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Luminous red galaxies in the Sloan D...

Loh, Yeong-Shang.

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Luminous red galaxies in the Sloan Digital Sky Survey.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Luminous red galaxies in the Sloan Digital Sky Survey./
作者:	Loh, Yeong-Shang.
面頁冊數:	173 p.
附註:	Source: Dissertation Abstracts International, Volume: 64-10, Section: B, page: 4986.
Contained By:	Dissertation Abstracts International64-10B.
標題:	Physics, Astronomy and Astrophysics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3110240
ISBN:	0496577792

Luminous red galaxies in the Sloan Digital Sky Survey.
Loh, Yeong-Shang.

Luminous red galaxies in the Sloan Digital Sky Survey. - 173 p.

Source: Dissertation Abstracts International, Volume: 64-10, Section: B, page: 4986.

Thesis (Ph.D.)--Princeton University, 2004.

We determine the luminosity function and evolution of 22,562 Luminous Red Galaxies (LRG) with 0.08 < z < 0.44 from the Sloan Digital Sky Survey (SDSS). The universal field galaxy luminosity function with a steep exponential bright end cut-off expected from a Schechter form is confirmed to z &sim; 0.4. We do not discern any evolution in the comoving number density of these luminous early-type galaxies, once biases due to photometric errors are taken into account.

ISBN: 0496577792Subjects--Topical Terms:

1019521
Physics, Astronomy and Astrophysics.

Luminous red galaxies in the Sloan Digital Sky Survey.
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245 1 0 $a Luminous red galaxies in the Sloan Digital Sky Survey.
300 $a 173 p.
500 $a Source: Dissertation Abstracts International, Volume: 64-10, Section: B, page: 4986.
500 $a Adviser: Michael A. Strauss.
502 $a Thesis (Ph.D.)--Princeton University, 2004.
520 $a We determine the luminosity function and evolution of 22,562 Luminous Red Galaxies (LRG) with 0.08 < z < 0.44 from the Sloan Digital Sky Survey (SDSS). The universal field galaxy luminosity function with a steep exponential bright end cut-off expected from a Schechter form is confirmed to z &sim; 0.4. We do not discern any evolution in the comoving number density of these luminous early-type galaxies, once biases due to photometric errors are taken into account.
520 $a Using 2099 deg2 of SDSS imaging data, we search for bright early-type galaxies within 1 h-1 Mpc of LRG with 0.12 < z < 0.38 to study the bright end of the luminosity distribution at this scale. The brightest galaxies (nearly always an LRG) in LRG fields are too bright if other members in the same field are drawn from an exponentially decaying luminosity function. The luminosity gap between the brightest and the second brightest galaxy is large (&sim;0.8 mag). When the LRG fields were split into group-like and cluster-like environments, the former gives a larger gap. The gap shows little evolution with redshifts, putting stringent constraints on the scenario of the growth of Brightest Cluster (or Group) Galaxies by recent cannibalism of cluster members.
520 $a We calibrate the observed color-magnitude-redshift relation for early-type galaxies. We use LRGs as spectroscopic references and measure the color of imaging galaxies that clustered around each LRG. We bin these galaxies in redshift and perform an optimal background subtraction to recover the color-magnitude relation. The observed scatter around this color-magnitude relation is also measured.
520 $a We study the environments of LRG by counting the number of early-type galaxies brighter than M* within 1 h-1 Mpc of the LRG. LRGs are binned in redshift and treated as a single population to infer the evolution trend of their environments. Both the rich optical clusters and moderately X-ray bright clusters host at least one LRG. However, LRG are most common in group-like environments, and their richness count distribution does not change with redshift. At least 10% of LRG are found in underdense or field-like environments.
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791 $a Ph.D.
792 $a 2004
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