Results 51 to 60 of about 68,110 (257)

Chemical Evolution of Galaxies and Intracluster Medium [PDF]

open access: green, 2002
In this series of lectures I discuss the basic principles and the modelling of the chemical evolution of galaxies. In particular, I present models for the chemical evolution of the Milky Way galaxy and compare them with the available observational data.
F. Matteuccí
openalex   +4 more sources

Modelling the Energy Spectra of Radio Relics

open access: yesGalaxies, 2021
Radio relics are diffuse synchrotron sources that illuminate shock waves in the intracluster medium. In recent years, radio telescopes have provided detailed observations about relics.
Denis Wittor   +2 more
doaj   +1 more source

Broad Band Optical Polarimetric Study of IC 1805 [PDF]

open access: yes, 2007
We present the BVR broad band polarimetric observations of 51 stars belonging to the young open cluster IC 1805. Along with the photometric data from the literature we have modeled and subtracted the foreground dust contribution from the maximum ...
G., Maheswar   +5 more
core   +2 more sources

Simulating the transport of relativistic electrons and magnetic fields injected by radio galaxies in the intracluster medium [PDF]

open access: yes, 2021
Radio galaxies play an important role in the seeding of cosmic rays and magnetic fields in galaxy clusters. Here, we simulate the evolution of relativistic electrons injected into the intracluster medium by radio galaxies. Using passive tracer particles added to magnetohydrodynamical adaptive-mesh simulations, we calculate the evolution of the spectrum
arxiv   +1 more source

Intracluster Medium through three years of WMAP [PDF]

open access: yes, 2006
Wilkinson Microwave Anisotropy Probe (WMAP) has provided us with the yet highest resolution all-sky maps of the Cosmic Microwave Background. As a result of thermal Sunyaev-Zel'dovich effect, clusters of galaxies are imprinted as tiny, poorly resolved ...
Afshordi   +22 more
core   +3 more sources

Signatures of Galaxy Formation in the Intracluster Medium [PDF]

open access: yesThe Astrophysical Journal, 2003
The intergalactic gas in groups and clusters of galaxies bears the indelible stamp of galaxy formation. We present a comparison between observations and simple theoretical models indicating that radiative cooling governs the entropy scale that sets the core radius of the intracluster medium.
G. Mark Voit   +2 more
openaire   +4 more sources

Power spectrum estimation methods on intracluster medium surface brightness fluctuations [PDF]

open access: yesEPJ Web of Conferences
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

Deep Synoptic Array Science: Two Fast Radio Burst Sources in Massive Galaxy Clusters

open access: yesThe Astrophysical Journal Letters, 2023
The hot gas that constitutes the intracluster medium (ICM) has been studied at X-ray and millimeter/submillimeter wavelengths (Sunyaev–Zel’dovich effect) for decades.
Liam Connor   +24 more
doaj   +1 more source

Dust in Clusters of Galaxies

open access: yesUniverse, 2022
The presence of dust in the intracluster medium (ICM) has been a long-standing problem that is still awaiting elucidation. Direct observational diagnostics are rather challenging (though not impossible) either because of a sparse distribution of dust in ...
Yuri A. Shchekinov   +2 more
doaj   +1 more source

Enrichment of the Intracluster Medium [PDF]

open access: yes, 1999
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

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