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We present a $250\,$ks Chandra observation of the cluster merger A2034 with the aim of understanding the nature of a sharp edge previously characterized as a cold front. The new data reveal that the edge is coherent over a larger opening…

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 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 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 Chandra observation of the merging cluster of galaxies Abell 2744. The cluster shows strong evidence for an ongoing major merger which we believe to be responsible for the radio halo. X-ray emission and temperature maps of the…

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

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 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

This paper presents a sample of "cold front" clusters selected from the Chandra archive. The clusters are selected based purely on the existence of surface brightness edges in their Chandra images which are modeled as density jumps. A…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Matt S. Owers , Paul E. J. Nulsen , Warrick J. Couch , Maxim Markevitch

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 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 the massive, nearby galaxy cluster Abell 2319. A sharp surface brightness discontinuity--suggested by previous, lower angular resolution X-ray imaging--is clearly visible in the ACIS image.…

Astrophysics · Physics 2009-11-10 Timothy B. O'Hara , Joseph J. Mohr , Martin A Guerrero

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 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 2007-05-23 Joshua C. Kempner , Laurence P. David

We present the results of deep Chandra and XMM-Newton observations of a complex merging galaxy cluster Abell 2256 (A2256) that hosts a spectacular radio relic (RR). The temperature and metallicity maps show clear evidence of a merger…

By analysing the Chandra and XMM-Newton archived data of the nearby galaxy cluster Abell 3158, which was reported to possess a relatively regular, relaxed morphology in the X-ray band in previous works, we identify a bow edge-shaped…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Yu Wang , Haiguang Xu , Liyi Gu , Junhua Gu , Zhenzhen Qin , Jingying Wang , Zhongli Zhang , Xiang-Ping Wu

We present Chandra X-ray observations of the dynamically complex galaxy cluster Abell 119 ($z = 0.044$). A119 is host to two NAT radio sources (0053-015 & 0053-016) whose tails are oriented parallel to each other despite orthogonally…

We have used a 50.4 ksec Chandra obsffervation to examine the galaxy cluster Abell 115 (z=0.1971). The X-ray surface brightness distribution shows a merger of 2 sub-clusters with substantial off-axis motion. The northern sub-cluster moves…

Astrophysics · Physics 2009-11-10 K. Gutierrez , H. Krawczynski

We have obtained high spatial resolution temperature and abundance profiles for the galaxy cluster Abell 2029 with the Chandra ACIS-S instrument. Our observations reveal that the spectra are well-fit by a single-phase gas in each annulus.…

Astrophysics · Physics 2009-11-07 Aaron D. Lewis , John T. Stocke , David A. Buote

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…

We present an analysis of the Chandra X-ray observation of Abell 2052, including large scale properties of the cluster as well as the central region which includes the bright radio source, 3C 317. We present temperature and abundance…

Astrophysics · Physics 2011-07-18 Elizabeth L. Blanton , Craig L. Sarazin , Brian R. McNamara
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