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The sixth data release of the Sloan Digital Sky Survey

Adelman-McCarthy, Jennifer K. and Agüeros, Marcel A. and Allam, Sahar S. and Allende Prieto, Carlos and Anderson, Kurt S. J. and Anderson, Scott F. and Annis, James and Bahcall, Neta A. and Bailer-Jones, C. A. L. and Baldry, Ivan K. and Barentine, J. C. and Bassett, Bruce A. and Becker, Andrew C. and Beers, Timothy C. and Bell, Eric F. and Berlind, Andreas A. and Bernardi, Mariangela and Blanton, Michael R. and Bochanski, John J. and Boroski, William N. and Brinchmann, Jarle and Brinkmann, J. and Brunner, Robert J. and Budavári, Tamás and Carliles, Samuel and Carr, Michael A. and Castander, Francisco J. and Cinabro, David and Cool, R. J. and Covey, Kevin R. and Csabai, István and Cunha, Carlos E. and Davenport, James R. A. and Dilday, Ben and Doi, Mamoru and Eisenstein, Daniel J. and Evans, Michael L. and Fan, Xiaohui and Finkbeiner, Douglas P. and Friedman, Scott D. and Frieman, Joshua A. and Fukugita, Masataka and Gänsicke, Boris T. and Gates, Evalyn and Gillespie, Bruce and Glazebrook, Karl and Gray, Jim and Grebel, Eva K. and Gunn, James E. and Gurbani, Vijay K. and Hall, Patrick B. and Harding, Paul and Harvanek, Michael and Hawley, Suzanne L. and Hayes, Jeffrey and Heckman, Timothy M. and Hendry, John S. and Hindsley, Robert B. and Hirata, Christopher M. and Hogan, Craig J. and Hogg, David W. and Hyde, Joseph B. and Ichikawa, Shin-ichi and Ivezić, Željko and Jester, Sebastian and Johnson, Jennifer A. and Jorgensen, Anders M. and Jurić, Mario and Kent, Stephen M. and Kessler, R. and Kleinman, S. J. and Knapp, G. R. and Kron, Richard G. and Krzesinski, Jurek and Kuropatkin, Nikolay and Lamb, Donald Q. and Lampeitl, Hubert and Lebedeva, Svetlana and Lee, Young Sun and Leger, R. French and Lépine, Sébastien and Lima, Marcos and Lin, Huan and Long, Daniel C. and Loomis, Craig P. and Loveday, Jon and Lupton, Robert H. and Malanushenko, Olena and Malanushenko, Viktor and Mandelbaum, Rachel and Margon, Bruce and Marriner, John P. and Martínez-Delgado, David and Matsubara, Takahiko and McGehee, Peregrine M. and McKay, Timothy A. and Meiksin, Avery and Morrison, Heather L. and Munn, Jeffrey A. and Nakajima, Reiko and Neilsen, Eric H., Jr. and Newberg, Heidi Jo and Nichol, Robert C. and Nicinski, Tom and Nieto-Santisteban, Maria and Nitta, Atsuko and Okamura, Sadanori and Owen, Russell and Oyaizu, Hiroaki and Padmanabhan, Nikhil and Pan, Kaike and Park, Changbom and Peoples, John, Jr. and Pier, Jeffrey R. and Pope, Adrian C. and Purger, Norbert and Raddick, M. Jordan and Re Fiorentin, Paola and Richards, Gordon T. and Richmond, Michael W. and Riess, Adam G. and Rix, Hans-Walter and Rockosi, Constance M. and Sako, Masao and Schlegel, David J. and Schneider, Donald P. and Schreiber, Matthias R. and Schwope, Axel D. and Seljak, Uroš and Sesar, Branimir and Sheldon, Erin and Shimasaku, Kazu and Sivarani, Thirupathi and Smith, J. Allyn and Snedden, Stephanie A. and Steinmetz, Matthias and Strauss, Michael A. and SubbaRao, Mark and Suto, Yasushi and Szalay, Alexander S. and Szapudi, Alexander and Szkody, Paula and Tegmark, Max and Thakar, Aniruddha R. and Tremonti, Christy A. and Tucker, Douglas L. and Uomoto, Alan and Vanden Berk, Daniel E. and Vandenberg, Jan and Vidrih, S. and Vogeley, Michael S. and Voges, Wolfgang and Vogt, Nicole P. and Wadadekar, Yogesh and Weinberg, David H. and West, Andrew A. and White, Simon D. M. and Wilhite, Brian C. and Yanny, Brian and Yocum, D. R. and York, Donald G. and Zehavi, Idit and Zucker, Daniel B. (2008) The sixth data release of the Sloan Digital Sky Survey. Astrophysical Journal Supplement Series, 175 (2). pp. 297-313. ISSN 0067-0049.

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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 deg^2, 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 deg^2. 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.

Item Type:Article
Related URLs:
URLURL TypeDescription
Agüeros, Marcel A.0000-0001-7077-3664
Allende Prieto, Carlos0000-0002-0084-572X
Beers, Timothy C.0000-0003-4573-6233
Castander, Francisco J.0000-0001-7316-4573
Covey, Kevin R.0000-0001-6914-7797
Davenport, James R. A.0000-0002-0637-835X
Fan, Xiaohui0000-0003-3310-0131
Gänsicke, Boris T.0000-0002-2761-3005
Gates, Evalyn0000-0002-3739-0423
Grebel, Eva K.0000-0002-1891-3794
Hawley, Suzanne L.0000-0002-6629-4182
Hirata, Christopher M.0000-0002-2951-4932
Hogg, David W.0000-0003-2866-9403
Ivezić, Željko0000-0001-5250-2633
Johnson, Jennifer A.0000-0001-9808-7172
Jurić, Mario0000-0003-1996-9252
Kessler, R.0000-0003-3221-0419
Knapp, G. R.0000-0002-9259-1164
Lépine, Sébastien0000-0002-2437-2947
Lupton, Robert H.0000-0003-1666-0962
Mandelbaum, Rachel0000-0003-2271-1527
Margon, Bruce0000-0002-7837-3363
Martínez-Delgado, David0000-0003-3835-2231
McGehee, Peregrine M.0000-0003-0948-6716
Munn, Jeffrey A.0000-0002-4603-4834
Rix, Hans-Walter0000-0003-4996-9069
Schlegel, David J.0000-0002-5042-5088
Sesar, Branimir0000-0002-0834-3978
Strauss, Michael A.0000-0002-0106-7755
Yanny, Brian0000-0002-9541-2678
Additional Information:© 2008 The American Astronomical Society. Received 2007 July 23; accepted 2007 October 18. Funding for the SDSS and SDSS-II has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, the US Department of Energy, the National Aeronautics and Space Administration, the Japanese Monbukagakusho, the Max Planck Society, and the Higher Education Funding Council for England. The SDSSWeb site is The SDSS is managed by the Astrophysical Research Consortium for the Participating Institutions. The Participating Institutions are the American Museum of Natural History, Astrophysical Institute Potsdam, University of Basel, University of Cambridge, Case Western Reserve University, University of Chicago, Drexel University, Fermilab, the Institute for Advanced Study, the Japan Participation Group, Johns Hopkins University, the Joint Institute for Nuclear Astrophysics, the Kavli Institute for Particle Astrophysics and Cosmology, the Korean Scientist Group, the Chinese Academy of Sciences (LAMOST), Los Alamos National Laboratory, the Max Planck Institute for Astronomy (MPIA), the Max Planck Institute for Astrophysics (MPA), New Mexico State University, Ohio State University, University of Pittsburgh, University of Portsmouth, Princeton University, the United States Naval Observatory, and the University of Washington.
Funding AgencyGrant Number
Alfred P. Sloan FoundationUNSPECIFIED
Participating InstitutionsUNSPECIFIED
Department of Energy (DOE)UNSPECIFIED
Japanese MonbukagakushoUNSPECIFIED
Max Planck SocietyUNSPECIFIED
Higher Education Funding Council for EnglandUNSPECIFIED
Subject Keywords:atlases; catalogs; surveys
Issue or Number:2
Record Number:CaltechAUTHORS:20090429-134334936
Persistent URL:
Official Citation:The Sixth Data Release of the Sloan Digital Sky Survey Jennifer K. Adelman-McCarthy, Marcel A. Agüeros, Sahar S. Allam, Carlos Allende Prieto, Kurt S.J. Anderson, Scott F. Anderson, James Annis, Neta A. Bahcall, C. A. L. Bailer-Jones, Ivan K. Baldry, J. C. Barentine, Bruce A. Bassett, Andrew C. Becker, Timothy C. Beers, Eric F. Bell, Andreas A. Berlind, Mariangela Bernardi, Michael R. Blanton, John J. Bochanski, William N. Boroski, Jarle Brinchmann, J. Brinkmann, Robert J. Brunner, Tamás Budavári, Samuel Carliles, Michael A. Carr, Francisco J. Castander, David Cinabro, R. J. Cool, Kevin R. Covey, István Csabai, Carlos E. Cunha, James R. A. Davenport, Ben Dilday, Mamoru Doi, Daniel J. Eisenstein, Michael L. Evans, Xiaohui Fan, Douglas P. Finkbeiner, Scott D. Friedman, Joshua A. Frieman, Masataka Fukugita, Boris T. Gänsicke, Evalyn Gates, Bruce Gillespie, Karl Glazebrook, Jim Gray, Eva K. Grebel, James E. Gunn, Vijay K. Gurbani, Patrick B. Hall, Paul Harding, Michael Harvanek, Suzanne L. Hawley, Jeffrey Hayes, Timothy M. Heckman, John S. Hendry, Robert B. Hindsley, Christopher M. Hirata, Craig J. Hogan, David W. Hogg, Joseph B. Hyde, Shin-ichi Ichikawa, Željko Ivezić, Sebastian Jester, Jennifer A. Johnson, Anders M. Jorgensen, Mario Jurić, Stephen M. Kent, R. Kessler, S. J. Kleinman, G. R. Knapp, Richard G. Kron, Jurek Krzesinski, Nikolay Kuropatkin, Donald Q. Lamb, Hubert Lampeitl, Svetlana Lebedeva, Young Sun Lee, R. French Leger, Sébastien Lépine, Marcos Lima, Huan Lin, Daniel C. Long, Craig P. Loomis, Jon Loveday, Robert H. Lupton, Olena Malanushenko, Viktor Malanushenko, Rachel Mandelbaum, Bruce Margon, John P. Marriner, David Martínez-Delgado, Takahiko Matsubara, Peregrine M. McGehee, Timothy A. McKay, Avery Meiksin, Heather L. Morrison, Jeffrey A. Munn, Reiko Nakajima, Eric H. Neilsen, Jr., Heidi Jo Newberg, Robert C. Nichol, Tom Nicinski, Maria Nieto-Santisteban, Atsuko Nitta, Sadanori Okamura, Russell Owen, Hiroaki Oyaizu, Nikhil Padmanabhan, Kaike Pan, Changbom Park, John Peoples, Jr., Jeffrey R. Pier, Adrian C. Pope, Norbert Purger, M. Jordan Raddick, Paola Re Fiorentin, Gordon T. Richards, Michael W. Richmond, Adam G. Riess, Hans-Walter Rix, Constance M. Rockosi, Masao Sako, David J. Schlegel, Donald P. Schneider, Matthias R. Schreiber, Axel D. Schwope, Uroš Seljak, Branimir Sesar, Erin Sheldon, Kazu Shimasaku, Thirupathi Sivarani, J. Allyn Smith, Stephanie A. Snedden, Matthias Steinmetz, Michael A. Strauss, Mark SubbaRao, Yasushi Suto, Alexander S. Szalay, István Szapudi, Paula Szkody, Max Tegmark, Aniruddha R. Thakar, Christy A. Tremonti, Douglas L. Tucker, Alan Uomoto, Daniel E. Vanden Berk, Jan Vandenberg, S. Vidrih, Michael S. Vogeley, Wolfgang Voges, Nicole P. Vogt, Yogesh Wadadekar, David H. Weinberg, Andrew A. West, Simon D. M. White, Brian C. Wilhite, Brian Yanny, D. R. Yocum, Donald G. York, Idit Zehavi, and Daniel B. Zucker 2008 ApJS 175 297-313 doi: 10.1086/524984
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ID Code:14111
Deposited By: Tony Diaz
Deposited On:10 Aug 2009 23:09
Last Modified:22 Dec 2020 01:07

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