Results 21 to 30 of about 68,110 (257)
Entropy of the intracluster medium at high redshift [PDF]
, 2004 Recent observations of entropy of intracluster medium (ICM) at high redshift are not consistent with a redshift independent entropy floor. In order to interpret these observations, we study models in which the entropy of ICM is enhanced at the epoch of cluster formation (z_f), which then passively evolves as a result of radiative cooling until the ...
Biman B. Nath
openalex +2 more sources
Turbulence and Mixing in the Intracluster Medium [PDF]
AIP Conference Proceedings, 2009 The intracluster medium (ICM) is stably stratified in the hydrodynamic sense with the entropy $s$ increasing outwards. However, thermal conduction along magnetic field lines fundamentally changes the stability of the ICM, leading to the "heat-flux ...
Chandran, B. D. G. +3 more
core +4 more sources
Newcomers Meet the Intracluster Medium in the Coma Cluster [PDF]
, 2004 A main topic at this meeting is how galaxies are affected when they enter for the first time the cluster environment from the outskirts. Most of the times we are forced to infer the environmental effects indirectly, relying on systematic variations of ...
Bridges, T. J. +7 more
core +3 more sources
Intracluster medium of the merging cluster Abell 3395 [PDF]
The Astrophysical Journal, 2011 We present a detailed imaging and spectral analysis of the merging environment of the bimodal cluster A3395 using X-ray and radio observations. X-ray images of the cluster show five main constituents of diffuse emission : A3395 NE, A3395 SW, A3395 NW ...
Angrick +40 more
core +3 more sources
DWARF GALAXIES AND THE ORIGIN OF INTRACLUSTER MEDIUM [PDF]
Astrophys.J. 454 (1995) 604, 1995 Following the recent suggestion that it is dwarf galaxies in clusters -- as opposed to large ellipticals -- that provide the intracluster gas, we estimate the metallicity of the intracluster medium (ICM) in such a case. We derive analytical expressions for the fraction of mass of dwarf galaxies that is ejected, and estimate the metallicity of the ...
Biman B. Nath, Masashi Chiba
arxiv +6 more sources
The IntraCluster Medium: An Invariant Stellar IMF [PDF]
The Astrophysical Journal, 1997 Evidence supporting the hypothesis of an invariant stellar Initial Mass Function is strong and varied. The intra-cluster medium in rich clusters of galaxies is one of the few contrary locations where recent interpretations of the chemical abundances have
Arnaud M. +11 more
core +6 more sources
Missing Thermal Energy of the Intracluster Medium [PDF]
Monthly Notices of the Royal Astronomical Society, 2007 The Sunyaev-Zel'dovich (SZ) effect is a direct probe of thermal energy content of the Universe, induced in the cosmic microwave background (CMB) sky through scattering of CMB photons off hot electrons in the intracluster medium (ICM). We report a 9-sigma
Afshordi, Niayesh +3 more
core +5 more sources
Relativistic hydrodynamic jets in the intracluster medium [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 We have performed the first three-dimensional relativistic hydrodynamic simulations of extragalactic jets of pure leptonic and baryonic plasma compositions propagating into a hydrostatic intracluster medium environment. The numerical simulations use a general equation of state for a multi-component relativistic gas which closely reproduces the Synge ...
arxiv +5 more sources
Quasar Feedback on the Intracluster Medium [PDF]
The Astrophysical Journal, 2002 4 pages, 2 figures, uses AASTeX and emulateapj5 ...
A. Cavaliere, A. Lapi, N. Menci
openalex +5 more sources
Modified Entropy Models for the Intracluster Medium [PDF]
The Astrophysical Journal, 2002 Accepted to ApJ (24 pages, 31 figures)
G. Mark Voit +3 more
openalex +4 more sources