Chameleonf(R)gravity in the virialized cluster
نویسندگان
چکیده
منابع مشابه
The Optical Luminosity Function of Virialized Systems
We determine the optical luminosity function of virialized systems over the full range of density enhancements, from single galaxies to clusters of galaxies. The analysis is based on galaxy systems identified from the Nearby Optical Galaxy (NOG) sample, which is the largest, all-sky catalog of objectivelyidentified bound objects presently available. We find that the B-band luminosity function o...
متن کاملThe Largest Virialized Dark Halo in the Universe
Using semi-analytic approach, we present an estimate of the properties of the largest virialized dark halos in the present universe for three different scenarios of structure formation: SCDM, ΛCDM and OCDM models. The resulting virial mass and temperature increase from the lowest values of 1.6 × 10hM⊙ and 9.8 keV in OCDM, the mid-range values of 9.0 × 10hM⊙ and 31 keV in ΛCDM, to the highest va...
متن کاملThe virialized mass of dark matter haloes
Virial mass is used as an estimator for the mass of a dark matter halo. However, the commonly used constant overdensity criterion does not reflect the dynamical structure of haloes. Here we analyze dark matter cosmological simulations in order to obtain properties of haloes of different masses focusing on the size of the region with zero mean radial velocity. Dark matter inside this region is s...
متن کاملLower Metal Enrichment of Virialized Gas in Minihalos
We differentiate between the metal enrichment of the gas in virialized minihalos and that of the intergalactic medium at high redshift, pertinent to cosmological reionization, with the initial expectation that gas in the high density regions within formed dark matter halos may be more robust thus resistant to mixing with lower density intergalactic medium. Using detailed hydrodynamic simulation...
متن کاملCosmology with the Space-Luminosity Distribution of Virialized Halos
We derive the observed luminosity function of virialized systems. Coupling this statistic with the mass function predicted by CDM cosmogonies we obtain the functional behavior of the mass–to–light ratio over a wide dynamical range in mass. We conclude that the mass–to–light ratio has a minimum close to the luminosity of an L∗ galaxy halo. We also show how to derive in a self-consistent way the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review D
سال: 2012
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.85.124054