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X-ray observations were used to examine the complex temperature structure of Abell 85, a cool-core galaxy cluster. Temperature features can provide evidence of merging events which shock heat the intracluster gas. Temperature maps were made…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-19 David Schenck , Abhirup Datta , Jack Burns , Sam Skillman

We present the results of a {\it Chandra} observation of the central region of Abell 3112. This cluster has a powerful radio source in the center and was believed to have a strong cooling flow. The X-ray image shows that the intracluster…

Astrophysics · Physics 2009-11-07 Motokazu Takizawa , Craig L. Sarazin , Elizabeth L. Blanton , Greg B. Taylor

We present a new analysis of very deep Chandra observations of the galaxy cluster Abell 1795. Utilizing nearly 750 ks of net ACIS imaging, we are able to resolve the thermodynamic structure of the Intracluster Medium (ICM) on length scales…

Astrophysics of Galaxies · Physics 2015-06-22 S. Ehlert , M. McDonald , E. D. Miller , L. P. David , M. W. Bautz

The physics of the coolest phases in the hot Intra-Cluster Medium (ICM) of clusters of galaxies is yet to be fully unveiled. X-ray cavities blown by the central Active Galactic Nucleus (AGN) contain enough energy to heat the surrounding gas…

Cosmology and Nongalactic Astrophysics · Physics 2011-05-25 J. de Plaa , N. Werner , A. Simionescu , J. S. Kaastra , Y. G. Grange , Jacco Vink

Based on a detailed analysis of the high-quality Chandra, XMM-Newton, and Suzaku data of the X-ray bright cluster of galaxies Abell 1795, we report clear evidence for a two-phase intracluster medium (ICM) structure, which consists of a cool…

High Energy Astrophysical Phenomena · Physics 2015-06-04 Liyi Gu , Haiguang Xu , Junhua Gu , Madoka Kawaharada , Kazuhiro Nakazawa , Zhenzhen Qin , Jingying Wang , Yu Wang , Zhongli Zhang , Kazuo Makishima

We present the Chandra analysis of the galaxy cluster A521 (z=0.247). The high resolution of the Chandra observation has allowed us to refine the original merging scenario proposed for A521, and to reveal new features in its X-ray emission.…

Astrophysics · Physics 2009-11-11 C. Ferrari , M. Arnaud , S. Ettori , S. Maurogordato , J. Rho

We analyze the X-ray and radio properties of the galaxy cluster Abell 2009 (z=0.152) to complete the in-depth study of a subsample of objects from the ROSAT Brightest Cluster Sample with relatively high X-ray flux and H$\alpha$ line…

Astrophysics of Galaxies · Physics 2025-03-12 I. Fornasiero , F. Ubertosi , M. Gitti

We present a detailed analysis of the thermal X-ray emission from the intracluster medium (ICM) in the cool-core galaxy cluster Abell 2667 ($z=0.23$). Our goal is to detect low-temperature ($<2$ keV) X-ray emitting gas, potentially…

Cosmology and Nongalactic Astrophysics · Physics 2025-02-12 M. Lepore , C. Pinto , P. Tozzi , M. Gaspari , F. Gastaldello , A. Liu , P. Rosati , R. van Weeren , G. Cresci , E. Iani , G. Rodighiero

Abell~1142 is a low-mass galaxy cluster at low redshift containing two comparable Brightest Cluster Galaxies (BCG) resembling a scaled-down version of the Coma Cluster. Our Chandra analysis reveals an X-ray emission peak, roughly 100 kpc…

High Energy Astrophysical Phenomena · Physics 2016-04-20 Yuanyuan Su , David A. Buote , Fabio Gastaldello , Reinout van Weeren

We present results based on the systematic analysis of high resolution 95 ks Chandra observations of the strong cool core cluster Abell 2390 at the redshift of z= 0.228 that hosts an energetic radio AGN. This analysis has enabled us to…

Cosmology and Nongalactic Astrophysics · Physics 2024-06-24 S. S. Sonkamble , N. D. Vagshette , P. K. Pawar , M. K. Patil

We present the results of a Chandra observation of the cooling core cluster Abell 2063. Spectral analysis shows that there is cool gas (2 keV) associated with the cluster core, which is more than a factor of 2 cooler than the outer cluster…

Astrophysics · Physics 2008-11-26 Kalin N. Kanov , Craig L. Sarazin , Amalia K. Hicks

We present a new 400 ks Chandra X-ray observation of the merging galaxy cluster Abell 2146. This deep observation reveals detailed structure associated with the major merger event including the Mach M=2.3+/-0.2 bow shock ahead of the dense,…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 H. R. Russell , B. R. McNamara , J. S. Sanders , A. C. Fabian , P. E. J. Nulsen , R. E. A. Canning , S. A. Baum , M. Donahue , A. C. Edge , L. J. King , C. P. O'Dea

Aims. We map the temperature structure of the intra-cluster medium (ICM) within a nearly complete X-ray flux limited sample of galaxy clusters in the redshift range z=[0.045,0.096]. Our sample contains seven bright clusters of galaxies…

Astrophysics · Physics 2009-11-13 H. Bourdin , P. Mazzotta

Using the EPIC and RGS data from a deep (~200 ks) XMM-Newton observation, we investigate the temperature structure (kT and sigma_T ) and the abundances of 9 elements (O, Ne, Mg, Si, S, Ar, Ca, Fe and Ni) of the intra-cluster medium (ICM) in…

High Energy Astrophysical Phenomena · Physics 2015-02-25 François Mernier , Jelle de Plaa , Lorenzo Lovisari , Ciro Pinto , Yu-Ying Zhang , Jelle S. Kaastra , Norbert Werner , Aurora Simionescu

To better constrain models of cool core galaxy cluster formation, we have used X-ray observations taken from the Chandra and ROSAT archives to examine the properties of cool core and non-cool core clusters, especially beyond the cluster…

Cosmology and Nongalactic Astrophysics · Physics 2010-01-15 Jason W. Henning , Brennan Gantner , Jack O. Burns , Eric J. Hallman

Detection of the copious amount of X-ray emission from the dilute hot plasma in galaxy clusters suggests that a substantial fraction of the central intracluster medium (ICM) is cooling radiatively on a time scale much faster than the Hubble…

Astrophysics of Galaxies · Physics 2017-04-21 M K Patil

We present results from a 38 ks Chandra X-ray observation of the z=0.059 galaxy cluster A1991. The cluster has a bright X-ray core and a central temperature gradient that declines inward from 2.7 keV at 130 kpc to approximately 1.6 keV at…

We report the results from a spatially resolved spectroscopy study with XMM-Newton on the relaxed cluster of galaxies Abell 478. From the EPIC data we extract a temperature profile and radial abundance profiles for Ne, Mg, Si, S, Ca, Fe and…

Astrophysics · Physics 2009-11-10 J. de Plaa , J. S. Kaastra , T. Tamura , E. Pointecouteau , M. Mendez , J. R. Peterson

We present a new 8.5 ks Chandra observation of Abell 1885, obtained as part of the Cluster Evolution Reference Ensemble At Low-z (CEREAL) survey of ~200 low-z galaxy groups and clusters. These data reveal that Abell 1885 is a strong cool…

Cosmology and Nongalactic Astrophysics · Physics 2025-06-05 Laurel White , Michael McDonald , Francesco Ubertosi , Massimo Gaspari , Julie Hlavacek-Larrondo , Helen Russell , Taweewat Somboonpanyakul

This paper presents a comprehensive analysis of 30 ks Chandra and 46.8 ks (13 Hr) 1.4 GHz GMRT radio data on the cool-core cluster RXCJ0352.9+1941 with an objective to investigate AGN activities at its core. This study confirms a pair of…

High Energy Astrophysical Phenomena · Physics 2024-09-04 Satish S. Sonkamble , S. K. Kadam , Surajit Paul , M. B. Pandge , P. K. Pawar , M. K. Patil
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