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Related papers: Chandra Observation of the Core of Abell 576

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We present data from a Chandra observation of the nearby cluster of galaxies Abell 576. The core of the cluster shows a significant departure from dynamical equilibrium. We show that this core gas is most likely the remnant of a merging…

Astrophysics · Physics 2009-11-10 Joshua C. Kempner , Laurence P. David

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 present an analysis of a Chandra observation of Abell 2034. The cluster has multiple signatures of an ongoing merger, including a cold front and probable significant heating of the intracluster medium above its equilibrium temperature.…

Astrophysics · Physics 2009-11-07 J. C. Kempner , C. L. Sarazin , M. Markevitch

Analysis of a 30,000 s X-ray observation of the Abell 3266 galaxy cluster with the ACIS on board the Chandra Observatory has produced several new insights into the cluster merger. The intracluster medium has a non-monotonically decreasing…

Astrophysics · Physics 2009-11-07 Mark J. Henriksen , Eric R. Tittley

We present an analysis of a highly asymmetric cluster merger from a Chandra observation of Abell 85. The merger shows significant disruption of the less massive subcluster from ram pressure effects. Nevertheless, a cold core, coincident…

Astrophysics · Physics 2009-11-07 Joshua Kempner , Craig Sarazin , Paul Ricker

We use Chandra data to map the gas temperature in the central region of the merging cluster A2142. The cluster is markedly nonisothermal; it appears that the central cooling flow has been disturbed but not destroyed by a merger. The X-ray…

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 an analysis of a 41 ks Chandra observation of the merging cluster Abell 2065 with the ACIS-I detector. Previous observations with ROSAT and ASCA provided evidence for an ongoing merger, but also suggested that there were two…

Astrophysics · Physics 2009-11-11 Marios Chatzikos , Craig L. Sarazin , Joshua C. Kempner

We present deep ($205 \rm ks$), \Chandra observations of the \ab295 binary merging cluster ($z=0.30$). In the X-ray image, the secondary component is clearly visible as a surface brightness peak, while the primary cluster has a flatter…

Cosmology and Nongalactic Astrophysics · Physics 2019-04-03 Aurelia Pascut , John P. Hughes

We present a new Chandra observation of the galaxy cluster Abell 2146 which has revealed a complex merging system with a gas structure that is remarkably similar to the Bullet cluster (eg. Markevitch et al. 2002). The X-ray image and…

Cosmology and Nongalactic Astrophysics · Physics 2010-08-23 H. R. Russell , J. S. Sanders , A. C. Fabian , S. A. Baum , M. Donahue , A. C. Edge , B. R. McNamara , C. P. O'Dea

We present an analysis of the structures and dynamics of the merging cluster Abell~1201, which has two sloshing cold fronts around a cooling core, and an offset gas core approximately 500kpc northwest of the center. New Chandra and…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Cheng-Jiun Ma , Matt Owers , Paul E. J. Nulsen , Brian R. McNamara , Stephen S. Murray , Warrick J. Couch

We present a combined X-ray and optical analysis of the cold front cluster Abell 1201 using archival Chandra, data and multi-object spectroscopy taken with the 3.9m Anglo Australian and 6.5m Multiple Mirror Telescopes. This paper represents…

Chandra has significantly advanced our knowledge of the processes in the intracluster gas. The discovery of remarkably regular ``cold fronts'', or contact discontinuities, in merging clusters showed that gas dynamic instabilities at the…

Astrophysics · Physics 2007-05-23 M. Markevitch , A. Vikhlinin , W. R. Forman

We present here \chandra observations of the rich cluster of galaxies A2256. In addition to the known cool subcluster, a new structure was resolved 2$'$ east of the peak of the main cluster. Its position is roughtly at the center of a…

Astrophysics · Physics 2009-11-06 M. Sun , S. S. Murray , M. Markevitch , A. Vikhlinin

We present new Chandra observations of Abell 2199 that show evidence of gas sloshing due to a minor merger, as well as impacts of the radio source, 3C 338, hosted by the central galaxy, NGC 6166, on the intracluster gas. The new data are…

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 use Chandra data to derive a detailed gas temperature map of the nearby, hot, merging galaxy cluster A754. Combined with the X-ray and optical images, the map reveals a more complex merger geometry than previously thought, possibly…

We present results from an analysis of a Chandra observation of the cluster of galaxies Abell 3581. We discover the presence of a point-source in the central dominant galaxy which is coincident with the core of the radio source PKS…

Astrophysics · Physics 2009-09-17 R. M. Johnstone , A. C. Fabian , R. G. Morris , G. B. Taylor

We present the evidence for the existence of substructure in the cold front cluster A2554 based on a 20.14 ks Chandra observation. Using centroid shift and X-ray brightness concentration parameters, we confirm that A2554 is a dynamically…

Cosmology and Nongalactic Astrophysics · Physics 2019-08-07 M. Kiyami Erdim , Murat Hudaverdi

We present a Chandra observation of the central (r< 200kpc) region of the cluster of galaxies 2A 0335+096, rich in interesting phenomena. On large scales (r> 40kpc), the X-ray surface brightness is symmetric and slightly elliptical. The…

Astrophysics · Physics 2009-11-07 Pasquale Mazzotta , Alastair Edge , Maxim Markevitch
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