The Fourth Data Release of the Sloan Digital Sky Survey
| dc.creator | al., J. K. Adelman-McCarthy et | |
| dc.date | 2005-07-29 | |
| dc.date.accessioned | 2026-07-07T11:24:38Z | |
| dc.date.available | 2026-07-07T11:24:38Z | |
| dc.description | This paper describes the fourth data release of the Sloan Digital Sky Survey (SDSS), including all survey-quality data taken through June 2004. The data release includes five-band photometric data for 180 million objects selected over 6670 deg^2, and 673,280 spectra of galaxies, quasars, and stars selected from 4783 deg^2 of that imaging data using the standard SDSS target selection algorithms. These numbers represent a roughly 25% increment over those of the Third Data Release. The Fourth Data Release also includes an additional 131,840 spectra of objects selected using a variety of alternative algorithms, to address scientific issues ranging from the kinematics of stars in the Milky Way thick disk to populations of faint galaxies and quasars. | |
| dc.description | 26 pages, 2 figures | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0507711 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0507711 | |
| dc.identifier | Astrophys.J.Suppl.162:38-48,2006 | |
| dc.identifier | doi:10.1086/497917 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/195258 | |
| dc.subject | Astrophysics | |
| dc.title | The Fourth Data Release of the Sloan Digital Sky Survey | |
| dc.type | text |