Results 71 to 80 of about 2,319,978 (287)
Supernovae Types Ia/II and Intracluster Medium Enrichment [PDF]
, 1997 We re-examine the respective roles played by supernovae (SNe) Types Ia and II in enriching the intracluster medium (ICM) of galaxy clusters, in light of the recent downward shift of the ASCA abundance ratios of alpha-elements to iron favoured by Ishimaru
Gibson, Brad K. +2 more
core +2 more sources
AN ATTRACTOR FOR THE DYNAMICAL STATE OF THE INTRACLUSTER MEDIUM [PDF]
The Astrophysical Journal, 2012 Galaxy clusters provide us with important information about the cosmology of our universe. Observations of the X-ray radiation or of the SZ effect allow us to measure the density and temperature of the hot intergalactic medium between the galaxies in a cluster, which then allow us to calculate the total mass of the galaxy cluster.
Juncher, Diana +2 more
openaire +4 more sources
Deep Synoptic Array Science: Two Fast Radio Burst Sources in Massive Galaxy Clusters
The 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
Universe, 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
Multiscale analysis of turbulence evolution in the density-stratified intracluster medium [PDF]
Monthly notices of the Royal Astronomical Society, 2018 The diffuse hot medium inside clusters of galaxies typically exhibits turbulent motions whose amplitude increases with radius, as revealed by cosmological hydrodynamical simulations. However, its physical origin remains unclear. It could either be due to
Xun Shi, D. Nagai, E. Lau
semanticscholar +1 more source
The X-Ray Intracluster Medium [PDF]
Symposium - International Astronomical Union, 1996 Clusters of galaxies are the largest aggregates of matter that have decoupled from the universal expansion and have approximately evolved to a proper dynamical equilibrium configuration. While in the optical they are just observed as dense concentrations of galaxies, they are seen in X-rays as continuously connected entities through the emission of the
openaire +2 more sources
Power spectrum estimation methods on intracluster medium surface brightness fluctuations [PDF]
EPJ Web of ConferencesAccurate 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
How do atomic code uncertainties affect abundance measurements in the intracluster medium? [PDF]
Astronomical Notes - Astronomische Nachrichten, 2019 Accurate chemical abundance measurements of X-ray-emitting atmospheres pervading massive galaxies, galaxy groups, and clusters provide essential information on the star formation and chemical enrichment histories of these large-scale structures. Although
F. Mernier +8 more
semanticscholar +1 more source
Understanding shape and centroid deviations in 39 strong lensing galaxy clusters in various dynamical states [PDF]
EPJ Web of ConferencesThrough 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
Generation of internal waves by buoyant bubbles in galaxy clusters and heating of intracluster medium [PDF]
, 2018 Buoyant bubbles of relativistic plasma in cluster cores plausibly play a key role in conveying the energy from a supermassive black hole to the intracluster medium (ICM) - the process known as radio-mode AGN feedback.
Congyao Zhang +2 more
semanticscholar +1 more source