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Related papers: Chandra Analysis of Abell 496

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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…

The galaxy cluster Abell 496 has been extensively studied in the past for the clear sloshing motion of the hot gas on large scales, but the interplay between the central radio galaxy and the surrounding cluster atmosphere is mostly…

We report the discovery of a 40 arcsec long X-ray filament in the core of the cluster of galaxies A1795. The feature coincides with an Halpha+NII filament found by Cowie et al in the early 1980s and resolved into at least 2 U-band filaments…

We have assembled a sample of 115 galaxy clusters at 0.1<z<1.3 with archived Chandra ACIS-I observations. We present X-ray images of the clusters and make available region files containing contours of the smoothed X-ray emission. The…

Astrophysics · Physics 2009-11-13 B. J. Maughan , C. Jones , W. Forman , L. Van Speybroeck

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 an analysis of Chandra observations of the central regions of the cooling flow cluster Abell 2029. We find a number of X-ray filaments in the central 40 kpc, some of which appear to be associated with the currently active central…

Astrophysics · Physics 2009-11-10 Tracy E. Clarke , Elizabeth L. Blanton , Craig L. Sarazin

We present a Chandra observation of Abell 2052, a cooling flow cluster with a central cD that hosts the complex radio source 3C 317. The data reveal ``holes'' in the X-ray emission that are coincident with the radio lobes. The holes are…

Astrophysics · Physics 2009-11-06 Elizabeth L. Blanton , Craig L. Sarazin , Brian R. McNamara , Michael W. Wise

We present new, deep (245 ks) Chandra observations of the galaxy cluster Abell 1664 ($z = 0.1283$). These images reveal rich structure, including elongation and accompanying compressions of the X-ray isophotes in the NE-SW direction,…

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 results from an analysis of two Chandra observations of the rich, nearby galaxy cluster Abell 2199. We find evidence (having corrected for projection effects) for radial gradients in temperature and metallicity in the X-ray…

Astrophysics · Physics 2009-09-17 R. M. Johnstone , S. W. Allen , A. C. Fabian , J. S. Sanders

We present the analysis of 30 ksec of Chandra observations of the galaxy cluster Abell 1835. Overall, the X-ray image shows a relaxed morphology, although we detect substructure in in the inner 30 kpc radius. Spectral analysis shows a steep…

Astrophysics · Physics 2009-09-17 R. W. Schmidt , S. W. Allen , A. C. Fabian

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 an analysis of a 72 ks Chandra observation of the double cluster Abell 1644 (z=0.047). The X-ray temperatures indicate the masses are M500=2.6+/-0.4 x10^{14} h^{-1} M_sun for the northern subcluster and M500=3.1+/-0.4 x10^{14}…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Ryan E. Johnson , Maxim Markevitch , Gary A. Wegner , Christine Jones , William R. Forman

We present results based on the systematic analysis of \textit{Chandra} archive data on the X-ray bright Abell Richness class-I type cluster Abell 1991 with an objective to investigate properties of the X-ray cavities hosted by this system.…

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

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 present preliminary Chandra results on z=0.2 clusters A665, A2163 and A2218, and a z=0.05 cluster A754. For A754, A665 and A2163, we have derived first high-resolution projected gas temperature maps. All three show strong spatial…

Astrophysics · Physics 2007-05-23 M. Markevitch , A. Vikhlinin , P. Mazzotta , L. VanSpeybroeck

We have determined elemental abundance ratios in the core of the Perseus cluster for several elements. These ratios indicate a central dominance of SN Ia ejecta similar to that found for A496, A2199 and A3571 (Dupke & White 2000).…

Astrophysics · Physics 2009-10-31 Renato A. Dupke , Keith A. Arnaud

We present an analysis of a Chandra ACIS-I observation of the massive galaxy cluster A644. This cluster was previously classified as a cooling flow, but no radio emission has been detected from its cD galaxy. Outside the core (R ~75 kpc…

Astrophysics · Physics 2009-11-11 David A. Buote , Philip J. Humphrey , John T. Stocke

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

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