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We present results from a large mosaic of Suzaku observations of the Coma Cluster, the nearest and X-ray brightest hot, dynamically active, non-cool core system, focusing on the thermodynamic properties of the ICM on large scales. For…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 A. Simionescu , N. Werner , O. Urban , S. W. Allen , A. C. Fabian , A. Mantz , K. Matsushita , P. E. J. Nulsen , J. S. Sanders , T. Sasaki , T. Sato , Y. Takei , S. A. Walker

We present the joint analysis of the X-ray and SZ signals in A2319, the galaxy cluster with the highest signal-to-noise ratio in Planck maps and that has been surveyed within our XMM Cluster Outskirts Project (X-COP). We recover the…

Cosmology and Nongalactic Astrophysics · Physics 2018-06-06 V. Ghirardini , S. Ettori , D. Eckert , S. Molendi , F. Gastaldello , E. Pointecouteau , G. Hurier , H. Bourdin

Context. Galaxy clusters are continuously growing through the accretion of matter in their outskirts. This process induces inhomogeneities in the gas density distribution (clumping) which need to be taken into account to recover the…

Cosmology and Nongalactic Astrophysics · Physics 2016-10-26 C. Tchernin , D. Eckert , S. Ettori , E. Pointecouteau , S. Paltani , S. Molendi , G. Hurier , F. Gastaldello , E. T. Lau , D. Nagai , M. Roncarelli , M. Rossetti

We present a joint Suzaku and XMM-Newton analysis of the outskirts of the nearby galaxy cluster Abell 2199, the only nearby galaxy cluster to be observed with near complete azimuthal coverage with Suzaku. Using the XMM-Newton observations…

Cosmology and Nongalactic Astrophysics · Physics 2020-08-05 M. S. Mirakhor , S. A. Walker

We present results on the spectroscopic analysis of XMM-Newton EPIC data of the central 0.5/h_50 Mpc regions of the clusters of galaxies Coma, A1795 and A3112. The temperature of the hot intracluster gas as determined by modeling the 2 - 7…

Astrophysics · Physics 2009-11-07 J. Nevalainen , R. Lieu , M. Bonamente , D. Lumb

We present the results from extensive, new observations of the Perseus Cluster of galaxies, obtained as a Suzaku Key Project. The 85 pointings analyzed span eight azimuthal directions out to 2 degrees = 2.6 Mpc, to and beyond the virial…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 O. Urban , A. Simionescu , N. Werner , S. W. Allen , S. Ehlert , I. Zhuravleva , R. G. Morris , A. C. Fabian , A. Mantz , P. E. J. Nulsen , J. S. Sanders , Y. Takei

Spatially-resolved gas pressure maps of the Coma galaxy cluster are obtained from a mosaic of XMM-Newton observations in the scale range between a resolution of 20 kpc and an extent of 2.8 Mpc. A Fourier analysis of the data reveals the…

Astrophysics · Physics 2009-11-10 P. Schuecker , A. Finoguenov , F. Miniati , H. Boehringer , U. G. Briel

We present joint South Pole Telescope (SPT) and XMM-Newton observations of 8 massive galaxy clusters (0.8--1.7$\times$10$^{15}$ M$_{\odot}$) spanning a redshift range of 0.16 to 0.35. Employing a novel SZ+X-ray fitting technique, we…

We present an analysis of Planck satellite data on the Coma Cluster observed via the Sunyaev-Zeldovich effect. Planck is able, for the first time, to detect SZ emission up to r ~ 3 X R_500. We test previously proposed models for the…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-20 Planck Collaboration , P. A. R. Ade , N. Aghanim , M. Arnaud , M. Ashdown , F. Atrio-Barandela , J. Aumont , C. Baccigalupi , A. Balbi , A. J. Banday , R. B. Barreiro , J. G. Bartlett , E. Battaner , K. Benabed , A. Benoît , J. -P. Bernard , M. Bersanelli , I. Bikmaev , H. Böhringer , A. Bonaldi , J. R. Bond , J. Borrill , F. R. Bouchet , H. Bourdin , M. L. Brown , S. D. Brown , R. Burenin , C. Burigana , P. Cabella , J. -F. Cardoso , P. Carvalho , A. Catalano , L. Cayón , L. -Y Chiang , G. Chon , P. R. Christensen , E. Churazov , D. L. Clements , S. Colafrancesco , L. P. L. Colombo , A. Coulais , B. P. Crill , F. Cuttaia , A. Da Silva , H. Dahle , L. Danese , R. J. Davis , P. de Bernardis , G. de Gasperis , A. de Rosa , G. de Zotti , J. Delabrouille , J. Démoclès , F. -X. Désert , C. Dickinson , J. M. Diego , K. Dolag , H. Dole , S. Donzelli , O. Doré , U. Dörl , M. Douspis , X. Dupac , T. A. Enßlin , H. K. Eriksen , F. Finelli , I. Flores-Cacho , O. Forni , M. Frailis , E. Franceschi , M. Frommert , S. Galeotta , K. Ganga , R. T. Génova-Santos , M. Giard , M. Gilfanov , J. González-Nuevo , K. M. Górski , A. Gregorio , A. Gruppuso , F. K. Hansen , D. Harrison , S. Henrot-Versillé , C. Hernández-Monteagudo , S. R. Hildebrandt , E. Hivon , M. Hobson , W. A. Holmes , A. Hornstrup , W. Hovest , K. M. Huffenberger , G. Hurier , T. R. Jaffe , T. Jagemann , W. C. Jones , M. Juvela , E. Keihänen , I. Khamitov , R. Kneissl , J. Knoche , L. Knox , M. Kunz , H. Kurki-Suonio , G. Lagache , A. Lähteenmäki , J. -M. Lamarre , A. Lasenby , C. R. Lawrence , M. Le Jeune , R. Leonardi , P. B. Lilje , M. Linden-Vørnle , M. López-Caniego , P. M. Lubin , J. F. Macías-Pérez , B. Maffei , D. Maino , N. Mandolesi , M. Maris , F. Marleau , E. Martínez-González , S. Masi , M. Massardi , S. Matarrese , F. Matthai , P. Mazzotta , S. Mei , A. Melchiorri , J. -B. Melin , L. Mendes , A. Mennella , S. Mitra , M. -A. Miville-Deschênes , A. Moneti , L. Montier , G. Morgante , D. Munshi , J. A. Murphy , P. Naselsky , P. Natoli , H. U. Nørgaard-Nielsen , F. Noviello , D. Novikov , I. Novikov , S. Osborne , F. Pajot , D. Paoletti , O. Perdereau , F. Perrotta , F. Piacentini , M. Piat , E. Pierpaoli , R. Piffaretti , S. Plaszczynski , E. Pointecouteau , G. Polenta , N. Ponthieu , L. Popa , T. Poutanen , G. W. Pratt , S. Prunet , J. -L. Puget , J. P. Rachen , R. Rebolo , M. Reinecke , M. Remazeilles , C. Renault , S. Ricciardi , T. Riller , I. Ristorcelli , G. Rocha , M. Roman , C. Rosset , M. Rossetti , J. A. Rubiño-Martín , L. Rudnick , B. Rusholme , M. Sandri , G. Savini , B. M. Schaefer , D. Scott , G. F. Smoot , F. Stivoli , R. Sudiwala , R. Sunyaev , D. Sutton , A. -S. Suur-Uski , J. -F. Sygnet , J. A. Tauber , L. Terenzi , L. Toffolatti , M. Tomasi , M. Tristram , J. Tuovinen , M. Türler , G. Umana , L. Valenziano , B. Van Tent , J. Varis , P. Vielva , F. Villa , N. Vittorio , L. A. Wade , B. D. Wandelt , N. Welikala , S. D. M. White , D. Yvon , A. Zacchei , S. Zaroubi , A. Zonca

We present results of X-ray observations of the Coma cluster with multiple instruments over a broad energy band. Using the data from INTEGRAL, RXTE and ROSAT observatories, we find that the Coma spectrum in the 0.5-107 keV energy band can…

Astrophysics · Physics 2009-11-13 A. A. Lutovinov , A. Vikhlinin , E. M. Churazov , M. G. Revnivtsev , R. A. Sunyaev

The relaxed galaxy cluster Zwicky 3146 is analyzed via the SuperModel, a tool already tested on many clusters since 2009. In particular, this analysis is focused on the intracluster medium X-ray temperature data measured by XMM-Newton up to…

Cosmology and Nongalactic Astrophysics · Physics 2020-03-25 Roberto Fusco-Femiano

We present results from Suzaku Key Project observations of the Virgo Cluster, the nearest galaxy cluster to us, mapping its X-ray properties along four long `arms' extending beyond the virial radius. The entropy profiles along all four…

Cosmology and Nongalactic Astrophysics · Physics 2017-05-31 A. Simionescu , N. Werner , A. Mantz , S. W. Allen , O. Urban

The thermodynamic properties of the intracluster medium (ICM) at the outskirts of galaxy clusters provide valuable insights into the growth of the dark matter halo and the heating of the ICM. Considering the results of the soft X-ray…

The Planck collaboration has recently published precise and resolved measurements of the Sunyaev-Zel'dovich effect in Abell 1656 (the Coma cluster of galaxies), so directly gauging the electron pressure profile in the intracluster plasma.…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 R. Fusco-Femiano , A. Lapi , A. Cavaliere

XMM-Newton observations of the outskirts of the Coma cluster of galaxies confirm the existence of a soft X-ray excess claimed previously and show it comes from warm thermal emission. Our data provide a robust estimate of its temperature…

Astrophysics · Physics 2009-11-10 A. Finoguenov , U. G. Briel , J. P. Henry

The outskirts of galaxy clusters, near the virial radius, remain relatively unexplored territory and yet are vital to our understanding of cluster growth, structure, and mass. In this presentation, we show the first results from a program…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Eric D. Miller , Marshall Bautz , Jithin George , Richard Mushotzky , David Davis , J. Patrick Henry

Several physical processes and formation events are expected in cluster outskirts, a vast region up to now essentially not covered by observations. The recent Suzaku (X-ray) and Planck (Sunayev-Zeldovich effect) observations out to the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-18 R. Fusco-Femiano , A. Lapi

The study of galaxy cluster outskirts has emerged as one of the new frontiers in extragalactic astrophysics and cosmology with the advent of new observations in X-ray and microwave. However, the thermodynamic properties and chemical…

Cosmology and Nongalactic Astrophysics · Physics 2014-10-24 Camille Avestruz , Erwin T. Lau , Daisuke Nagai , Alexey Vikhlinin

We measure the thermodynamic properties of cluster outer regions to provide constraints on the processes that rule the formation of large scale structures. We derived the thermodynamic properties of the intracluster gas (temperature,…

Cosmology and Nongalactic Astrophysics · Physics 2015-10-08 Dominique Eckert , Silvano Molendi , Franco Vazza , Stefano Ettori , Stéphane Paltani

Galaxy clusters are thought to grow hierarchically through the continuous merging and accretion of smaller structures across cosmic time. In the local Universe, these phenomena are still active in the outer regions of massive clusters…

Cosmology and Nongalactic Astrophysics · Physics 2017-05-10 D. Eckert , S. Ettori , E. Pointecouteau , S. Molendi , S. Paltani , C. Tchernin
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