Results 41 to 50 of about 16,764 (255)
Understanding shape and centroid deviations in 39 strong lensing galaxy clusters in various dynamical states [PDF]
Through observational tests of strong lensing galaxy clusters, we can test simulation derived structure predictions that follow from Λ Cold Dark Matter (ΛCDM) cosmology.
Gassis Raven+10 more
doaj +1 more source
Dwarf Galaxies and the Origin of the Intracluster Medium [PDF]
16 pages (plain TeX file) with 3 postscript figures in a single uuencoded, compressed and tarred file.
Biman B. Nath, Masashi Chiba
openaire +4 more sources
A dynamical model for the heavily ram pressure stripped Virgo spiral galaxy NGC 4522 [PDF]
A dynamical model including ram pressure stripping is applied to the strongly HI deficient Virgo spiral galaxy NGC 4522. A carefully chosen model snapshot is compared with existing VLA HI observations.
Beck, R.+5 more
core +2 more sources
Power spectrum estimation methods on intracluster medium surface brightness fluctuations [PDF]
Accurate estimation of galaxy cluster masses is a central problem in cosmology. Turbulence is believed to introduce significant deviations from the hydrostatic mass estimates.
Bishop M.+3 more
doaj +1 more source
Enrichment of the Intracluster Medium [PDF]
The relevance of galaxies of different luminosity and mass for the chemical enrichment of the intracluster medium (ICM) is analysed. For this purpose, I adopt the composite luminosity function of cluster galaxies from Trentham (1998), which exhibits a significant rise at the very faint end.
openaire +3 more sources
INTRACLUSTER MEDIUM OF THE MERGING CLUSTER A3395 [PDF]
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, A3395 W, and a filament connecting NE to W.
K. P. Singh+3 more
openaire +3 more sources
Stability analysis of convection in the intracluster medium [PDF]
We use the machinery usually employed for studying the onset of Rayleigh--B nard convection in hydro- and magnetohydro-dynamic settings to address the onset of convection induced by the magnetothermal instability and the heat-flux-buoyancy-driven-instability in the weakly-collisional magnetized plasma permeating the intracluster medium.
Gupta, H.+3 more
openaire +3 more sources
Turbulence in the intracluster medium: simulations, observables & thermodynamics [PDF]
We conduct two kinds of homogeneous isotropic turbulence simulations relevant for the intracluster medium (ICM): (i) pure turbulence runs without radiative cooling; (ii) turbulent heating$+$radiative cooling runs with global thermal balance.
Mohapatra, Rajsekhar, Sharma, Prateek
core +2 more sources
We present panco2, an open-source Python library designed to extract galaxy cluster pressure profiles from maps of the thermal Sunyaev-Zeldovich effect.
Florian Kéruzoré+6 more
doaj +2 more sources
Chemical and Thermal History of the Intracluster Medium
Clusters of galaxies can be seen as giant astrophysical laboratories enclosing matter in a large enough volume, so that the matter composition can be taken as representing the composition of our Universe.
Boehringer, Hans
core +1 more source