D
D. G. York
Researcher at University of Washington
Publications - 59
Citations - 6446
D. G. York is an academic researcher from University of Washington. The author has contributed to research in topics: Redshift & Quasar. The author has an hindex of 31, co-authored 59 publications receiving 6285 citations.
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Journal ArticleDOI
The u'g'r'i'z' Standard Star Network
J. A. Smith,Douglas L. Tucker,Steve Kent,Michael Richmond,Masataka Fukugita,Takashi Ichikawa,Shin-Ichi Ichikawa,Anders M. Jorgensen,A. Uomoto,James E. Gunn,Masaru Hamabe,Masaru Watanabe,Alin Tolea,A. A. Henden,J. Annis,J. R. Pier,Timothy A. McKay,J. Brinkmann,Bing Chen,Jon A. Holtzman,K. Shimasaku,D. G. York +21 more
TL;DR: In this paper, the 158 standard stars that define the u'g'r'i'z' photometric system were presented, which form the basis for the photometric calibration of the Sloan Digital Sky Survey (SDSS).
Journal ArticleDOI
Evidence for Reionization at z ~ 6: Detection of a Gunn-Peterson Trough in a z=6.28 Quasar
Robert H. Becker,Xiaohui Fan,Richard L. White,Michael A. Strauss,Vijay K. Narayanan,Robert H. Lupton,James E. Gunn,James Annis,Neta A. Bahcall,J. Brinkmann,A. J. Connolly,István Csabai,Paul C. Czarapata,Mamoru Doi,Timothy M. Heckman,Gregory S. Hennessy,Zeljko Ivezic,Gillian R. Knapp,D. Q. Lamb,Timothy A. McKay,Jeffrey A. Munn,Thomas Nash,Robert C. Nichol,Jeffrey R. Pier,Gordon T. Richards,Donald P. Schneider,Chris Stoughton,Alexander S. Szalay,Anirudda R. Thakar,D. G. York +29 more
TL;DR: In this article, moderate resolution Keck spectroscopy of quasars at z=5.82, 5.99 and 6.28 was presented, and it was shown that the Ly Alpha absorption in the spectra evolves strongly with redshift.
Journal ArticleDOI
Detection of massive tidal tails around the globular cluster Pal 5 with SDSS commissioning data
Michael Odenkirchen,Eva K. Grebel,C. M. Rockosi,W. Dehnen,Rodrigo A. Ibata,H. W. Rix,A. Stolte,Christian Wolf,John E. Anderson,Neta A. Bahcall,J. Brinkmann,I. Csabai,Gregory S. Hennessy,Robert B. Hindsley,Z. Ivezic,Robert H. Lupton,Jeffrey A. Munn,J. R. Pier,Christopher Stoughton,D. G. York +19 more
TL;DR: In this paper, the discovery of two well-defined tidal tails emerging from the sparse remote globular cluster Palomar 5 was reported, which make up a substantial part of the current total population of cluster stars in the magnitude interval 19.5 < i* < 22.0.
Journal ArticleDOI
The Ensemble Photometric Variability of ~25000 Quasars in the Sloan Digital Sky Survey
D. E. vanden Berk,B. C. Wilhite,Richard G. Kron,Scott F. Anderson,Robert J. Brunner,Patrick B. Hall,Z. Ivezic,Gordon T. Richards,D. P. Schneider,D. G. York,J. Brinkmann,D. Q. Lamb,Robert C. Nichol,David J. Schlegel +13 more
TL;DR: In this article, a sample of over 25,000 confirmed quasars from the Sloan Digital Sky Survey was used to show how quasar variability in the rest frame optical/UV regime depends upon rest frame time lag, luminosity, rest wavelength, redshift, presence of radio and X-ray emission, and the presence of broad absorption line systems.
Journal ArticleDOI
Identification of A-colored Stars and Structure in the Halo of the Milky Way from SDSS Commissioning Data
B. Yanny,Heidi Jo Newberg,Steve Kent,S. A. Laurent-Muehleisen,J. R. Pier,Gordon T. Richards,Christopher Stoughton,John E. Anderson,J. Annis,J. Brinkmann,Bing Chen,I. Csabai,Masao Doi,Masataka Fukugita,Gregory S. Hennessy,Z. Ivezic,Gillian R. Knapp,Robert H. Lupton,Jeffrey A. Munn,Thomas Nash,C. M. Rockosi,D. P. Schneider,J. A. Smith,D. G. York +23 more
TL;DR: In this paper, a sample of 4208 objects with magnitude 15 < g* < 22 and colors of main sequence A stars has been selected from 370 square degrees of the Sloan Digital Sky Survey (SDSS) commissioning observations.