Results 51 to 60 of about 2,662,849 (293)
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
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A dynamical model for the heavily ram pressure stripped Virgo spiral galaxy NGC 4522 [PDF]
, 2006 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
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THE NON-THERMAL INTRACLUSTER MEDIUM [PDF]
The Astrophysical Journal, 2010 WMAP's detection of the Sunyaev-Zel'dovich effect at a much reduced level among several large samples of rich clusters is interpreted in terms of conventional physics. It has been suggested that the central soft X-ray and EUV excess found in some clusters cannot be of thermal origin, due to problems with rapid gas cooling and the persistent non ...
Richard Lieu +2 more
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Electron Preacceleration in Weak Quasi-perpendicular Shocks in High-beta Intracluster Medium [PDF]
Astrophysical Journal, 2019 Giant radio relics in the outskirts of galaxy clusters are known to be lit up by the relativistic electrons produced via diffusive shock acceleration (DSA) in shocks with low sonic Mach numbers, Ms ≲ 3.
Hyesung Kang, D. Ryu, J. Ha
semanticscholar +1 more source
The Sunyaev–Zel'dovich temperature of the intracluster medium [PDF]
Monthly Notices of the Royal Astronomical Society, 2008 This version accepted for publication in MNRAS following minor ...
Kay, Scott T +3 more
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Turbulent pressure support and hydrostatic mass bias in the intracluster medium [PDF]
Monthly notices of the Royal Astronomical Society, 2019 The degree of turbulent pressure support by residual gas motions in galaxy clusters is not well known. Mass modelling of combined X-ray and Sunyaev–Zel’dovich observations provides an estimate of turbulent pressure support in the outer regions of ...
M. Angelinelli +7 more
semanticscholar +1 more source
THE INTRAGROUP VERSUS THE INTRACLUSTER MEDIUM
The Astrophysical Journal, 2016 ABSTRACT Galaxy groups differ from clusters primarily by way of their lower masses, M ∼ 1014 M ⊙ versus M ∼ 1015 M ⊙. We discuss how mass affects the thermal state of the intracluster or the intragroup medium, specifically as to their entropy levels and radial ...
Cavaliere, A. +2 more
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The Enrichment of the Intracluster Medium [PDF]
Symposium - International Astronomical Union, 1996 Recent observational evidence for steep dwarf galaxy luminosity functions in several rich clusters has led to speculation that their precursors, via supernovae (SNe)-driven galactic winds, may be the source of the majority of gas and metals inferred from intracluster medium (ICM) x-ray observations (Trentham 1994).
B. K. Gibson, F. Matteucci
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Efficient Production of Sound Waves by AGN Jets in the Intracluster Medium [PDF]
Astrophysical Journal, 2019 We investigate the interaction between active galactic nucleus (AGN) jets and the intracluster medium (ICM) of galaxy clusters. Specifically, we study the efficiency with which jets can drive sound waves into the ICM. Previous works focused on this issue
C. J. Bambic, C. Reynolds
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Imprints of mass accretion history on the shape of the intracluster medium and the TX–M relation [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We use a statistical sample of galaxy clusters from a large cosmological N-body + hydrodynamics simulation to examine the relation between morphology, or shape, of the X-ray emitting intracluster medium (ICM) and the mass accretion history of the ...
Huanqing Chen +4 more
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