Sloan Digital Sky Survey
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Sloan Digital Sky Survey finds z=5.82 Quasar
13 Apr 2000 - SDSS announced a quasar with a redshift of z = 5.82. Of course, the press release called it the "Most Distant Object Ever Observed" which discounts the z = 6.68 galaxy. [ Stern et al.
Sloan Digital Sky Survey Universal Map
(Added 10/30/03) The Sloan Digital Sky Survey, a multi-year and -national project to map 1/4 of the sky and produce a catalogue of over 100 million objects, ...
The Sloan Digital Sky Survey-III (SDSS) has released the largest digital colour image of the sky ever made from millions of 2.8-megapixel images. The complete terapixel image would require 500,000 high definition TVs to view it at full resolution.
Credit: The Sloan Digital Sky Survey
Intensity plot spectrum for a star. Note the absorption lines for the Balmer Series.
On January 9, 2006, Mario Juric and others of Princeton University announced that the Sloan Digital Sky Survey of the northern sky found a huge and diffuse structure (spread out across an area around 5,000 times the size of a full moon) within the ...
WMAP's third year data, combined with data from the Sloan Digital Sky Survey constrain Omega_0 to be 1 within 1%.
Early Universe
In the early universe Omega is the ratio of the energy density to the critical density at that time.
simulations of billions of dark matter particles have been used to confirm that the cold dark matter model of structure formation is consistent with the structures observed in the universe through galaxy surveys, such as the Sloan Digital Sky Survey ...
Speca (an acronym for Spiral-host Episodic radio galaxy tracing Cluster Accretion) first came to Ananda's attention in an image that combined data from the visible-light Sloan Digital Sky Survey and the FIRST survey done with the National Science ...
The Sloan Digital Sky Survey is greatly expanding the volume to a million galaxies in one-quarter of the entire sky. In the first phase completed mid-2005, it measured spectra of more than 675,000 galaxies and 90,000 quasars.
This has been observed for QSOs at z 6, found from the Sloan Digital Sky Survey (SDSS) as reported by Becker et al. (2001 AJ 122, 2850). The rapid increase in H I opacity across the range z=5.7-6.
- Shapley-Ames Catalogue
- Sloan Digital Sky Survey (SDSS)
- Smithsonian Astrophysical Observatory Catalog (SAO Catalog)
- Southern Reference Stars (SRS)
- Southern Sky Survey ...
The "main belt" asteroids can actually be categorized as divided into two belts, according to confirming data from the current Sloan Digital Sky Survey. The inner belt, centered at 2.
The Lyman Alpha feature (large bump) is supposed to be at a wavelength of 1216 Å! Click on the image to see the full size version. Image from Sloan Digital Sky Survey. Image credit: Donald Schneider and Xiaohui Fan, SDSS Collaboration.
Universe can be described as filamentary, and cosmological N-body simulations produced by theoretical astronomers agree well with the observed structure as revealed by surveys such as the 2dF Galaxy Redshift Survey and the Sloan Digital Sky Survey.
1993 - Start of the 20 cm VLA FIRST survey
1997 - Two Micron All Sky Survey (2MASS) commences
1998 - Sloan Digital Sky Survey commences
2003 - 2dF Survey of Galaxy redshifts published; 2MASS completes ...
 See also: Sky, Galaxy, Light, Galaxies, Time
  
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