2013ApJ...771...61L

Query : 2013ApJ...771...61L

2013ApJ...771...61L - Astrophys. J., 771, 61 (2013/July-1)

The stellar mass growth of brightest cluster galaxies in the IRAC shallow cluster survey.

LIN Y.-T., BRODWIN M., GONZALEZ A.H., BODE P., EISENHARDT P.R.M., STANFORD S.A. and VIKHLININ A.

Abstract (from CDS):

The details of the stellar mass assembly of brightest cluster galaxies (BCGs) remain an unresolved problem in galaxy formation. We have developed a novel approach that allows us to construct a sample of clusters that form an evolutionary sequence, and have applied it to the Spitzer IRAC Shallow Cluster Survey (ISCS) to examine the evolution of BCGs in progenitors of present-day clusters with mass of (2.5-4.5)x1014 M☉. We follow the cluster mass growth history extracted from a high resolution cosmological simulation, and then use an empirical method that infers the cluster mass based on the ranking of cluster luminosity to select high-z clusters of appropriate mass from ISCS to be progenitors of the given set of z = 0 clusters. We find that, between z = 1.5 and 0.5, the BCGs have grown in stellar mass by a factor of 2.3, which is well-matched by the predictions from a state-of-the-art semi-analytic model. Below z = 0.5 we see hints of differences in behavior between the model and observation.

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Journal keyword(s): galaxies: clusters: general - galaxies: elliptical and lenticular, cD - galaxies: evolution - galaxies: luminosity function, mass function

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME NOAO Deep Wide Field reg 14 32 05.75 +34 16 47.5           ~ 430 0

Query : 2013ApJ...771...61L

Basic data :
NAME NOAO Deep Wide Field -- Region defined in the Sky
Other object types: otypes_help 		reg ()
ICRS coord. (ep=J2000) : 		14 32 05.75 +34 16 47.5 [ ] D 2002AJ....123.1784D
FK4 coord. (ep=B1950 eq=1950) : 		14 29 59.98 +34 29 59.7 [ ]
Gal coord. (ep=J2000) : 		057.44983 +67.28315 [ ]
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Identifiers (4) :
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NAME NOAO Deep Wide Field NAME NDWF NAME Bootes Deep Field NAME Bootes Field

References (430 between 1850 and 2026) (Total 430)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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