Results 1 to 10 of about 17,021 (219)

Intracluster Medium through three years of WMAP [PDF]

, 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, Afshordi, Afshordi, Bennett, Benson, Carlstrom, Ettori, Fosalba, Fosalba, Hernández-Monteagudo, Hernández-Monteagudo, Kravtsov, Kravtsov, Lieu, Lin, Myers, Nagai, Navarro, Niayesh Afshordi, Schmidt, Sunyaev, Vikhlinin, Zwicky   +22 more
core   +5 more sources

Turbulence decay in the density-stratified intracluster medium [PDF]

, 2019
Turbulence evolution in a density-stratified medium differs from that of homogeneous isotropic turbulence described by the Kolmogorov picture. We evaluate the degree of this effect in the intracluster medium (ICM) with hydrodynamical simulations. We find
Shi, Xun, Zhang, Congyao
core   +2 more sources

Metal enrichment of the intracluster medium: SN-driven galactic winds [PDF]

, 2009
We investigate the role of supernova (SN)-driven galactic winds in the chemical enrichment of the intracluster medium (ICM). Such outflows on galactic scales have their origin in huge star forming regions and expel metal enriched material out of the ...
Balestra, Basu, Bergh��fer, Bisnovatyi-Kogan, Bland-Hawthorn, Breitschwerdt, DeYoung, Dowell, Durret, Everett, Fuchs, Fukazawa, Grevesse, Gulliford, Ibukiyama, Kompaneets, Lada, Larson, Lockman, Maciejewski, MacLow, Mitchell, Mushotzky, Renzini, Salpeter, Schiano, Schindler, Sedov, Shapiro, Taylor, Tozzi, Weaver, White, Wiebe, Woosley   +34 more
core   +2 more sources

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   +4 more sources

The IntraCluster Medium: An Invariant Stellar IMF [PDF]

, 1997
Evidence supporting the hypothesis of an invariant stellar Initial Mass Function is strong and varied. The intra-cluster medium in rich clusters of galaxies is one of the few contrary locations where recent interpretations of the chemical abundances have
Arnaud M., Biemont E., Edmunds M., Edvardsson B., Gibson B., Holweger H., Ishimura Y., Kroupa P., Maeder A., Nissen P., Thielemann F., van den Bergh S.   +11 more
core   +5 more sources

Intracluster medium of the merging cluster Abell 3395

, 2011
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 ...
Angrick, Blanton, Burgess, Burns, D. J. Saikia, Donnelly, Douglass, Finoguenov, Girardi, Gitti, Gregorini, Gu, Gutierrez, Gómez, Henry, Jaffe, Jones, Jones, K. P. Singh, Kauffmann, Kiran Lakhchaura, Large, Markevitch, Mitchell, Moffet, Murgia, Nakamura, Owers, R. W. Hunstead, Randall, Reid, Roettiger, Sarazin, Sault, Smith, Snowden, Tittley, Wall, Weratschnig, Wright, Xue   +40 more
core   +2 more sources

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

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

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

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