English
Related papers

Related papers: Measuring Cluster Temperature Profiles with XMM/EP…

200 papers

Combining XMM-Newton and Chandra data, we have performed a detailed study of Abell 3558. Our analysis shows that its dynamical history is more complicated than previously thought. We have found some traits typical of cool core clusters…

Astrophysics · Physics 2009-11-11 M. Rossetti , S. Ghizzardi , S. Molendi , A. Finoguenov

We present here the results of a deep (130 ks) XMM-Newton observation of the cluster of galaxies 2A 0335+096. The deep exposure allows us to study in detail its temperature structure and its elemental abundances. We fit three different…

We present a new analysis of very deep Chandra observations of the galaxy cluster Abell 1795. Utilizing nearly 750 ks of net ACIS imaging, we are able to resolve the thermodynamic structure of the Intracluster Medium (ICM) on length scales…

Astrophysics of Galaxies · Physics 2015-06-22 S. Ehlert , M. McDonald , E. D. Miller , L. P. David , M. W. Bautz

We present a morphological study of 35 X-ray luminous galaxy clusters at 0.15<z<0.3, selected in a similar manner to the Local Cluster Substructure Survey (LoCuSS), for which deep XMM-Newton observations are available. We characterise the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Gayoung Chon , Hans Boehringer , Graham P. Smith

We present a new extended XMM-Newton mosaic of the nearby Coma cluster, which covers the cluster out to the virial radius with nearly complete azimuthal coverage. This large mosaic is combined with the Planck Sunyaev Zel'dovich effect…

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

X-ray data of the Centaurus cluster, obtained with {\it XMM-Newton} for 45 ksec, were analyzed. Deprojected EPIC spectra from concentric thin shell regions were reproduced equally well by a single-phase plasma emission model, or by a…

Cosmology and Nongalactic Astrophysics · Physics 2009-08-11 I. Takahashi , M. Kawaharada , K. Makishima , K. Matsushita , Y. Fukazawa , Y. Ikebe , T. Kitaguchi , M. Kokubun , K. Nakazawa , S. Okuyama , N. Ota , T. Tamura

The XMM Cluster Survey (XCS) is a serendipitous search for galaxy clusters using all publicly available data in the XMM-Newton Science Archive. Its main aims are to measure cosmological parameters and trace the evolution of X-ray scaling…

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

Thermodynamic profiles from X-ray and millimetre observations of galaxy clusters are often compared under the simplifying assumptions of smooth, spherically symmetric intracluster medium. These approximations lead to expected discrepancies…

In order to investigate the spatial distribution of the ICM temperature in galaxy clusters in a quantitative way and probe the physics behind, we analyze the X-ray spectra of a sample of 50 galaxy clusters, which were observed with the…

Cosmology and Nongalactic Astrophysics · Physics 2016-01-13 Zhenghao Zhu , Haiguang Xu , Jingying Wang , Junhua Gu , Weitian Li , Dan Hu , Chenhao Zhang , Liyi Gu , Tao An , Chengze Liu , Zhongli Zhang , Jie Zhu , Xiang-Ping Wu

We report on the XMM-Newton (XMM) observation of RXJ1053.7+5735, one of the most distant (z = 1.26) X-ray selected clusters of galaxies, which also shows an unusual double-lobed X-ray morphology, indicative of possible cluster-cluster…

We investigate the properties of the intracluster medium (ICM) that forms within N-body/hydrodynamical simulations of galaxy clusters in a \LambdaCDM cosmology. When radiative cooling and a simple model for galactic feedback are included,…

Astrophysics · Physics 2009-11-10 Scott T. Kay , Peter A. Thomas , Adrian Jenkins , Frazer R. Pearce

A sample consisting of 27 X-ray selected galaxy clusters from the XMM-LSS survey is used to study the evolution in the X-ray surface brightness profiles of the hot intracluster plasma. These systems are mostly groups and poor clusters, with…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Abdulmonem Alshino , Trevor Ponman , Florian Pacaud , Marguerite Pierre

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

The presence of dilute hot cavities in the intracluster medium (ICM) at the cores of clusters of galaxies changes the relation between gas temperature and its X-ray emission properties. Using the hydrostatic equations of a porous medium we…

Astrophysics · Physics 2009-11-13 Adi Nusser , Joe Silk

We present an analysis of 7 clusters observed by XMM as part of our survey of 17 most X-ray luminous clusters of galaxies at z=0.2 selected for a comprehensive and unbiased study of the mass distribution in massive clusters. Using public…

Astrophysics · Physics 2009-11-10 P. B. Marty , J. -P. Kneib , R. Sadat , S. Bardeau , O. Czoske , H. Ebeling , I. Smail

We present in this paper a substructure and spectroimaging study of the Coma cluster of galaxies based on XMM-Newton data. XMM-Newton performed a mosaic of observations of Coma to ensure a large coverage of the cluster. We add the different…

Astrophysics · Physics 2009-11-07 D. M. Neumann , D. H. Lumb , G. W. Pratt , U. G. Briel

We explore the cosmological constraints expected from wide area XMM-type cluster surveys covering 50-200 deg2, under realistic observing conditions. We perform a Fisher matrix analysis based on cluster number counts in combination with…

Cosmology and Nongalactic Astrophysics · Physics 2011-07-26 M. Pierre , F. Pacaud , J. B. Juin , J. B. Melin , N. Clerc , P. S. Corasaniti

Observations and numerical simulations have shown that the relation between the mass scaled with the critical density of the universe and the X-ray temperature of galaxy clusters is approximately represented by $M_\Delta \propto T_X^{3/2}$…

Astrophysics of Galaxies · Physics 2018-08-15 Yutaka Fujita , Keiichi Umetsu , Stefano Ettori , Elena Rasia , Nobuhiro Okabe , Massimo Meneghetti

Using a set of hydrodynamical simulations of 9 galaxy clusters with masses in the range 1.5 10^{14} M_sun < M_vir < 3.4 10^{15} M_sun, we have studied the density, temperature and X-ray surface brightness profiles of the intracluster medium…

Astrophysics · Physics 2009-11-11 M. Roncarelli , S. Ettori , K. Dolag , L. Moscardini , S. Borgani , G. Murante
‹ Prev 1 4 5 6 7 8 10 Next ›