The seventh data release of the sloan digital sky survey

dc.contributor.authorAbazajian, Kevork N
dc.contributor.authorAdelman‐McCarthy, Jennifer K
dc.contributor.authorAgYeros, Marcel A
dc.contributor.authorAllam, Sahar S
dc.contributor.authorPrieto, Carlos Allende
dc.contributor.authorAn, Deokkeun
dc.contributor.authorAnderson, Kurt S J
dc.contributor.authorAnderson, Scott F
dc.contributor.authorAnnis, James
dc.contributor.authorBahcall, Neta A
dc.contributor.authorBailer‐Jones, C A L
dc.contributor.authorBarentine, J C
dc.contributor.authorBassett, Bruce A
dc.contributor.authorBecker, Andrew C
dc.contributor.authorBeers, Timothy C
dc.contributor.authorBell, Eric F
dc.contributor.authorBelokurov, Vasily
dc.contributor.authorBerlind, Andreas A
dc.contributor.authorBerman, Eileen F
dc.contributor.authorBernardi, Mariangela
dc.contributor.authorBickerton, Steven J
dc.contributor.authorBizyaev, Dmitry
dc.contributor.authorBlakeslee, John P
dc.contributor.authorBlanton, Michael R
dc.contributor.authorBochanski, John J
dc.contributor.authorBoroski, William N
dc.contributor.authorBrewington, Howard J
dc.contributor.authorBrinchmann, Jarle
dc.contributor.authorBrinkmann, J
dc.contributor.authorBrunner, Robert J
dc.contributor.authorBudavári, Tamás
dc.contributor.authorCarey, Larry N
dc.date.accessioned2021-10-08T07:20:42Z
dc.date.available2021-10-08T07:20:42Z
dc.date.issued2009
dc.description.abstractThis paper describes the Seventh Data Release of the Sloan Digital Sky Survey (SDSS), marking the completion of the original goals of the SDSS and the end of the phase known as SDSS-II. It includes 11, 663 deg2 of imaging data, with most of the ~2000 deg2 increment over the previous data release lying in regions of low Galactic latitude. The catalog contains five-band photometry for 357 million distinct objects. The survey also includes repeat photometry on a 120° long, 2fdg5 wide stripe along the celestial equator in the Southern Galactic Cap, with some regions covered by as many as 90 individual imaging runs. We include a co-addition of the best of these data, going roughly 2 mag fainter than the main survey over 250 deg2. The survey has completed spectroscopy over 9380 deg2 the spectroscopy is now complete over a large contiguous area of the Northern Galactic Cap, closing the gap that was present in previous data releases. There are over 1.6 million spectra in total, including 930, 000 galaxies, 120, 000 quasars, and 460, 000 stars. The data release includes improved stellar photometry at low Galactic latitude. The astrometry has all been recalibrated with the second version of the USNO CCD Astrograph Catalog, reducing the rms statistical errors at the bright end to 45 milliarcseconds per coordinate. We further quantify a systematic error in bright galaxy photometry due to poor sky determination ; this problem is less severe than previously reported for the majority of galaxies. Finally, we describe a series of improvements to the spectroscopic reductions, including better flat fielding and improved wavelength calibration at the blue end, better processing of objects with extremely strong narrow emission lines, and an improved determination of stellar metallicities.
dc.identifier.apacitationAbazajian, K. N., , AgYeros, M. A., Allam, S. S., Prieto, C. A., An, D., ... Carey, L. N. (2009). The seventh data release of the sloan digital sky survey. <i>The Astrophysical Journal, Supplement Series</i>, 182(2), 543 - 558. http://hdl.handle.net/11427/34984en_ZA
dc.identifier.chicagocitationAbazajian, Kevork N, , Marcel A AgYeros, Sahar S Allam, Carlos Allende Prieto, Deokkeun An, Kurt S J Anderson, et al "The seventh data release of the sloan digital sky survey." <i>The Astrophysical Journal, Supplement Series</i> 182, 2. (2009): 543 - 558. http://hdl.handle.net/11427/34984en_ZA
dc.identifier.citationAbazajian, K.N., , AgYeros, M.A., Allam, S.S., Prieto, C.A., An, D., Anderson, K.S.J. & Anderson, S.F. et al. 2009. The seventh data release of the sloan digital sky survey. <i>The Astrophysical Journal, Supplement Series.</i> 182(2):543 - 558. http://hdl.handle.net/11427/34984en_ZA
dc.identifier.issn0067-0049
dc.identifier.issn0093-187X
dc.identifier.issn1538-4365
dc.identifier.ris TY - Journal Article AU - Abazajian, Kevork N AU - Adelman‐McCarthy, Jennifer K AU - AgYeros, Marcel A AU - Allam, Sahar S AU - Prieto, Carlos Allende AU - An, Deokkeun AU - Anderson, Kurt S J AU - Anderson, Scott F AU - Annis, James AU - Bahcall, Neta A AU - Bailer‐Jones, C A L AU - Barentine, J C AU - Bassett, Bruce A AU - Becker, Andrew C AU - Beers, Timothy C AU - Bell, Eric F AU - Belokurov, Vasily AU - Berlind, Andreas A AU - Berman, Eileen F AU - Bernardi, Mariangela AU - Bickerton, Steven J AU - Bizyaev, Dmitry AU - Blakeslee, John P AU - Blanton, Michael R AU - Bochanski, John J AU - Boroski, William N AU - Brewington, Howard J AU - Brinchmann, Jarle AU - Brinkmann, J AU - Brunner, Robert J AU - Budavári, Tamás AU - Carey, Larry N AB - This paper describes the Seventh Data Release of the Sloan Digital Sky Survey (SDSS), marking the completion of the original goals of the SDSS and the end of the phase known as SDSS-II. It includes 11, 663 deg2 of imaging data, with most of the ~2000 deg2 increment over the previous data release lying in regions of low Galactic latitude. The catalog contains five-band photometry for 357 million distinct objects. The survey also includes repeat photometry on a 120° long, 2fdg5 wide stripe along the celestial equator in the Southern Galactic Cap, with some regions covered by as many as 90 individual imaging runs. We include a co-addition of the best of these data, going roughly 2 mag fainter than the main survey over 250 deg2. The survey has completed spectroscopy over 9380 deg2 the spectroscopy is now complete over a large contiguous area of the Northern Galactic Cap, closing the gap that was present in previous data releases. There are over 1.6 million spectra in total, including 930, 000 galaxies, 120, 000 quasars, and 460, 000 stars. The data release includes improved stellar photometry at low Galactic latitude. The astrometry has all been recalibrated with the second version of the USNO CCD Astrograph Catalog, reducing the rms statistical errors at the bright end to 45 milliarcseconds per coordinate. We further quantify a systematic error in bright galaxy photometry due to poor sky determination ; this problem is less severe than previously reported for the majority of galaxies. Finally, we describe a series of improvements to the spectroscopic reductions, including better flat fielding and improved wavelength calibration at the blue end, better processing of objects with extremely strong narrow emission lines, and an improved determination of stellar metallicities. DA - 2009 DB - OpenUCT DP - University of Cape Town IS - 2 J1 - The Astrophysical Journal, Supplement Series LK - https://open.uct.ac.za PY - 2009 SM - 0067-0049 SM - 0093-187X SM - 1538-4365 T1 - The seventh data release of the sloan digital sky survey TI - The seventh data release of the sloan digital sky survey UR - http://hdl.handle.net/11427/34984 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/34984
dc.identifier.vancouvercitationAbazajian KN, , AgYeros MA, Allam SS, Prieto CA, An D, et al. The seventh data release of the sloan digital sky survey. The Astrophysical Journal, Supplement Series. 2009;182(2):543 - 558. http://hdl.handle.net/11427/34984.en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Astronomy
dc.publisher.facultyFaculty of Science
dc.sourceThe Astrophysical Journal, Supplement Series
dc.source.journalissue2
dc.source.journalvolume182
dc.source.pagination543 - 558
dc.source.urihttps://dx.doi.org/10.1088/0067-0049/182/2/543
dc.subject.otherastrophysics
dc.subject.othercosmology and astronomy
dc.subject.othergeneral and miscellaneous//mathematics
dc.subject.othercomputing
dc.subject.otherand information science
dc.subject.othercalibration
dc.subject.othercatalogs
dc.subject.othercharge-coupled devices
dc.subject.otherequator
dc.subject.othererrors
dc.subject.othergalaxies
dc.subject.otherphotometry
dc.subject.otherquasars
dc.subject.otherspectroscopy
dc.subject.otherstars
dc.subject.otherwavelengths
dc.titleThe seventh data release of the sloan digital sky survey
dc.typeJournal Article
uct.type.publicationResearch
uct.type.resourceJournal Article
Files
Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
AbazajianKevorkN_seventh_data_re_2009.pdf
Size:
3.51 MB
Format:
Adobe Portable Document Format
Description:
Collections