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相关论文: A BeppoSAX observation of the merging cluster Abel…

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We present results from a BeppoSAX observation of the rich cluster Abell 2319. The broad band spectrum (2-50 keV) of the cluster can be adequately represented by an optically thin thermal emission model with a temperature of 9.6+/-0.3 keV…

天体物理学 · 物理学 2009-10-31 S. Molendi , S. De Grandi , R. Fusco-Femiano , S. Colafrancesco , F. Fiore , R. Nesci , F. Tamburelli

We present results from a spatially resolved spectral analysis of the merging cluster Abell 2256. The long integration time (135 ks) and the good spatial resolution of the MECS onboard BeppoSAX allow us to derive a new and substantially…

天体物理学 · 物理学 2009-10-31 Silvano Molendi , Sabrina De Grandi , Roberto Fusco-Femiano

We present results from a BeppoSAX observation of the cooling flow cluster Abell 2029. The broad band spectrum (2-35 keV) of the cluster, when fitted with a model including a cooling flow component and a one temperature thermal component,…

天体物理学 · 物理学 2007-05-23 Silvano Molendi , Sabrina De Grandi

We report new results on the cluster of galaxies Abell 970 obtained from X-ray observation with BeppoSAX. Our analysis of the BeppoSAX MECS and LECS data in the range [0.15-10] keV reveals a mean cluster gas temperature of kT =…

天体物理学 · 物理学 2009-11-07 G. B. Lima Neto , H. V. Capelato , L. Sodre , D. Proust

We study the temperature structure of the rich cluster of galaxies Abell 1367 using two independent methods of correcting for the ASCA PSF. The results of the two methods are in excellent agreement and give solid evidence of a strong and…

天体物理学 · 物理学 2007-05-23 R. Hank Donnelly , M. Markevitch , W. Forman , C. Jones , L. P. David , E. Churazov , M. Gilfanov

We present a mosaic of five XMM-Newton observations of the nearby ($z=0.0594$) merging galaxy cluster Abell 3266. We use the spectro-imaging capabilities of \xmm to build precise (projected) temperature, entropy, pressure and Fe abundance…

天体物理学 · 物理学 2009-11-11 Jean-Luc Sauvageot , Elena Belsole , Gabriel W. Pratt

We report the observation of the Intra-Cluster Medium (ICM) of Abell 85 by the X-ray satellite BeppoSAX. We have both analysed the spectrum obtained in the central 8 arcmin circular region centred on the Very Steep Spectrum Radio Source…

天体物理学 · 物理学 2009-11-06 G. B. Lima Neto , V. Pislar , J. Bagchi

We present a spatially resolved map of intracluster gas temperatures in the rich cluster Abell 2255, using ROSAT PSPC data. The intracluster gas is strongly non-isothermal and the temperature distribution supports the conclusions of Burns…

天体物理学 · 物理学 2009-10-30 David S. Davis , Raymond E. White

We present results from the analysis of a BeppoSAX observation of the Centaurus Cluster. The radial metal abundance profile shows evidence of a large enhancement in the core, where Ab $>$ 1 (sol. units). The temperature map indicates that…

天体物理学 · 物理学 2009-11-07 S. Molendi , S. De Grandi , M. Guainazzi

We present spectroscopy of 880 galaxies within a 2-degree field around the massive, merging cluster Abell 3266. This sample, which includes 704 new measurements, was combined with the existing redshifts measurements to generate a sample of…

星系天体物理 · 物理学 2017-05-03 Siamak Dehghan , Melanie Johnston-Hollitt , Matthew Colless , Rowan Miller

We report on a Chandra observation of the massive, medium redshift (z=0.1386) cooling flow cluster Abell 1068. We detect a clear temperature gradient in the X-ray emitting gas from kT ~ 5 keV in the outer part of the cluster down to roughly…

天体物理学 · 物理学 2009-11-10 Michael W. Wise , Brian R. McNamara , Steve S. Murray

We present BeppoSAX results of a spatially resolved spectral analysis of A3571, a relaxed nearby cluster of galaxies. In the central 2' (130/h_50 kpc) radius the metal abundance is 0.49 +- 0.08 solar and the absorption (1.13 +-0.28) x 10^21…

天体物理学 · 物理学 2009-11-06 J. Nevalainen , J. Kaastra , A. N. Parmar , M. Markevitch , T. Oosterbroek , S. Colafrancesco , P. Mazzotta

We present results from a BeppoSAX observation of the cooling flow cluster PKS 0745-191 (z=0.1028). By performing spatially resolved spectroscopy, we find that the projected temperature profile is consistent with being constant. We can rule…

天体物理学 · 物理学 2007-05-23 Sabrina De Grandi , Silvano Molendi

Abell 115 exhibits two distinct peaks in the surface brightness distribution. ASCA observation shows a significant temperature variation in this cluster, confirmed by a hardness ratio analysis and spectral fits. A linking region between…

天体物理学 · 物理学 2009-10-31 R. Shibata , H. Honda , M. Ishida , T. Ohashi , K. Yamashita

We have derived azimuthally-averaged radial temperature profiles of the X-ray gas contained within 11 clusters of galaxies with redshift z=0.03-0.2 with BeppoSAX. Each of the 11 clusters have had their radial temperature profiles previously…

天体物理学 · 物理学 2009-10-31 Jimmy A. Irwin , Joel N. Bregman

The results from Suzaku XIS observations of the relaxed cluster of galaxies Abell2052 are presented. Offset pointing data are used to estimate the Galactic foreground emission in the direction to the cluster. Significant soft X-ray excess…

Using ASCA data, we have measured the electron temperature in A2163 out to 1.5h^{-1} Mpc (10a_x) from the center, in three radial bins. The temperatures are 12.2+1.9-1.2 keV, 11.5+2.7-2.9 keV and 3.8+1.1-0.9 keV (90%) in the 0-3 a_x…

天体物理学 · 物理学 2009-10-28 M. Markevitch , R. Mushotzky , H. Inoue , K. Yamashita , A. Furuzawa , Y. Tawara

We use new ASCA observations and archival ROSAT Position Sensitive Proportional Counter (PSPC) data to determine the X-ray spectral properties of the intracluster gas in Abell 644. From the overall spectrum, we determine the average gas…

天体物理学 · 物理学 2009-10-31 F. E. Bauer , C. L. Sarazin

We present an analysis of a Chandra observation of Abell 2034. The cluster has multiple signatures of an ongoing merger, including a cold front and probable significant heating of the intracluster medium above its equilibrium temperature.…

天体物理学 · 物理学 2009-11-07 J. C. Kempner , C. L. Sarazin , M. Markevitch

We present X-ray observations of two high redshift clusters of galaxies carried out with the BeppoSAX satellite. One cluster, RXJ0152.7-1357 at z = 0.83, was selected from the ROSAT Deep Cluster Survey sample, as one of the most X-ray…

天体物理学 · 物理学 2007-05-23 R. Della Ceca , R. Scaramella , I. M. Gioia , P. Rosati , F. Fiore , G. Squires
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