English
Related papers

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

200 papers

Our XMM-Newton observations of Abell 85 confirm the extended 4 Mpc filament first detected with ROSAT, which has an X-ray temperature of about 2 keV and is probably made of groups falling on to the cluster. A comparison of the temperature…

Astrophysics · Physics 2009-11-10 Florence Durret , Gastao B. Lima Neto , William Forman

Theoretical studies of the physical processes guiding the formation and evolution of galaxies and galaxy clusters in the X-ray are mainly based on the results of numerical hydrodynamical N-body simulations, which in turn are often directly…

Astrophysics · Physics 2015-06-24 P. Mazzotta , E. Rasia , L. Moscardini , G. Tormen

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

We present the first comparison between properties of clusters of galaxies detected by the eROSITA Final Equatorial-Depth Survey (eFEDS) and the XMM Cluster Survey (XCS). We have compared, in an ensemble fashion, properties from the eFEDS…

Cosmology and Nongalactic Astrophysics · Physics 2022-09-14 D. J. Turner , P. A. Giles , A. K. Romer , R. Wilkinson , E. W. Upsdell , M. Klein , P. T. P. Viana , M. Hilton , S. Bhargava , C. A. Collins , R. G. Mann , M. Sahlén , J. P. Stott

Analyses of cosmological hydrodynamic simulations of galaxy clusters suggest that X-ray masses can be underestimated by 10% to 30%. The largest bias originates by both violation of hydrostatic equilibrium and an additional temperature bias…

The search for diffuse non-thermal inverse Compton (IC) emission from galaxy clusters at hard X-ray energies has been undertaken with many instruments, with most detections being either of low significance or controversial. Background and…

We propose a method to map the temperature distribution of the hot gas in galaxy clusters that uses resolved images of the thermal Sunyaev-Zel'dovich (tSZ) effect in combination with X-ray data. Application to images from the New IRAM KIDs…

We present a spatially-resolved analysis of the temperature and gas density profiles of galaxy clusters at z=0.4-0.7 observed with XMM-Newton. These data are used to derive the total cluster mass within the radius r_500 without assuming…

Astrophysics · Physics 2009-11-11 O. Kotov , A. Vikhlinin

We explore the band dependence of the inferred X-ray temperature of the intracluster medium (ICM) for 192 well-observed galaxy clusters selected from the Chandra Data Archive. If the hot ICM is nearly isothermal in the projected region of…

Astrophysics · Physics 2009-11-13 Kenneth W. Cavagnolo , Megan Donahue , G. Mark Voit , Ming Sun

We present the XMM-Newton temperature profiles of 12 bright clusters of galaxies at 0.4<z<0.9, with 5<kT<11 keV. The normalized temperature profiles (normalized by the mean temperature T500) are found to be generally self-similar. The…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Alessandro Baldi , Stefano Ettori , Silvano Molendi , Fabio Gastaldello

Precision cosmology studies based on wide-field surveys of galaxy clusters benefit from constraints on intrinsic scatter in mass-observable relationships. In principle, two-parameter models combining direct measurements of galaxy cluster…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 D. A. Ventimiglia , G. M. Voit , E. Rasia

The formation and evolution of clusters of galaxies are sensitive to the underlying cosmological model. Constraints on cosmological parameters of cold dark matter models have been derived from mass, temperature and luminosity functions of…

Astrophysics · Physics 2007-05-23 S. M. Molnar , K. Jahoda

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

We present the first results of our study of a sample of 101 X-ray galaxy groups and clusters, which is volume-limited in each of three X-ray luminosity bins. The aim of this work is to study the properties of the innermost ICM in the cores…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-18 Electra Panagoulia , Andy Fabian , Jeremy Sanders

We report on a 20 ksec XMM observation of the distant cluster RXJ1120.1+4318, discovered at z=0.6 in the SHARC survey. The cluster has a regular spherical morphology, suggesting it is in a relaxed state. The combined fit of the EPIC/MOS&pn…

We present the results of an XMM-Newton observation of the young (~2-4 Myr) cluster around the hot star sigma Orionis. In a previous paper we presented the analysis of the RGS spectrum of the central hot star; here we discuss the results of…

Astrophysics · Physics 2009-11-11 E. Franciosini , R. Pallavicini , J. Sanz-Forcada

(Abridged) X-ray clusters are conventionally divided into two classes: "cool core" (CC) clusters and "non-cool core" (NCC) clusters. Yet relatively little attention has been given to the origins of this dichotomy and, in particular, to the…

Astrophysics · Physics 2009-11-13 Ian G. McCarthy , Arif Babul , Richard G. Bower , Michael L. Balogh

We present the XMM-LSS cluster catalogue corresponding to the CFHTLS D1 area. The list contains 13 spectroscopically confirmed, X-ray selected galaxy clusters over 0.8 deg2 to a redshift of unity and so constitutes the highest density…

The X-ray spectrum of the Coma galaxy cluster was studied using the data from the XMM-Newton observatory. We combined 7 observations performed with the MOS camera of XMM-Newton in the 40'x 40' region centered at the Coma cluster. The…

Cosmology and Nongalactic Astrophysics · Physics 2023-11-16 L. Zadorozhna , A. Tugay , O. Prikhodko , D. Malyshev , Y. Sahai , D. Savchenko , N. Pulatova

We present new X-ray temperatures and improved X-ray luminosity estimates for 15 new and archival XMM-Newton observations of galaxy clusters at intermediate redshift with mass and luminosities near the galaxy group/cluster division (M2500 <…

Cosmology and Nongalactic Astrophysics · Physics 2014-09-25 Thomas Connor , Megan Donahue , Ming Sun , Henk Hoekstra , Andisheh Mahdavi , Christopher J. Conselice , Brian McNamara