Results 1 to 10 of about 16,695 (201)

A Multiphase Model for the Intracluster Medium [PDF]

, 1999
Constraints on the clustered mass density \Omega_m of the universe derived from the mean intracluster gas fraction of X-ray clusters may be biased by a single-phase assumption for the thermodynamic structure of the intracluster medium (ICM). We propose a
A. E. Evrard, Birkinshaw M., Cavaliere A., Cen R., Cole S., D. Nagai, David L. P., Eke V. R., Fabian A. C., Frenk C. S., Gunn K. F., Hamuy M., Inagaki Y., Irwin J. A., Irwin J. A., Jones M., M. E. Sulkanen, Mohr J. J., Navarro J. F., Neumann D. M., Nulsen P. E. J., Peres C. B., Raymond J. C., Riess A. G., Thomas P., Thomas P. A., White D. A., White S. D. M., Zaroubi S.   +28 more
core   +5 more sources

Two-Temperature Intracluster Medium in Merging Clusters of Galaxies [PDF]

, 1999
We investigate the evolution of intracluster medium during a cluster merger, explicitly considering the relaxation process between the ions and electrons by N-body and hydrodynamical simulations.
Edge A. C., Fujita Y., Ishizaka C., Jing Y. P., Nakamura F. E., Navarro J. F., Rhee G. F. R. N., Schindler S., Serna A., Solanes J. M., Yoshikawa K.   +10 more
core   +3 more sources

The Survival of Planetary Nebulae in the Intracluster Medium [PDF]

, 2005
The stellar population stripped from galaxies in clusters evolve under the extreme conditions imposed by the intracluster (IC) medium. Intracluster stars generally suffer very high systemic velocities, and evolve within a rarefied and extremely hot IC ...
Eva Villaver, Franco J., Letizia Stanghellini, MacDonald J., Mendez R. H.   +4 more
core   +3 more sources

Buoyant Bubbles in a Cooling Intracluster Medium I. Hydrodynamic Bubbles [PDF]

, 2006
Over the past several years, numerous examples of X-ray cavities coincident with radio sources have been observed in so-called "cool core" clusters of galaxies.
Gardini, A.
core   +5 more sources

Effects of Galaxy Formation on Thermodynamics of the Intracluster Medium [PDF]

, 2007
We present detailed comparisons of the intracluster medium (ICM) in cosmological Eulerian cluster simulations with deep Chandra observations of nearby relaxed clusters.
Alexey Vikhlinin, Andrey V. Kravtsov, Daisuke Nagai, Edge A. C., Kaiser N., Vazza F., White D. A.   +6 more
core   +4 more sources

Diffuse radio emission from the Intracluster medium [PDF]

, 2004
An important aspect of the radio emission from galaxy clusters is represented by the diffuse radio sources associated with the intracluster medium: radio halos, relics and mini-halos.
Blasi, Brunetti, C. Burigana, Enßlin, Enßlin, Enßlin, Feretti, Feretti, Fujita, Gabici, Giovannini, Giovannini, Giovannini, Giovannini, Gitti, Kempner, L. Feretti, Miniati, Petrosian, Pfrommer, Ryu, Röttgering, Sunyaev, T.A. Enßlin, Venturi, Wise   +25 more
core   +3 more sources

CHANDRA X-Ray Observations of A119: Cold Fronts and a Shock in an Evolved Off-axis Merger

The Astrophysical Journal, 2023
We present Chandra X-ray observations of the dynamically complex galaxy cluster A119 ( z = 0.044). A119 is host to two narrow-angle-tail (NAT) radio sources (0053-015 and 0053-016), whose tails are oriented parallel to each other, despite orthogonally ...
Courtney B. Watson, Elizabeth L. Blanton, Scott W. Randall, Craig L. Sarazin, Arnab Sarkar, John A. ZuHone, E. M. Douglass   +6 more
doaj   +1 more source

Inferences from Surface Brightness Fluctuations of Zwicky 3146 via the Sunyaev–Zel’dovich Effect and X-Ray Observations

The Astrophysical Journal, 2023
The galaxy cluster Zwicky 3146 is a sloshing cool-core cluster at z = 0.291 that in Sunyaev–Zel’dovich (SZ) imaging does not appear to exhibit significant pressure substructure in the intracluster medium.
Charles E. Romero, Massimo Gaspari, Gerrit Schellenberger, Tanay Bhandarkar, Mark Devlin, Simon R. Dicker, William Forman, Rishi Khatri, Ralph Kraft, Luca Di Mascolo, Brian S. Mason, Emily Moravec, Tony Mroczkowski, Paul Nulsen, John Orlowski-Scherer, Karen Perez Sarmiento, Craig Sarazin, Jonathan Sievers, Yuanyuan Su   +18 more
doaj   +1 more source

A Heating Mechanism via Magnetic Pumping in the Intracluster Medium

The Astrophysical Journal, 2023
Turbulence driven by active galactic nuclei activity, cluster mergers, and galaxy motion constitutes an attractive energy source for heating the intracluster medium (ICM).
Francisco Ley, Ellen G. Zweibel, Mario Riquelme, Lorenzo Sironi, Drake Miller, Aaron Tran   +5 more
doaj   +1 more source

Mirror Acceleration of Cosmic Rays in a High-β Medium

The Astrophysical Journal, 2023
In a weakly compressible high- β medium, pitch-angle scattering and the associated scattering acceleration of cosmic rays (CRs) by anisotropic Alfvén and slow modes of magnetohydrodynamic (MHD) turbulence is inefficient.
Alex Lazarian, Siyao Xu
doaj   +1 more source