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相关论文: The soft X-ray background with Suzaku II: Supervir…

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The X-ray spectrum of the nearest ultraluminous X-ray source, M33 X-8, obtained by Suzaku during 2010 January 11 -- 13, was closely analyzed to examine its nature. It is, by far, the only data with the highest signal statistic in 0.4 -- 10…

高能天体物理现象 · 物理学 2015-06-05 Naoki Isobe , Aya Kubota , Hiroshi Sato , Tsunefumi Mizuno

We have analyzed an XMM-Newton observation of the nearby spiral galaxy NGC 1313, which contains two "ultra-luminous" X-ray (ULX) sources. We measure isotropic luminosities of L_X = 2.0 * 10^(40) erg/s and L_X = 6.6 * 10^(39) erg/s for NGC…

天体物理学 · 物理学 2009-11-07 J. M. Miller , G. Fabbiano , M. C. Miller , A. C. Fabian

We present the results of a Suzaku study of a bright point-like source in the 6.7 keV intensity map of the Galactic center region. We detected an intense FeXXV 6.7 keV line with an equivalent width of ~1 keV as well as emission lines of…

New, high resolution, large-scale, cosmological hydrodynamic galaxy formation simulations of a standard cold dark matter model (with a cosmological constant) are utilized to predict the distribution of baryons at the present and at moderate…

天体物理学 · 物理学 2010-11-30 Renyue Cen , Jeremiah P. Ostriker

We report on the results from Suzaku broadband X-ray observations of the galactic binary source LS5039. The Suzaku data, which have continuous coverage of more than one orbital period, show strong modulation of the X-ray emission at the…

We examine Suzaku, XMM-Newton, and Chandra observations of the Abell 2029/2033 system to investigate the nature of a bridge of X-ray emission joining the two galaxy clusters. By modelling the contributions from the outskirts of the two…

宇宙学与河外天体物理 · 物理学 2021-10-27 M. S. Mirakhor , S. A. Walker , J. Runge

Hot intergalactic gas in clusters, groups, and filaments emanates a continuous background of 0.5-2.0 keV X-rays that ought to be detectable with the new generation of X-ray observatories. Here we present selected results from a program to…

天体物理学 · 物理学 2009-11-06 G. Mark Voit , Greg L. Bryan

We used Suzaku observations of the molecular cloud MBM20 and a low neutral hydrogen column density region nearby to separate and characterize the foreground and background diffuse X-ray emission. A comparison with a previous observation of…

星系天体物理 · 物理学 2009-11-24 A. Gupta , M. Galeazzi , D. Koutroumpa , R. Smith , R. Lallement

We observed IGR J16194-2810 in the low/hard state with the Suzaku X-ray satellite in 2009. The source is a Symbiotic X-ray Binary (SyXB) classified as a category of a Low-Mass X-ray Binary (LMXB), since the system is composed of an M-type…

高能天体物理现象 · 物理学 2015-06-17 Yuiko Kitamura , Hiromitsu Takahashi , Yasushi Fukazawa

The Galactic background radiation near the Scutum Arm was observed simultaneously with RXTE and OSSE in order to determine the spectral shape and the origin of the emission in the hard X-ray/soft gamma-ray band. The spectrum in the 3 keV to…

天体物理学 · 物理学 2009-10-31 Azita Valinia , Robert L. Kinzer , Francis E. Marshall

We test the X-ray emission predictions of galactic fountain models against XMM-Newton measurements of the emission from the Milky Way's hot halo. These measurements are from 110 sight lines, spanning the full range of Galactic longitudes.…

星系天体物理 · 物理学 2015-06-23 David B. Henley , Robin L. Shelton , Kyujin Kwak , Alex S. Hill , Mordecai-Mark Mac Low

The black-hole binary Cygnus X-1 was observed for 17 ks with the Suzaku X-ray observatory in 2005 October, while it was in a low/hard state with a 0.7-300 keV luminosity of 4.6 x 10^37 erg/s. The XIS and HXD spectra, spanning 0.7-400 keV,…

We relate the star formation from cold baryons in virialized structures to the X-ray properties of the associated diffuse, hot baryonic component. Our computations use the standard ``semi-analytic'' models to describe i) the evolution of…

天体物理学 · 物理学 2009-10-31 N. Menci , A. Cavaliere

The major sources of the Soft X-ray Background (SXRB), besides distinct structures as supernovae and superbubbles (e.g. Loop I), are: (i) an absorbed extragalactic emission following a power law, (ii) an absorbed thermal component ~2x10^6…

天体物理学 · 物理学 2009-11-13 Dimitra Koutroumpa , Rosine Lallement , Vasili Kharchenko , Alex Dalgarno

We analyze a pair of Suzaku shadowing observations in order to determine the X-ray spectrum of the Galaxy's gaseous halo. We simultaneously fit the spectra with models having halo, local, and extragalactic components. The intrinsic…

星系天体物理 · 物理学 2009-07-24 Shijun Lei , Robin L. Shelton , David B. Henley

In this paper we present the best quality XMM-Newton and Suzaku data from M82 X-1 so far. We analyze the spectra of this remarkable Ultra-Luminous X-ray Source in a self-consistent manner. We have disentangled emission from the host galaxy,…

高能天体物理现象 · 物理学 2015-05-30 M. D. Caballero-Garcia

We study the soft X-ray emission (0.1 - 1 keV) from the Warm-Hot Intergalactic Medium (WHIM) in a hydrodynamic simulation of a Cold Dark Matter universe. Our main goal is to investigate how such emission can be explored with a combination…

天体物理学 · 物理学 2009-11-10 T. Fang , R. A. C. Croft , W. T. Sanders , J. Houck , R. Dave , N. Katz , D. H. Weinberg , L. Hernquist

We have extended our earlier study (Heard & Warwick 2013, Paper I) of the X-ray emission emanating from the central 100 pc x 100 pc region of our Galaxy to an investigation of several features prominent in the soft X-ray (2-4.5 keV) band.…

高能天体物理现象 · 物理学 2015-06-16 V. Heard , R. S. Warwick

Using the archival ROSAT observation of TT Ari, X-ray energy spectra in different orbital phases and power spectra of the intensity time series are presented. Spectral fits show that the source gets brighter during the observation. The…

天体物理学 · 物理学 2007-05-23 A. Bayka , A. Esendemir , U. Kiziloglu , M. A. Alpar , H. Ogelman , N. Ercan , G. Ikis

Suzaku performed observations of 3 regions in and around the Shapley supercluster: a region located between A3558 and A3556, at ~0.9 times the virial radii of both clusters, and two other regions at 1{\deg}and 4{\deg}away from the first…