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Related papers: Temperature Structure in Abell 1367

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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 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 present VLA H I imaging data for a field in the NW of the galaxy cluster Abell 1367 (z = 0.02) in an attempt to probe the effect environment has on the interstellar medium of late-type spiral galaxies. Several galaxies show pronounced…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 T. C. Scott , H. Bravo-Alfaro , E. Brinks , C. A. Caretta , L. Cortese , A. Boselli , M. J. Hardcastle , J. H. Croston , I. Plauchu

We present a detailed X-ray study of the central subcluster of the nearby ($z$ $\sim$0.0368) Hercules cluster (Abell 2151) identified as A2151C that shows a bimodal structure. A bright clump of hot gas with X-ray emission extending to…

Astrophysics of Galaxies · Physics 2020-12-02 Juhi Tiwari , Kulinder Pal Singh

We use XMM-Newton data of the merging cluster Abell 3667 to analyze its metallicity distribution. A detailed abundance map of the central 1.1x1.1 Mpc region indicates that metals are inhomogeneously distributed in the cluster showing a…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 L. Lovisari , W. Kapferer , S. Schindler , C. Ferrari

We present the results of deep 140 ks Suzaku X-ray observations of the north-east (NE) radio relic of the merging galaxy cluster Abell2255. The temperature structure of Abell2255 is measured out to 0.9 times the virial radius (1.9 Mpc) in…

The results of Suzaku observations of the outskirts of Abell 3395 including a large-scale structure filament toward Abell 3391 are presented. We measured temperature and abundance distributions from the southern outskirt of Abell 3395 to…

Cosmology and Nongalactic Astrophysics · Physics 2017-12-20 Yuuki Sugawara , Motokazu Takizawa , Madoka Itahana , Hiroki Akamatsu , Yutaka Fujita , Takaya Ohashi , Yoshitaka Ishisaki

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 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 high-resolution X-ray spectroscopy of the merging galaxy cluster Abell 3667 with \textit{XRISM}/Resolve. Two observations, targeting the cluster X-ray core and the prototypical cold front, were performed with exposures of 105 ks…

We present {\em ASCA} results of the pair clusters A399 and A401. The region between the two clusters exhibits excess X-rays over the value expected with a simple superposition of the two clusters. We see, however, no temperature rise at…

Astrophysics · Physics 2015-06-24 Y. Fujita , K. Koyama , T. Tsuru , H. Matsumoto

(Abstract abridged) The Abell 222 and 223 clusters are located at an average redshift z ~ 0.21 and are separated by 0.26 deg. Signatures of mergers have been previously found in these clusters, both in X-rays and at opticalwavelengths, thus…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 F. Durret , T. F. Laganá , C. Adami , E. Bertin

Recent work based on a global measurement of the ICM properties find evidence for an increase of the iron abundance in galaxy clusters with temperature around 2-4 keV up to a value about 3 times larger than that typical of very hot…

Cosmology and Nongalactic Astrophysics · Physics 2010-10-29 F. Gastaldello , S. Ettori , I. Balestra , F. Brighenti , D. A. Buote , S. De Grandi , S. Ghizzardi , M. Gitti , P. Tozzi

Abell 3571 is a nearby, X-ray bright galaxy cluster located in the Shapley Supercluster. Although it appears morphologically relaxed in X-ray images, multiwavelength observations reveal subtle indications of residual dynamical activity,…

High Energy Astrophysical Phenomena · Physics 2026-03-11 X. Zheng , H. Yu , S. Jia , C. Li , X. Hou , A. Liu , Y. Chen , H. Feng , L. Song , C. Liu , F. Lu , S. Zhang , W. Yuan , J. Sanders , J. Wang , K. Nandra , W. Cui , J. Guan , D. Han , C. Jin , Y. Liu , J. Xu , J. Zhang , H. Zhao , X. Zhao

The Abell cluster of galaxies A3667 was observed with XMM-Newton in 6 partially overlapping pointings. We present here the resulting X-ray surface brightness, temperature, entropy and pressure maps and discuss the structure of this cluster…

Astrophysics · Physics 2009-11-10 Ulrich G. Briel , Alexis Finoguenov , J. Patrick Henry

(Abridged) The galaxy cluster Abell 2218, at z=0.171, is well-known for the discrepancy between mass estimates derived from X-ray and strong lensing analyses. With the present XMM observation, we trace the gas density and temperature…

Astrophysics · Physics 2009-11-10 G. W. Pratt , H. Boehringer , A. Finoguenov

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

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 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…

[abridged] We present the analysis of the X-ray brightness and temperature profiles for six clusters belonging to both the Cool Core and Non Cool Core classes, in terms of the Supermodel (SM) developed by Cavaliere, Lapi & Fusco-Femiano…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 R. Fusco-Femiano , A. Cavaliere , A. Lapi