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Related papers: Abell 2142 at large scales: An extreme case for sl…

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Previous studies of the massive nearby galaxy cluster Abell 3558 reported a cold front around the cluster core, which is attributed to the sloshing of the core as it responds to the gravitational disturbance created by a past minor merger.…

Cosmology and Nongalactic Astrophysics · Physics 2023-09-01 M. S. Mirakhor , S. A. Walker , M. Sundquist , D. Chandra

Radio observations of a few cool-core galaxy clusters have revealed the presence of diffuse emission on cluster scales, similar to what was found in merging clusters in the form of radio halos. These sources might suggest that a minor…

We present radio and X-ray studies of A3444 and MS1455.0+2232, two galaxy clusters with radio minihalos in their cool cores. A3444 is imaged using the Giant Metrewave Radio Telescope (GMRT) at 333, 607 and 1300 MHz and the Very Large Array…

High Energy Astrophysical Phenomena · Physics 2023-12-06 Simona Giacintucci , Tiziana Venturi , Maxim Markevitch , Gianfranco Brunetti , Tracy Clarke , Ruta Kale

Spiral structures and cold fronts in X-rays are frequently observed in cool core galaxy clusters. However, studies on radio mini-haloes associated with such spirals and their physical connections are rare. Here, we present the detection of…

Astrophysics of Galaxies · Physics 2024-06-21 S. K. Kadam , Sameer Salunkhe , N. D. Vagshette , Surajit Paul , Satish S. Sonkamble , P. K. Pawar , M. K. Patil

Recent X-ray observations of galaxy clusters have shown that there is substructure present in the intracluster medium (ICM), even in clusters that are seemingly relaxed. This substructure is sometimes a result of sloshing of the ICM, which…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Rachel Paterno-Mahler , Elizabeth L. Blanton , Scott W. Randall , Tracy E. Clarke

We present results from very deep (485 ks) Chandra X-ray observations of the relaxed, cool core cluster Abell 2029 (z = 0.0767). A2029 hosts one of the longest, most continuous sloshing spirals ever observed, which we find extends nearly…

High Energy Astrophysical Phenomena · Physics 2025-11-19 Courtney B. Watson , Elizabeth L. Blanton , Scott W. Randall , Tracy E. Clarke , John A. ZuHone

Clusters of galaxies are turbulent environments, whether merging systems with a turbulent intracluster medium (ICM) or relaxed systems sloshing within the potential well. In many such clusters, diffuse radio sources associated with the ICM…

Cosmology and Nongalactic Astrophysics · Physics 2024-05-29 C. J. Riseley , A. Bonafede , L. Bruno , A. Botteon , M. Rossetti , N. Biava , E. Bonnassieux , F. Loi , T. Vernstrom , M. Balboni

We present a detailed analysis of sloshing cold fronts in a sample of three nearby galaxy clusters (Abell 496, Abell 2029, and Abell 1644) observed with the Chandra X-ray Observatory. Cold fronts manifest as sharp edges in the X-ray surface…

Cosmology and Nongalactic Astrophysics · Physics 2026-01-22 I-Hsuan Li , Shutaro Ueda , I-Non Chiu , Keiichi Umetsu

We analyzed 200 ks of Chandra ACIS observations of the merging galaxy cluster A2142 to examine its prominent cold fronts in detail. We find that the southern cold front exhibits well-developed Kelvin-Helmholtz (KH) eddies seen in the sky…

High Energy Astrophysical Phenomena · Physics 2018-11-22 Qian Wang , Maxim Markevitch

We search the cool core galaxy clusters in the REXCESS sample for evidence of large scale gas sloshing, and find clear evidence for sloshing in RXJ2014.8-2430, the strongest cool core cluster in the REXCESS cluster sample. The residuals of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-18 S. A. Walker , A. C. Fabian , J. S. Sanders

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…

Off-axis collisions between galaxy clusters may induce the phenomenon of sloshing, causing dense gas to be dragged from the cool core of a cluster, resulting in a spiral of enhanced X-ray emission. Abell 2199 displays signatures of sloshing…

We present first results from a very deep (~650 ksec) Chandra X-ray observation of Abell 2052, as well as archival VLA radio observations. The data reveal detailed structure in the inner parts of the cluster, including bubbles evacuated by…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 E. L. Blanton , S. W. Randall , T. E. Clarke , C. L. Sarazin , B. R. McNamara , E. M. Douglass , M. McDonald

We present the results of deep Chandra, XMM-Newton and Suzaku observations of the nearby galaxy cluster Abell 85, which is currently undergoing at least two mergers, and in addition shows evidence for gas sloshing which extends out to r ~…

High Energy Astrophysical Phenomena · Physics 2015-06-23 Y. Ichinohe , N. Werner , A. Simionescu , S. W. Allen , R. E. A. Canning , S. Ehlert , F. Mernier , T. Takahashi

We present the first X-ray dedicated study of the galaxy cluster A795 and of the Fanaroff-Riley Type 0 hosted in its brightest cluster galaxy. Using an archival 30 ks \textit{Chandra} observation we study the dynamical state and cooling…

Astrophysics of Galaxies · Physics 2021-03-31 Francesco Ubertosi , Myriam Gitti , Eleonora Torresi , Fabrizio Brighenti , Paola Grandi

We present evidence for the existence of substructure in the "relaxed appearing" cold front clusters Abell 2142 and RXJ1720.1+2638. The detection of these substructures was made possible by comprehensive multi-object optical spectroscopy…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Matt S. Owers , Paul E. J. Nulsen , Warrick J. Couch

We investigate the origin and nature of the multiple sloshing cold fronts in the core of Abell 496 by direct comparison between observations and dedicated hydrodynamical simulations. Our simulations model a minor merger with a…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 E. Roediger , L. Lovisari , R. Dupke , S. Ghizzardi , M. Brüggen , R. P. Kraft , M. E. Machacek

We present a multiwavelength analysis of the galaxy cluster Abell 795 (z=0.1374), known for its extended (200 kpc) radio emission with a steep spectral index of unclear origin surrounding the brightest cluster galaxy (BCG), and for sloshing…

Astrophysics of Galaxies · Physics 2025-04-24 N. Rotella , F. Ubertosi , M. Gitti , M. Rossetti , F. Gastaldello , G. W. Pratt , F. Brighenti , E. Torresi , P. Grandi

This paper presents properties of the intracluster medium (ICM) in the environment of a cool core cluster Abell 2566 (redshift $z$ = 0.08247) based on the analysis of 20 ks Chandra X-ray data. 2D imaging analysis of the Chandra data from…

High Energy Astrophysical Phenomena · Physics 2024-06-24 S. K. Kadam , Satish S. Sonkamble , N. D. Vagshette , M. K. Patil

We present the results of deep Chandra and XMM-Newton X-ray imaging and spatially-resolved spectroscopy of Abell 2256, a nearby (z=0.058) galaxy cluster experiencing multiple mergers and displaying a rich radio morphology dominated by a…

High Energy Astrophysical Phenomena · Physics 2020-06-10 J. P. Breuer , N. Werner , F. Mernier , T. Mroczkowski , A. Simionescu , T. E. Clarke , J. A. ZuHone , L. Di Mascolo
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