The second data release of the sloan digital sky survey

Kevork Abazajian, Jennifer K. Adelman-McCarthy, Marcel A. Agüeros, Sahar S. Allam, S. J Anderson Kurt, Scott F. Anderson, James Annis, Neta A. Bahcall, Ivan K. Baldry, Steven Bastian, Andreas Berlind, Mariangela Bernardi, Michael R. Blanton, John J. Bochanski, William N. Boroski, John W. Briggs, J. Brinkmann, Robert J. Brunner, Tamás Budavári, Larry N. CareySamuel Carliles, Francisco J. Castander, A. J. Connolly, István Csabai, Mamoru Doi, Feng Dong, Daniel J. Eisenstein, Michael L. Evans, Xiaohui Fan, Douglas P. Finkbeiner, Scott D. Friedman, Joshua A. Frieman, Masataka Fukugita, Roy R. Gal, Bruce Gillespie, Karl Glazebrook, Jim Gray, Eva K. Grebel, James E. Gunn, Vijay K. Gurbani, Patrick B. Hall, Masaru Hamabe, Frederick H. Harris, Hugh C. Harris, Michael Harvanek, Timothy M. Heckman, John S. Hendry, Gregory S. Hennessy, Robert B. Hindsley, Craig J. Hogan, David W. Hogg, Donald J. Holmgren, Shin ichi Ichikawa, Takashi Ichikawa, Željko Ivezić, Sebastian Jester, David E. Johnston, Anders M. Jorgensen, Stephen M. Kent, S. J. Kleinman, G. R. Knapp, Alexei Y. Kniazev, Richard G. Kron, Jurek Krzesinski, Peter Z. Kunszt, Nickolai Kuropatkin, Donald Q. Lamb, Hubert Lampeitl, Brian C. Lee, R. French Leger, Nolan Li, Huan Lin, Yeong Shang Loh, Daniel C. Long, Jon Loveday, Robert H. Lupton, Tanu Malik, Bruce Margon, Takahiko Matsubara, Peregrine M. McGehee, Timothy A. McKay, Avery Meiksin, Jeffrey A. Munn, Reiko Nakajima, Thomas Nash, Eric H. Neilsen, Heidi J. Newberg, Peter R. Newman, Robert C. Nichol, Tom Nicinski, Maria Nieto-Santisteban, Atsuko Nitta, Sadanori Okamura, William O'Mullane, Jeremiah P. Ostriker, Russell Owen, Nikhil Padmanabhan, John Peoples, Jeffrey R. Pier, Adrian C. Pope, Thomas R. Quinn, Gordon T. Richards, Michael W. Richmond, Walter Hans-Rix, Constance M. Rockosi, David J. Schlegel, Donald P. Schneider, Ryan Scranton, Maki Sekiguchi, Uros Seljak, Gary Sergey, Branimir Sesar, Erin Sheldon, Kazu Shimasaku, Walter A. Siegmund, Nicole M. Silvestri, J. Allyn Smith, Vernesa Smolčić, Stephanie A. Snedden, Albert Stebbins, Chris Stoughton, Michael A. Strauss, MarkRao Subba, Alexander S. Szalay, István Szapudi, Paula Szkody, Gyula P. Szokoly, Max Tegmark, Luis Teodoro, Aniruddha R. Thakar, Christy Tremonti, Douglas L. Tucker, Alan Uomoto, Daniel E. vanden Berk, Jan Vandenberg, Michael S. Vogeley, Wolfgang Voges, Nicole P. Vogt, Lucianne M. Walkowicz, Shu i. Wang, David H. Weinberg, Andrew A. West, Simon D M White, Brian C. Wilhite, Yongzhong Xu, Brian Yanny, Naoki Yasuda, Ching Wa Yip, D. R. Yocum, Donald G. York, Idit Zehavi, Stefano Zibetti, Daniel B. Zucker

    Research output: Contribution to journalArticle

    Abstract

    The Sloan Digital Sky Survey (SDSS) has validated and made publicly available its Second Data Release. This data release consists of 3324 deg 2 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.

    Original languageEnglish (US)
    Pages (from-to)502-512
    Number of pages11
    JournalAstronomical Journal
    Volume128
    Issue number1 1783
    DOIs
    StatePublished - Jul 2004

    Fingerprint

    point sources
    stars
    data products
    blanks
    completeness
    spectrophotometry
    calibrating
    point spread functions
    systematic errors
    radial velocity
    fixing
    quasars
    photometry
    sky
    galaxies
    computer programs
    spectroscopy
    point source
    repair
    software

    Keywords

    • Atlases
    • Catalogs
    • Surveys

    ASJC Scopus subject areas

    • Space and Planetary Science
    • Astronomy and Astrophysics

    Cite this

    Abazajian, K., Adelman-McCarthy, J. K., Agüeros, M. A., Allam, S. S., Kurt, S. J. A., Anderson, S. F., ... Zucker, D. B. (2004). The second data release of the sloan digital sky survey. Astronomical Journal, 128(1 1783), 502-512. https://doi.org/10.1086/421365

    The second data release of the sloan digital sky survey. / Abazajian, Kevork; Adelman-McCarthy, Jennifer K.; Agüeros, Marcel A.; Allam, Sahar S.; Kurt, S. J Anderson; Anderson, Scott F.; Annis, James; Bahcall, Neta A.; Baldry, Ivan K.; Bastian, Steven; Berlind, Andreas; Bernardi, Mariangela; Blanton, Michael R.; Bochanski, John J.; 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 J.; Evans, Michael L.; Fan, Xiaohui; Finkbeiner, Douglas P.; 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; Ivezić, Željko; Jester, Sebastian; Johnston, David E.; Jorgensen, Anders M.; Kent, Stephen M.; Kleinman, S. J.; Knapp, G. R.; Kniazev, Alexei Y.; 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.; Newberg, Heidi J.; Newman, Peter R.; Nichol, Robert C.; Nicinski, Tom; Nieto-Santisteban, Maria; Nitta, Atsuko; Okamura, Sadanori; O'Mullane, 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.; Hans-Rix, 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.; Subba, MarkRao; 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; Zucker, Daniel B.

    In: Astronomical Journal, Vol. 128, No. 1 1783, 07.2004, p. 502-512.

    Research output: Contribution to journalArticle

    Abazajian, K, Adelman-McCarthy, JK, Agüeros, MA, Allam, SS, Kurt, SJA, Anderson, SF, Annis, J, Bahcall, NA, Baldry, IK, Bastian, S, Berlind, A, Bernardi, M, Blanton, MR, Bochanski, JJ, Boroski, WN, Briggs, JW, Brinkmann, J, Brunner, RJ, Budavári, T, Carey, LN, Carliles, S, Castander, FJ, Connolly, AJ, Csabai, I, Doi, M, Dong, F, Eisenstein, DJ, Evans, ML, Fan, X, Finkbeiner, DP, Friedman, SD, Frieman, JA, Fukugita, M, Gal, RR, Gillespie, B, Glazebrook, K, Gray, J, Grebel, EK, Gunn, JE, Gurbani, VK, Hall, PB, Hamabe, M, Harris, FH, Harris, HC, Harvanek, M, Heckman, TM, Hendry, JS, Hennessy, GS, Hindsley, RB, Hogan, CJ, Hogg, DW, Holmgren, DJ, Ichikawa, SI, Ichikawa, T, Ivezić, Ž, Jester, S, Johnston, DE, Jorgensen, AM, Kent, SM, Kleinman, SJ, Knapp, GR, Kniazev, AY, Kron, RG, Krzesinski, J, Kunszt, PZ, Kuropatkin, N, Lamb, DQ, Lampeitl, H, Lee, BC, Leger, RF, Li, N, Lin, H, Loh, YS, Long, DC, Loveday, J, Lupton, RH, Malik, T, Margon, B, Matsubara, T, McGehee, PM, McKay, TA, Meiksin, A, Munn, JA, Nakajima, R, Nash, T, Neilsen, EH, Newberg, HJ, Newman, PR, Nichol, RC, Nicinski, T, Nieto-Santisteban, M, Nitta, A, Okamura, S, O'Mullane, W, Ostriker, JP, Owen, R, Padmanabhan, N, Peoples, J, Pier, JR, Pope, AC, Quinn, TR, Richards, GT, Richmond, MW, Hans-Rix, W, Rockosi, CM, Schlegel, DJ, Schneider, DP, Scranton, R, Sekiguchi, M, Seljak, U, Sergey, G, Sesar, B, Sheldon, E, Shimasaku, K, Siegmund, WA, Silvestri, NM, Smith, JA, Smolčić, V, Snedden, SA, Stebbins, A, Stoughton, C, Strauss, MA, Subba, M, Szalay, AS, Szapudi, I, Szkody, P, Szokoly, GP, Tegmark, M, Teodoro, L, Thakar, AR, Tremonti, C, Tucker, DL, Uomoto, A, vanden Berk, DE, Vandenberg, J, Vogeley, MS, Voges, W, Vogt, NP, Walkowicz, LM, Wang, SI, Weinberg, DH, West, AA, White, SDM, Wilhite, BC, Xu, Y, Yanny, B, Yasuda, N, Yip, CW, Yocum, DR, York, DG, Zehavi, I, Zibetti, S & Zucker, DB 2004, 'The second data release of the sloan digital sky survey', Astronomical Journal, vol. 128, no. 1 1783, pp. 502-512. https://doi.org/10.1086/421365
    Abazajian K, Adelman-McCarthy JK, Agüeros MA, Allam SS, Kurt SJA, Anderson SF et al. The second data release of the sloan digital sky survey. Astronomical Journal. 2004 Jul;128(1 1783):502-512. https://doi.org/10.1086/421365
    Abazajian, Kevork ; Adelman-McCarthy, Jennifer K. ; Agüeros, Marcel A. ; Allam, Sahar S. ; Kurt, S. J Anderson ; Anderson, Scott F. ; Annis, James ; Bahcall, Neta A. ; Baldry, Ivan K. ; Bastian, Steven ; Berlind, Andreas ; Bernardi, Mariangela ; Blanton, Michael R. ; Bochanski, John J. ; 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 J. ; Evans, Michael L. ; Fan, Xiaohui ; Finkbeiner, Douglas P. ; 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 ; Ivezić, Željko ; Jester, Sebastian ; Johnston, David E. ; Jorgensen, Anders M. ; Kent, Stephen M. ; Kleinman, S. J. ; Knapp, G. R. ; Kniazev, Alexei Y. ; 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. ; Newberg, Heidi J. ; Newman, Peter R. ; Nichol, Robert C. ; Nicinski, Tom ; Nieto-Santisteban, Maria ; Nitta, Atsuko ; Okamura, Sadanori ; O'Mullane, 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. ; Hans-Rix, 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. ; Subba, MarkRao ; 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 ; Zucker, Daniel B. / The second data release of the sloan digital sky survey. In: Astronomical Journal. 2004 ; Vol. 128, No. 1 1783. pp. 502-512.
    @article{e493ec3fb5e444389b993578a473b0e6,
    title = "The second data release of the sloan digital sky survey",
    abstract = "The Sloan Digital Sky Survey (SDSS) has validated and made publicly available its Second Data Release. This data release consists of 3324 deg 2 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 {\AA} 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.",
    keywords = "Atlases, Catalogs, Surveys",
    author = "Kevork Abazajian and Adelman-McCarthy, {Jennifer K.} and Ag{\"u}eros, {Marcel A.} and Allam, {Sahar S.} and Kurt, {S. J Anderson} and Anderson, {Scott F.} and James Annis and Bahcall, {Neta A.} and Baldry, {Ivan K.} and Steven Bastian and Andreas Berlind and Mariangela Bernardi and Blanton, {Michael R.} and Bochanski, {John J.} and Boroski, {William N.} and Briggs, {John W.} and J. Brinkmann and Brunner, {Robert J.} and Tam{\'a}s Budav{\'a}ri and Carey, {Larry N.} and Samuel Carliles and Castander, {Francisco J.} and Connolly, {A. J.} and Istv{\'a}n Csabai and Mamoru Doi and Feng Dong and Eisenstein, {Daniel J.} and Evans, {Michael L.} and Xiaohui Fan and Finkbeiner, {Douglas P.} and Friedman, {Scott D.} and Frieman, {Joshua A.} and Masataka Fukugita and Gal, {Roy R.} and Bruce Gillespie and Karl Glazebrook and Jim Gray and Grebel, {Eva K.} and Gunn, {James E.} and Gurbani, {Vijay K.} and Hall, {Patrick B.} and Masaru Hamabe and Harris, {Frederick H.} and Harris, {Hugh C.} and Michael Harvanek and Heckman, {Timothy M.} and Hendry, {John S.} and Hennessy, {Gregory S.} and Hindsley, {Robert B.} and Hogan, {Craig J.} and Hogg, {David W.} and Holmgren, {Donald J.} and Ichikawa, {Shin ichi} and Takashi Ichikawa and Željko Ivezić and Sebastian Jester and Johnston, {David E.} and Jorgensen, {Anders M.} and Kent, {Stephen M.} and Kleinman, {S. J.} and Knapp, {G. R.} and Kniazev, {Alexei Y.} and Kron, {Richard G.} and Jurek Krzesinski and Kunszt, {Peter Z.} and Nickolai Kuropatkin and Lamb, {Donald Q.} and Hubert Lampeitl and Lee, {Brian C.} and Leger, {R. French} and Nolan Li and Huan Lin and Loh, {Yeong Shang} and Long, {Daniel C.} and Jon Loveday and Lupton, {Robert H.} and Tanu Malik and Bruce Margon and Takahiko Matsubara and McGehee, {Peregrine M.} and McKay, {Timothy A.} and Avery Meiksin and Munn, {Jeffrey A.} and Reiko Nakajima and Thomas Nash and Neilsen, {Eric H.} and Newberg, {Heidi J.} and Newman, {Peter R.} and Nichol, {Robert C.} and Tom Nicinski and Maria Nieto-Santisteban and Atsuko Nitta and Sadanori Okamura and William O'Mullane and Ostriker, {Jeremiah P.} and Russell Owen and Nikhil Padmanabhan and John Peoples and Pier, {Jeffrey R.} and Pope, {Adrian C.} and Quinn, {Thomas R.} and Richards, {Gordon T.} and Richmond, {Michael W.} and Walter Hans-Rix and Rockosi, {Constance M.} and Schlegel, {David J.} and Schneider, {Donald P.} and Ryan Scranton and Maki Sekiguchi and Uros Seljak and Gary Sergey and Branimir Sesar and Erin Sheldon and Kazu Shimasaku and Siegmund, {Walter A.} and Silvestri, {Nicole M.} and Smith, {J. Allyn} and Vernesa Smolčić and Snedden, {Stephanie A.} and Albert Stebbins and Chris Stoughton and Strauss, {Michael A.} and MarkRao Subba and Szalay, {Alexander S.} and Istv{\'a}n Szapudi and Paula Szkody and Szokoly, {Gyula P.} and Max Tegmark and Luis Teodoro and Thakar, {Aniruddha R.} and Christy Tremonti and Tucker, {Douglas L.} and Alan Uomoto and {vanden Berk}, {Daniel E.} and Jan Vandenberg and Vogeley, {Michael S.} and Wolfgang Voges and Vogt, {Nicole P.} and Walkowicz, {Lucianne M.} and Wang, {Shu i.} and Weinberg, {David H.} and West, {Andrew A.} and White, {Simon D M} and Wilhite, {Brian C.} and Yongzhong Xu and Brian Yanny and Naoki Yasuda and Yip, {Ching Wa} and Yocum, {D. R.} and York, {Donald G.} and Idit Zehavi and Stefano Zibetti and Zucker, {Daniel B.}",
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    doi = "10.1086/421365",
    language = "English (US)",
    volume = "128",
    pages = "502--512",
    journal = "Astronomical Journal",
    issn = "0004-6256",
    publisher = "IOP Publishing Ltd.",
    number = "1 1783",

    }

    TY - JOUR

    T1 - The second data release of the sloan digital sky survey

    AU - Abazajian, Kevork

    AU - Adelman-McCarthy, Jennifer K.

    AU - Agüeros, Marcel A.

    AU - Allam, Sahar S.

    AU - Kurt, S. J Anderson

    AU - Anderson, Scott F.

    AU - Annis, James

    AU - Bahcall, Neta A.

    AU - Baldry, Ivan K.

    AU - Bastian, Steven

    AU - Berlind, Andreas

    AU - Bernardi, Mariangela

    AU - Blanton, Michael R.

    AU - Bochanski, John J.

    AU - Boroski, William N.

    AU - Briggs, John W.

    AU - Brinkmann, J.

    AU - Brunner, Robert J.

    AU - Budavári, Tamás

    AU - Carey, Larry N.

    AU - Carliles, Samuel

    AU - Castander, Francisco J.

    AU - Connolly, A. J.

    AU - Csabai, István

    AU - Doi, Mamoru

    AU - Dong, Feng

    AU - Eisenstein, Daniel J.

    AU - Evans, Michael L.

    AU - Fan, Xiaohui

    AU - Finkbeiner, Douglas P.

    AU - Friedman, Scott D.

    AU - Frieman, Joshua A.

    AU - Fukugita, Masataka

    AU - Gal, Roy R.

    AU - Gillespie, Bruce

    AU - Glazebrook, Karl

    AU - Gray, Jim

    AU - Grebel, Eva K.

    AU - Gunn, James E.

    AU - Gurbani, Vijay K.

    AU - Hall, Patrick B.

    AU - Hamabe, Masaru

    AU - Harris, Frederick H.

    AU - Harris, Hugh C.

    AU - Harvanek, Michael

    AU - Heckman, Timothy M.

    AU - Hendry, John S.

    AU - Hennessy, Gregory S.

    AU - Hindsley, Robert B.

    AU - Hogan, Craig J.

    AU - Hogg, David W.

    AU - Holmgren, Donald J.

    AU - Ichikawa, Shin ichi

    AU - Ichikawa, Takashi

    AU - Ivezić, Željko

    AU - Jester, Sebastian

    AU - Johnston, David E.

    AU - Jorgensen, Anders M.

    AU - Kent, Stephen M.

    AU - Kleinman, S. J.

    AU - Knapp, G. R.

    AU - Kniazev, Alexei Y.

    AU - Kron, Richard G.

    AU - Krzesinski, Jurek

    AU - Kunszt, Peter Z.

    AU - Kuropatkin, Nickolai

    AU - Lamb, Donald Q.

    AU - Lampeitl, Hubert

    AU - Lee, Brian C.

    AU - Leger, R. French

    AU - Li, Nolan

    AU - Lin, Huan

    AU - Loh, Yeong Shang

    AU - Long, Daniel C.

    AU - Loveday, Jon

    AU - Lupton, Robert H.

    AU - Malik, Tanu

    AU - Margon, Bruce

    AU - Matsubara, Takahiko

    AU - McGehee, Peregrine M.

    AU - McKay, Timothy A.

    AU - Meiksin, Avery

    AU - Munn, Jeffrey A.

    AU - Nakajima, Reiko

    AU - Nash, Thomas

    AU - Neilsen, Eric H.

    AU - Newberg, Heidi J.

    AU - Newman, Peter R.

    AU - Nichol, Robert C.

    AU - Nicinski, Tom

    AU - Nieto-Santisteban, Maria

    AU - Nitta, Atsuko

    AU - Okamura, Sadanori

    AU - O'Mullane, William

    AU - Ostriker, Jeremiah P.

    AU - Owen, Russell

    AU - Padmanabhan, Nikhil

    AU - Peoples, John

    AU - Pier, Jeffrey R.

    AU - Pope, Adrian C.

    AU - Quinn, Thomas R.

    AU - Richards, Gordon T.

    AU - Richmond, Michael W.

    AU - Hans-Rix, Walter

    AU - Rockosi, Constance M.

    AU - Schlegel, David J.

    AU - Schneider, Donald P.

    AU - Scranton, Ryan

    AU - Sekiguchi, Maki

    AU - Seljak, Uros

    AU - Sergey, Gary

    AU - Sesar, Branimir

    AU - Sheldon, Erin

    AU - Shimasaku, Kazu

    AU - Siegmund, Walter A.

    AU - Silvestri, Nicole M.

    AU - Smith, J. Allyn

    AU - Smolčić, Vernesa

    AU - Snedden, Stephanie A.

    AU - Stebbins, Albert

    AU - Stoughton, Chris

    AU - Strauss, Michael A.

    AU - Subba, MarkRao

    AU - Szalay, Alexander S.

    AU - Szapudi, István

    AU - Szkody, Paula

    AU - Szokoly, Gyula P.

    AU - Tegmark, Max

    AU - Teodoro, Luis

    AU - Thakar, Aniruddha R.

    AU - Tremonti, Christy

    AU - Tucker, Douglas L.

    AU - Uomoto, Alan

    AU - vanden Berk, Daniel E.

    AU - Vandenberg, Jan

    AU - Vogeley, Michael S.

    AU - Voges, Wolfgang

    AU - Vogt, Nicole P.

    AU - Walkowicz, Lucianne M.

    AU - Wang, Shu i.

    AU - Weinberg, David H.

    AU - West, Andrew A.

    AU - White, Simon D M

    AU - Wilhite, Brian C.

    AU - Xu, Yongzhong

    AU - Yanny, Brian

    AU - Yasuda, Naoki

    AU - Yip, Ching Wa

    AU - Yocum, D. R.

    AU - York, Donald G.

    AU - Zehavi, Idit

    AU - Zibetti, Stefano

    AU - Zucker, Daniel B.

    PY - 2004/7

    Y1 - 2004/7

    N2 - The Sloan Digital Sky Survey (SDSS) has validated and made publicly available its Second Data Release. This data release consists of 3324 deg 2 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.

    AB - The Sloan Digital Sky Survey (SDSS) has validated and made publicly available its Second Data Release. This data release consists of 3324 deg 2 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.

    KW - Atlases

    KW - Catalogs

    KW - Surveys

    UR - http://www.scopus.com/inward/record.url?scp=4544347521&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=4544347521&partnerID=8YFLogxK

    U2 - 10.1086/421365

    DO - 10.1086/421365

    M3 - Article

    AN - SCOPUS:4544347521

    VL - 128

    SP - 502

    EP - 512

    JO - Astronomical Journal

    JF - Astronomical Journal

    SN - 0004-6256

    IS - 1 1783

    ER -