaging data, we achieve ~1% relative calibration errors across 8500 deg2 in griz; the errors are ~2% for the u band. These errors are dominated by unmodeled atmospheric variations at Apache Point Observatory. These calibrations, dubbed "ubercalibration," are now public with SDSS Data Release 6 and will be a part of subsequent SDSS data releases., Astronomy

Published
2008
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3. The Milky Way Tomography with SDSS. I. Stellar Number Density Distribution

Author

Juric, Mario, Ivezic, Zeljko, Brooks, Alyson, Lupton, Robert H., Schlegel, David, Finkbeiner, Douglas, Padmanabhan, Nikhil, Bond, Nicholas, Sesar, Branimir, Rockosi, Constance M., Knapp, Gillian R., Gunn, James E., Sumi, Takahiro, Schneider, Donald P., Barentine, J. C., Brewington, Howard J., Brinkmann, J., Fukugita, Masataka, Harvanek, Michael, Kleinman, S. J., Krzesinski, Jurek, Long, Dan, Neilsen, Eric H. Jr., Nitta, Atsuko, Snedden, Stephanie A., and York, Donald G.

Subjects
Galaxy: disk, Galaxy: fundamental parameters, Galaxy: halo, Galaxy: structure
Abstract

Using the photometric parallax method we estimate the distances to ~48 million stars detected by the Sloan Digital Sky Survey (SDSS) and map their three-dimensional number density distribution in the Galaxy. The currently available data sample the distance range from 100 pc to 20 kpc and cover 6500 deg2 of sky, mostly at high Galactic latitudes (|b| > 25). These stellar number density maps allow an investigation of the Galactic structure with no a priori assumptions about the functional form of its components. The data show strong evidence for a Galaxy consisting of an oblate halo, a disk component, and a number of localized overdensities. The number density distribution of stars as traced by M dwarfs in the solar neighborhood (D < 2 kpc) is well fit by two exponential disks (the thin and thick disk) with scale heights and lengths, bias corrected for an assumed 35% binary fraction, of H1 = 300 pc and L1 = 2600 pc, and H2 = 900 pc and L2 = 3600 pc, and local thick-to-thin disk density normalization ρthick(R☉)/ρthin(R☉) = 12% . We use the stars near main-sequence turnoff to measure the shape of the Galactic halo. We find a strong preference for oblate halo models, with best-fit axis ratio c/a = 0.64, ρH ∝ r−2.8 power-law profile, and the local halo-to-thin disk normalization of 0.5%. Based on a series of Monte Carlo simulations, we estimate the errors of derived model parameters not to be larger than ~20% for the disk scales and ~10% for the density normalization, with largest contributions to error coming from the uncertainty in calibration of the photometric parallax relation and poorly constrained binary fraction. While generally consistent with the above model, the measured density distribution shows a number of statistically significant localized deviations. In addition to known features, such as the Monoceros stream, we detect two overdensities in the thick disk region at cylindrical galactocentric radii and heights (R,Z) ~ (6.5,1.5) kpc and (R,Z) ~ (9.5,0.8) kpc and a remarkable density enhancement in the halo covering over 1000 deg2 of sky toward the constellation of Virgo, at distances of ~6-20 kpc. Compared to counts in a region symmetric with respect to the l = 0° line and with the same Galactic latitude, the Virgo overdensity is responsible for a factor of 2 number density excess and may be a nearby tidal stream or a low-surface brightness dwarf galaxy merging with the Milky Way. The u − g color distribution of stars associated with it implies metallicity lower than that of thick disk stars and consistent with the halo metallicity distribution. After removal of the resolved overdensities, the remaining data are consistent with a smooth density distribution; we detect no evidence of further unresolved clumpy substructure at scales ranging from ~50 pc in the disk to ~1-2 kpc in the halo., Astronomy

Published
2008
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4. The Milky Way Tomography with SDSS. II. Stellar Metallicity

Author

Ivezic, Zeljko, Sesar, Branimir, Juric, Mario, Bond, Nicholas, Dalcanton, Julianne, Rockosi, Constance M., Yanny, Brian, Newberg, Heidi J., Beers, Timothy C., Allende Prieto, Carlos, Wilhelm, Ron, Lee, Young Sun, Sivarani, Thirupathi, Norris, John E., Bailer‐Jones, Coryn A. L., Re Fiorentin, Paola, Schlegel, David, Uomoto, Alan, Lupton, Robert H., Knapp, Gillian R., Gunn, James E., Covey, Kevin R., Smith, J. Allyn, Miknaitis, Gajus, Doi, Mamoru, Tanaka, Masayuki, Fukugita, Masataka, Kent, Steve, Finkbeiner, Douglas, Munn, Jeffrey A., Pier, Jeffrey R., Quinn, Tom, Hawley, Suzanne, Anderson, Scott, Kiuchi, Furea, Chen, Alex, Bushong, James, Sohi, Harkirat, Haggard, Daryl, Kimball, Amy, Barentine, John, Brewington, Howard, Harvanek, Mike, Kleinman, Scott, Krzesinski, Jurek, Long, Dan, Nitta, Atsuko, Snedden, Stephanie, Lee, Brian, Harris, Hugh, Brinkmann, Jonathan, Schneider, Donald P., and York, Donald G.

Subjects
Galaxy: halo, Galaxy: kinematics and dynamics, Galaxy: stellar content, Galaxy: structure, methods: data analysis, stars: statistics
Abstract

Using effective temperature and metallicity derived from SDSS spectra for ~60,000 F- and G-type main-sequence stars (0.2 < g − r < 0.6), we develop polynomial models for estimating these parameters from the SDSS u − g and g − r colors. These photometric estimates have similar error properties as those determined from SDSS spectra. We apply this method to SDSS photometric data for over 2 million F/G stars and measure the unbiased metallicity distribution for a complete volume-limited sample of stars at distances between 500 pc and 8 kpc. The metallicity distribution can be exquisitely modeled using two components with a spatially varying number ratio, which correspond to disk and halo. The two components also possess the kinematics expected for disk and halo stars. The metallicity of the halo component is spatially invariant, while the median disk metallicity smoothly decreases with distance from the Galactic plane from –0.6 at 500 pc to –0.8 beyond several kiloparsecs. The absence of a correlation between metallicity and kinematics for disk stars is in a conflict with the traditional decomposition in terms of thin and thick disks. We detect coherent substructures in the kinematics-metallicity space, such as the Monoceros stream, which rotates faster than the LSR, and has a median metallicity of [Fe/H] = −0.95, with an rms scatter of only ~0.15 dex. We extrapolate our results to the performance expected from the Large Synoptic Survey Telescope (LSST) and estimate that LSST will obtain metallicity measurements accurate to 0.2 dex or better, with proper-motion measurements accurate to ~0.5 mas yr−1, for about 200 million F/G dwarf stars within a distance limit of ~100 kpc (g < 23.5)., Astronomy

Published
2008
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5. The Sixth Data Release of the Sloan Digital Sky Survey

Author

Adelman‐McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Allende Prieto, Carlos, Anderson, Kurt S.J., Anderson, Scott F., Annis, James, Bahcall, Neta A., Bailer‐Jones, C. A. L., Baldry, Ivan K., Barentine, J. C., Bassett, Bruce A., Becker, Andrew C., Beers, Timothy C., Bell, Eric F., Berlind, Andreas A., Bernardi, Mariangela, Blanton, Michael R., Bochanski, John J., Boroski, William N., Brinchmann, Jarle, Brinkmann, J., Brunner, Robert J., Budavári, Tamás, Carliles, Samuel, Carr, Michael A., Castander, Francisco J., Cinabro, David, Cool, R. J., Covey, Kevin R., Csabai, István, Cunha, Carlos E., Davenport, James R. A., Dilday, Ben, Doi, Mamoru, Eisenstein, Daniel James, Evans, Michael L., Fan, Xiaohui, Finkbeiner, Douglas, Friedman, Scott D., Frieman, Joshua A., Fukugita, Masataka, Gänsicke, Boris T., Gates, Evalyn, Gillespie, Bruce, Glazebrook, Karl, Gray, Jim, Grebel, Eva K., Gunn, James E., Gurbani, Vijay K., Hall, Patrick B., Harding, Paul, Harvanek, Michael, Hawley, Suzanne L., Hayes, Jeffrey, Heckman, Timothy M., Hendry, John S., Hindsley, Robert B., Hirata, Christopher M., Hogan, Craig J., Hogg, David W., Hyde, Joseph B., Ichikawa, Shin‐ichi, Ivezi?, ?eljko, Jester, Sebastian, Johnson, Jennifer A., Jorgensen, Anders M., Juric, Mario, Kent, Stephen M., Kessler, R., Kleinman, S. J., Knapp, G. R., Kron, Richard G., Krzesinski, Jurek, Kuropatkin, Nikolay, Lamb, Donald Q., Lampeitl, Hubert, Lebedeva, Svetlana, Lee, Young Sun, Leger, R. French, Lépine, Sébastien, Lima, Marcos, Lin, Huan, Long, Daniel C., Loomis, Craig P., Loveday, Jon, Lupton, Robert H., Malanushenko, Olena, Malanushenko, Viktor, Mandelbaum, Rachel, Margon, Bruce, Marriner, John P., Martínez‐Delgado, David, Matsubara, Takahiko, McGehee, Peregrine M., McKay, Timothy A., Meiksin, Avery, Morrison, Heather L., Munn, Jeffrey A., Nakajima, Reiko, Neilsen, Eric H. Jr., Newberg, Heidi Jo, Nichol, Robert C., Nicinski, Tom, Nieto‐Santisteban, Maria, Nitta, Atsuko, Okamura, Sadanori, Owen, Russell, Oyaizu, Hiroaki, Padmanabhan, Nikhil, Pan, Kaike, Park, Changbom, Peoples, Jr., John, Pier, Jeffrey R., Pope, Adrian C., Purger, Norbert, Raddick, M. Jordan, Re Fiorentin, Paola, Richards, Gordon T., Richmond, Michael W., Riess, Adam G., Rix, Hans‐Walter, Rockosi, Constance M., Sako, Masao, Schlegel, David J., Schneider, Donald P., Schreiber, Matthias R., Schwope, Axel D., Seljak, Uros, Sesar, Branimir, Sheldon, Erin, Shimasaku, Kazu, Sivarani, Thirupathi, Smith, J. Allyn, Snedden, Stephanie A., Steinmetz, Matthias, Strauss, Michael A., SubbaRao, Mark, Suto, Yasushi, Szalay, Alexander S., Szapudi, István, Szkody, Paula, Tegmark, Max, Thakar, Aniruddha R., Tremonti, Christy A., Tucker, Douglas L., Uomoto, Alan, Vanden Berk, Daniel E., Vandenberg, Jan, Vidrih, S., Vogeley, Michael S., Voges, Wolfgang, Vogt, Nicole P., Wadadekar, Yogesh, Weinberg, David H., West, Andrew A., White, Simon D. M., Wilhite, Brian C., Yanny, Brian, Yocum, D. R., York, Donald G., Zehavi, Idit, and Zucker, Daniel B.

Subjects
atlases, catalogs, surveys
Abstract

This paper describes the Sixth Data Release of the Sloan Digital Sky Survey. With this data release, the imaging of the northern Galactic cap is now complete. The survey contains images and parameters of roughly 287 million objects over 9583 deg2, including scans over a large range of Galactic latitudes and longitudes. The survey also includes 1.27 million spectra of stars, galaxies, quasars, and blank sky (for sky subtraction) selected over 7425 deg2. This release includes much more stellar spectroscopy than was available in previous data releases and also includes detailed estimates of stellar temperatures, gravities, and metallicities. The results of improved photometric calibration are now available, with uncertainties of roughly 1% in g, r, i, and z, and 2% in u, substantially better than the uncertainties in previous data releases. The spectra in this data release have improved wavelength and flux calibration, especially in the extreme blue and extreme red, leading to the qualitatively better determination of stellar types and radial velocities. The spectrophotometric fluxes are now tied to point-spread function magnitudes of stars rather than fiber magnitudes. This gives more robust results in the presence of seeing variations, but also implies a change in the spectrophotometric scale, which is now brighter by roughly 0.35 mag. Systematic errors in the velocity dispersions of galaxies have been fixed, and the results of two independent codes for determining spectral classifications and redshifts are made available. Additional spectral outputs are made available, including calibrated spectra from individual 15 minute exposures and the sky spectrum subtracted from each exposure. We also quantify a recently recognized underestimation of the brightnesses of galaxies of large angular extent due to poor sky subtraction; the bias can exceed 0.2 mag for galaxies brighter than r = 14 mag., Astronomy

Published
2008
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6. SDSS J103913.70+533029.7: A Super Star Cluster in the Outskirts of a Galaxy Merger

Author

Knapp, Gillian R., Tremonti, Christy A., Rockosi, Constance M., Schlegel, David J., Yanny, Brian, Beers, Timothy C., Allende Prieto, Carlos, Wilhelm, Ron, Lupton, Robert H., Gunn, James E., Niederste-Ostholt, Martin, Schneider, Donald P., Covey, Kevin, Seth, Anil, Ivezic, Zeljko, Eisenstein, Daniel J., Helmboldt, Joe, Finkbeiner, Douglas, Padmanabhan, Nikhil, Kleinman, Scot J., Long, Dan, Snedden, Stephanie A., Nitta, Atsuko, Harvanek, Michael, Krzesinski, Jurek, Brewington, Howard J., Barentine, John C., Newman, Peter R., Nielsen, Jr., Eric H., Fukugita, Masataka, and Brinkmann, J.

Subjects
galaxies: formation, galaxies: individual (NGC 3310), galaxies: starburst, galaxies: star clusters
Abstract

We describe the serendipitous discovery in the spectroscopic data of the Sloan Digital Sky Survey of a starlike object, SDSS J103913.70+533029.7, at a heliocentric radial velocity of +1012 km s-1. Its proximity in position and velocity to the spiral galaxy NGC 3310 suggests an association with the galaxy. At this distance, SDSS J103913.70+533029.7 has the luminosity of a super star cluster and a projected distance of 17 kpc from NGC 3310. Its spectroscopic and photometric properties imply a mass of >106 M⊙ and an age close to that of the tidal shells seen around NGC 3310, suggesting that it formed in the event that formed the shells., Astronomy

Published
2006
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7. The Third Data Release of the Sloan Digital Sky Survey

Author

Abazajian, Kevork, Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., Annis, James, Bahcall, Neta A., Baldry, Ivan K., Bastian, Steven, Berlind, Andreas, Bernardi, Mariangela, Blanton, Michael R., Bochanski, John J. Jr., Boroski, William N., Brewington, Howard J., Briggs, John W., Brinkmann, J., Brunner, Robert J., Budavári, Tamás, Carey, Larry N., Castander, Francisco J., Connolly, A. J., Covey, Kevin R., Csabai, István, Dalcanton, Julianne J., Doi, Mamoru, Dong, Feng, Eisenstein, Daniel James, Evans, Michael L., Fan, Xiaohui, Finkbeiner, Douglas, Friedman, Scott D., Frieman, Joshua A., Fukugita, Masataka, Gillespie, Bruce, Glazebrook, Karl, Gray, Jim, Grebel, Eva K., Gunn, James E., Gurbani, Vijay K., Hall, Patrick B., Hamabe, Masaru, Harbeck, Daniel, Harris, Frederick H., Harris, Hugh C., Harvanek, Michael, Hawley, Suzanne L., Hayes, Jeffrey, Heckman, Timothy M., Hendry, John S., Hennessy, Gregory S., Hindsley, Robert B., Hogan, Craig J., Hogg, David W., Holmgren, Donald J., Holtzman, Jon A., Ichikawa, Shin-ichi, Ichikawa, Takashi, Ivezic, Zeljko, Jester, Sebastian, Johnston, David E., Jorgensen, Anders M., Juri?, Mario, Kent, Stephen M., Kleinman, S. J., Knapp, G. R., Kniazev, Alexei Yu., Kron, Richard G., Krzesinski, Jurek, Lamb, Donald Q., Lampeitl, Hubert, Lee, Brian C., Lin, Huan, Long, Daniel C., Loveday, Jon, Lupton, Robert H., Mannery, Ed, Margon, Bruce, Martínez-Delgado, David, Matsubara, Takahiko, McGehee, Peregrine M., McKay, Timothy A., Meiksin, Avery, Ménard, Brice, Munn, Jeffrey A., Nash, Thomas, Neilsen, Eric H. Jr., Newberg, Heidi Jo, Newman, Peter R., Nichol, Robert C., Nicinski, Tom, Nieto-Santisteban, Maria, Nitta, Atsuko, Okamura, Sadanori, O, William, Owen, Russell, Padmanabhan, Nikhil, Pauls, George, Peoples, John, Pier, Jeffrey R., Pope, Adrian C., Pourbaix, Dimitri, Quinn, Thomas R., Raddick, M. Jordan, Richards, Gordon T., Richmond, Michael W., Rix, Hans-Walter, Rockosi, Constance M., Schlegel, David J., Schneider, Donald P., Schroeder, Joshua, Scranton, Ryan, Sekiguchi, Maki, Sheldon, Erin, Shimasaku, Kazu, Silvestri, Nicole M., Smith, J. Allyn, Smol?i?, Vernesa, Snedden, Stephanie A., Stebbins, Albert, Stoughton, Chris, Strauss, Michael A., SubbaRao, Mark, Szalay, Alexander S., Szapudi, István, Szkody, Paula, Szokoly, Gyula P., Tegmark, Max, Teodoro, Luis, Thakar, Aniruddha R., Tremonti, Christy, Tucker, Douglas L., Uomoto, Alan, Vanden Berk, Daniel E., Vandenberg, Jan, Vogeley, Michael S., Voges, Wolfgang, Vogt, Nicole P., Walkowicz, Lucianne M., Wang, Shu-i, Weinberg, David H., West, Andrew A., White, Simon D. M., Wilhite, Brian C., Xu, Yongzhong, Yanny, Brian, Yasuda, Naoki, Yip, Ching-Wa, Yocum, D. R., York, Donald G., Zehavi, Idit, Zibetti, Stefano, and Zucker, Daniel B.

Subjects
atlases, catalogs, surveys
Abstract

This paper describes the Third Data Release of the Sloan Digital Sky Survey (SDSS). This release, containing data taken up through 2003 June, includes imaging data in five bands over 5282 deg2, photometric and astrometric catalogs of the 141 million objects detected in these imaging data, and spectra of 528,640 objects selected over 4188 deg2. The pipelines analyzing both images and spectroscopy are unchanged from those used in our Second Data Release., Astronomy

Published
2005
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8. The Second Data Release of the Sloan Digital Sky Survey

Author

Abazajian, Kevork, Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Anderson, Kurt, S. J., Anderson, Scott F., Annis, James, Bahcall, Neta A., Baldry, Ivan K., Bastian, Steven, Berlind, Andreas, Bernardi, Mariangela, Blanton, Michael R., Bochanski, John J. Jr., Boroski, William N., Briggs, John W., Brinkmann, J., Brunner, Robert J., Budavári, Tamás, Carey, Larry N., Carliles, Samuel, Castander, Francisco J., Connolly, A. J., Csabai, István, Doi, Mamoru, Dong, Feng, Eisenstein, Daniel James, Evans, Michael L., Fan, Xiaohui, Finkbeiner, Douglas, Friedman, Scott D., Frieman, Joshua A., Fukugita, Masataka, Gal, Roy R., Gillespie, Bruce, Glazebrook, Karl, Gray, Jim, Grebel, Eva K., Gunn, James E., Gurbani, Vijay K., Hall, Patrick B., Hamabe, Masaru, Harris, Frederick H., Harris, Hugh C., Harvanek, Michael, Heckman, Timothy M., Hendry, John S., Hennessy, Gregory S., Hindsley, Robert B., Hogan, Craig J., Hogg, David W., Holmgren, Donald J., Ichikawa, Shin-ichi, Ichikawa, Takashi, Ivezic, Zeljko, Jester, Sebastian, Johnston, David E., Jorgensen, Anders M., Kent, Stephen M., Kleinman, S. J., Knapp, G. R., Kniazev, Alexei Yu., Kron, Richard G., Krzesinski, Jurek, Kunszt, Peter Z., Kuropatkin, Nickolai, Lamb, Donald Q., Lampeitl, Hubert, Lee, Brian C., Leger, R. French, Li, Nolan, Lin, Huan, Loh, Yeong-Shang, Long, Daniel C., Loveday, Jon, Lupton, Robert H., Malik, Tanu, Margon, Bruce, Matsubara, Takahiko, McGehee, Peregrine M., McKay, Timothy A., Meiksin, Avery, Munn, Jeffrey A., Nakajima, Reiko, Nash, Thomas, Neilsen, Eric H. Jr., Newberg, Heidi Jo, Newman, Peter R., Nichol, Robert C., Nicinski, Tom, Nieto-Santisteban, Maria, Nitta, Atsuko, Okamura, Sadanori, O, William, Ostriker, Jeremiah P., Owen, Russell, Padmanabhan, Nikhil, Peoples, John, Pier, Jeffrey R., Pope, Adrian C., Quinn, Thomas R., Richards, Gordon T., Richmond, Michael W., Rix, Hans-Walter, Rockosi, Constance M., Schlegel, David J., Schneider, Donald P., Scranton, Ryan, Sekiguchi, Maki, Seljak, Uros, Sergey, Gary, Sesar, Branimir, Sheldon, Erin, Shimasaku, Kazu, Siegmund, Walter A., Silvestri, Nicole M., Smith, J. Allyn, Smolčić, Vernesa, Snedden, Stephanie A., Stebbins, Albert, Stoughton, Chris, Strauss, Michael A., SubbaRao, Mark, Szalay, Alexander S., Szapudi, István, Szkody, Paula, Szokoly, Gyula P., Tegmark, Max, Teodoro, Luis, Thakar, Aniruddha R., Tremonti, Christy, Tucker, Douglas L., Uomoto, Alan, Vanden Berk, Daniel E., Vandenberg, Jan, Vogeley, Michael S., Voges, Wolfgang, Vogt, Nicole P., Walkowicz, Lucianne M., Wang, Shu-i, Weinberg, David H., West, Andrew A., White, Simon D. M., Wilhite, Brian C., Xu, Yongzhong, Yanny, Brian, Yasuda, Naoki, Yip, Ching-Wa, Yocum, D. R., York, Donald G., Zehavi, Idit, Zibetti, Stefano, and Zucker, Daniel B.

Subjects
atlases, catalogs, surveys
Abstract

The Sloan Digital Sky Survey (SDSS) has validated and made publicly available its Second Data Release. This data release consists of 3324 deg2 of five-band (ugriz) imaging data with photometry for over 88 million unique objects, 367,360 spectra of galaxies, quasars, stars, and calibrating blank sky patches selected over 2627 deg2 of this area, and tables of measured parameters from these data. The imaging data reach a depth of r ≈ 22.2 (95% completeness limit for point sources) and are photometrically and astrometrically calibrated to 2% rms and 100 mas rms per coordinate, respectively. The imaging data have all been processed through a new version of the SDSS imaging pipeline, in which the most important improvement since the last data release is fixing an error in the model fits to each object. The result is that model magnitudes are now a good proxy for point-spread function magnitudes for point sources, and Petrosian magnitudes for extended sources. The spectroscopy extends from 3800 to 9200 Å at a resolution of 2000. The spectroscopic software now repairs a systematic error in the radial velocities of certain types of stars and has substantially improved spectrophotometry. All data included in the SDSS Early Data Release and First Data Release are reprocessed with the improved pipelines and included in the Second Data Release. Further characteristics of the data are described, as are the data products themselves and the tools for accessing them., Astronomy

Published
2004
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9. Sloan Digital Sky Survey Imaging of Low Galactic Latitude Fields: Technical Summary and Data Release

Author

Finkbeiner, Douglas, Padmanabhan, Nikhil, Schlegel, David J., Carr, Michael A., Gunn, James E., Rockosi, Constance M., Sekiguchi, Maki, Lupton, Robert H., Knapp, G. R., Ivezic, Zeljko, Blanton, Michael R., Hogg, David W., Adelman-McCarthy, Jennifer K., Annis, James, Hayes, Jeffrey, Kinney, Ellynne, Long, Daniel C., Seljak, Uros, Strauss, Michael A., Yanny, Brian, Agüeros, Marcel A., Allam, Sahar S., Anderson, Scott F., Bahcall, Neta A., Baldry, Ivan K., Bernardi, Mariangela, Boroski, William N., Briggs, John W., Brinkmann, J., Brunner, Robert J., Budavári, Tamás, Castander, Francisco J., Covey, Kevin R., Csabai, István, Doi, Mamoru, Dong, Feng, Eisenstein, Daniel James, Fan, Xiaohui, Friedman, Scott D., Fukugita, Masataka, Gillespie, Bruce, Grebel, Eva K., Gurbani, Vijay K., de Haas, Ernst, Harris, Frederick H., Hendry, John S., Hennessy, Gregory S., Jester, Sebastian, Johnston, David E., Jorgensen, Anders M., Juric, Mario, Kent, Stephen M., Kniazev, Alexei Yu., Krzesinski, Jurek, Leger, R. French, Lin, Huan, Loveday, Jon, Mannery, Ed, Martínez-Delgado, David, McGehee, Peregrine M., Meiksin, Avery, Munn, Jeffrey A., Neilsen, Eric H. Jr., Newman, Peter R., Nitta, Atsuko, Pauls, George, Quinn, Thomas R., Rafikov, R. R., Richards, Gordon T., Richmond, Michael W., Schneider, Donald P., Schroeder, Joshua, Shimasaku, Kazu, Siegmund, Walter A., Smith, J. Allyn, Snedden, Stephanie A., Stebbins, Albert, Szalay, Alexander S., Szokoly, Gyula P., Tegmark, Max, Tucker, Douglas L., Uomoto, Alan, Vanden Berk, Daniel E., Weinberg, David H., West, Andrew A., Yasuda, Naoki, Yocum, D. R., York, Donald G., and Zehavi, Idit

Subjects
atlases, catalogs, surveys
Abstract

The Sloan Digital Sky Survey (SDSS) mosaic camera and telescope have obtained five-band optical-wavelength imaging near the Galactic plane outside of the nominal survey boundaries. These additional data were obtained during commissioning and subsequent testing of the SDSS observing system, and they provide unique wide-area imaging data in regions of high obscuration and star formation, including numerous young stellar objects, Herbig-Haro objects, and young star clusters. Because these data are outside the survey regions in the Galactic caps, they are not part of the standard SDSS data releases. This paper presents imaging data for 832 square degrees of sky (including repeats), in the star-forming regions of Orion, Taurus, and Cygnus. About 470 deg2 are now released to the public, with the remainder to follow at the time of SDSS Data Release 4. The public data in Orion include the star-forming region NGC 2068/NGC 2071/HH 24 and a large part of Barnard's loop., Astronomy

Published
2004
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11. Hot DB White Dwarfs from the Sloan Digital Sky Survey.

Author

Eisenstein, Daniel J., Liebert, James, Koester, Detlev, Kleinmann, S. J., Nitta, Atsuko, Smith, Paul S., Barentine, J. C., Brewington, Howard J., Brinkmann, J., Harvanek, Michael, Krzesiński, Jurek, Neilsen, Jr., Eric H., Long, Dan, Schneider, Donald P., and Snedden, Stephanie A.

Published
2006
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12. A Catalog of Spectroscopically Selected Close Binary Systems from the Sloan Digital Sky Survey Data Release Four.

Author

Silvestri, Nicole M., Hawley, Suzanne L., West, Andrew A., Szkody, Paula, Bochanski, John J., Eisenstein, Daniel J., McGehee, Peregrine, Schmidt, Gary D., Smith, J. Allyn, Wolfe, Michael A., Harris, Hugh C., Kleinman, Scot J., Liebert, James, Nitta, Atsuko, Barentine, J. C., Brewington, Howard J., Brinkmann, John, Harvanek, Michael, Krzesiński, Jurek, and Long, Dan

Published
2006
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13. Thirty-Five New Pulsating DA White Dwarf Stars.

Author

Mukadam, Anjum S., Mullally, F., Nather, R. E., Winget, D. E., von Hippel, Ted, Kleinman, S. J., Nitta, Atsuko, Krzesiński, Jurek, Kepler, S. O., Kanaan, A., Koester, D., Sullivan, D. J., Homeier, D., Thompson, S. E., Reaves, D., Cotter, C., Slaughter, D., and Brinkmann, J.

Published
2004
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14. A Catalog of Spectroscopically Identified White Dwarf Stars in the First Data Release of the Sloan Digital Sky Survey.

Author

Kleinman, S. J., Harris, Hugh C., Eisenstein, Daniel J., Liebert, James, Nitta, Atsuko, Krzesiński, Jurek, Munn, Jeffrey A., Dahn, Conard C., Hawley, Suzanne L., Pier, Jeffrey R., Schmidt, Gary, Silvestri, Nicole M., Smith, J. Allyn, Szkody, Paula, Strauss, Michael A., Knapp, G. R., Collinge, Matthew J., Mukadam, A. S., Koester, D., and Uomoto, Alan

Published
2004
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15. A Strategy for Finding Near-Earth Objects with the SDSS Telescope.

Author

Raymond, Sean N., Miknaitis, Gajus, Fraser, Oliver J., Garg, Arti, Hawley, Suzanne L., Jedicke, Robert, Quinn, Thomas, Rockosi, Constance M., Stubbs, Christopher W., Anderson, Scott F., Hogan, Craig J., Ivezić, Željko, Lupton, Robert H., West, Andrew A., Brewington, Howard, Brinkmann, J., Harvanek, Michael, Kleinman, Scot J., Krzesiński, Jurek, and Long, Dan

Published
2004
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16. SDSS White Dwarfs with Spectra Showing Atomic Oxygen and/or Carbon Lines.

Author

Liebert, James, Harris, H. C., Dahn, C. C., Schmidt, Gary D., Kleinman, S. J., Nitta, Atsuko, Krzesiński, Jurek, Eisenstein, Daniel, Smith, J. Allyn, Szkody, Paula, Hawley, Suzanne, Anderson, Scott F., Brinkmann, J., Collinge, Matthew J., Fan, Xiaohui, Hall, Patrick B., Knapp, Gillian R., Lamb, Don Q., Margon, B., and Schneider, Donald P.

Published
2003
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17. An Initial Survey of White Dwarfs in the Sloan Digital Sky Survey.

Author

Harris, Hugh C., Liebert, James, Kleinman, S. J., Nitta, Atsuko, Anderson, Scott F., Knapp, Gillian R., Krzesiński, Jurek, Schmidt, Gary, Strauss, Michael A., Vanden Berk, Dan, Eisenstein, Daniel, Hawley, Suzanne, Margon, Bruce, Munn, Jeffrey A., Silvestri, Nicole M., Smith, J. Allyn, Szkody, Paula, Collinge, Matthew J., Dahn, Conard C., and Fan, Xiaohui

Published
2003
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18. SDSS J092455.87+021924.9: An Interesting Gravitationally Lensed Quasar from the Sloan Digital Sky Survey.

Author

Inada, Naohisa, Becker, Robert H., Burles, Scott, Castander, Francisco J., Eisenstein, Daniel, Hall, Patrick B., Johnston, David E., Pindor, Bartosz, Richards, Gordon T., Schechter, Paul L., Sekiguchi, Maki, White, Richard L., Brinkmann, J., Frieman, Joshua A., Kleinman, S. J., Krzesiński, Jurek, Long, Daniel C., Neilsen, Jr., Eric H., Newman, Peter R., and Nitta, Atsuko

Published
2003
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