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On the evolutionary history of stars and their fossil mass and light
stellar content use radiation
2014/12/23
The total extragalactic background radiation can be an important test of the global star formation history (SFH). Using direct observational estimates of the SFH, along with standard assumptions about...
Pasadena, CA— New work from a team of scientists including Carnegie’s Josh Simon analyzed the chemical elements in the faintest known galaxy, called Segue 1, and determined that it is effectively a fo...
The XMM Cluster Survey: The Stellar Mass Assembly of Fossil Galaxies
The XMM Cluster Survey Stellar Mass Fossil Galaxies Cosmology and Extragalactic Astrophysics
2012/2/21
This paper presents both the result of a search for fossil systems within the XMM Cluster Survey and the Sloan Digital Sky Survey and the results of a study of the stellar mass assembly and stellar po...
The standard Friedmann model of cosmology is based on the Copernican Principle, i.e. the assumption of a homogeneous background on which structure forms via perturbations. Homogeneity underpins both g...
Two fossil groups of galaxies at z~0.4 in the COSMOS: accelerated stellar-mass build-up, different progenitors
X-rays: galaxies: clusters – galaxies: groups: general – galaxies: evolution – galaxies: luminosity function, mass function
2011/10/12
We report on 2 fossil groups of galaxies at z=0.425 and 0.372 discovered in the Cosmic Evolution Survey (COSMOS) area. Selected as X-ray extended sources, they have total masses (M_200) of 1.9(+/-0.41...
The evolution of galaxies in compact and fossil groups
evolution of galaxies compact fossil groups
2009/6/26
The evolution of galaxies in compact and fossil groups。