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

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The halo of the Milky Way provides a laboratory to study the properties of the shocked hot gas that is predicted by models of galaxy formation. There is observational evidence of energy injection into the halo from past activity in the…

The circumgalactic medium (CGM) of the Milky Way is composed of a tenuous atmosphere filled with multi-phase plasma, including a warm-hot virialised component. Recent studies suggest a much hotter (~0.7 keV) super-virial component detected…

Radiation in the extreme ultraviolet (EUV) and soft X-ray holds clues to the location of the missing baryons, the energetics in stellar feedback processes, and the cosmic enrichment history. Additionally, EUV and soft X-ray photons help…

宇宙学与河外天体物理 · 物理学 2019-02-13 Phoebe R. Upton Sanderbeck , Matthew McQuinn , Anson D'Aloisio , Jessica K. Werk

We present an analysis of the Suzaku observations of the prototype wind-blown bubble NGC 6888 which is based both on use of standard spectral models and on a direct comparison of theoretical models with observations. The X-ray spectra of…

高能天体物理现象 · 物理学 2015-05-20 Svetozar A. Zhekov , Sangwook Park

Small angular scale structure of the soft X-ray background correlated with the galaxy distribution is investigated. An extensive data sample from the ROSAT and XMM-Newton archives are used. Excess emission below 1 keV extending up to at…

天体物理学 · 物理学 2007-05-23 A. M. Soltan , M. J. Freyberg , G. Hasinger

The nearby ($z=0.03015$) cluster of galaxies Abell~2199 was observed by Suzaku in X-rays, with five pointings for $\sim 20$ ks each. From the XIS data, the temperature and metal abundance profiles were derived out to $\sim 700$ kpc (0.4…

宇宙学与河外天体物理 · 物理学 2015-05-14 Madoka Kawaharada , Kazuo Makishima , Takao Kitaguchi , Sho Okuyama , Kazuhiro Nakazawa , Yasushi Fukazawa

We present the results of a Suzaku spectroscopic study of the soft extended X-ray emission in the HII region M17. The spectrum of the extended emission was obtained with a high signal-to-noise ratio in a spatially-resolved manner using the…

We present calculations of the heliospheric SWCX emission spectra and their contributions in the ROSAT 1/4 keV band. We compare our results with the soft X-ray diffuse background (SXRB) emission detected in front of 378 identified shadowing…

天体物理学 · 物理学 2011-02-11 D. Koutroumpa , R. Lallement , J. C. Raymond , V. Kharchenko

We present a detailed analysis of the X-ray emission from the middle-aged supernova remnant W51C and star-forming region W51B with Suzaku. The soft X-ray emission from W51C is well represented by an optically thin thermal plasma in the…

高能天体物理现象 · 物理学 2015-06-12 Yoshitaka Hanabata , Makoto Sawada , Hideaki Katagiri , Aya Bamba , Yasushi Fukazawa

About half of the baryons in the local Universe are thought to reside in the so-called warm-hot intergalactic medium (WHIM) at temperatures of 0.1-10 million K. Thermal soft excess emission in the spectrum of some cluster outskirts that…

We report on Suzaku observations of large-scale X-ray structures possibly related with the Fermi Bubbles obtained in 2013 with a total duration of ~ 80 ks. The observed regions were the: (i) northern cap (N-cap; l ~ 0 deg, 45 deg < b < 55…

高能天体物理现象 · 物理学 2015-06-23 M. Tahara , J. Kataoka , Y. Takeuchi , T. Totani , Y. Sofue , J. S. Hiraga , H. Tsunemi , Y. Inoue , M. Kimura , C. C. Cheung , S. Nakashima

Unified X-ray spectral and timing studies of Cygnus X-1 in the low/hard and hard intermediate state were conducted in a model-independent manner, using broadband Suzaku data acquired on 25 occasions from 2005 to 2009 with a total exposure…

高能天体物理现象 · 物理学 2015-06-15 Shin'ya Yamada , Kazuo Makishima , Chris Done , Shunsuke Torii , Hirofumi Noda , Soki Sakurai

The X-ray bright bubbles at the Galactic Center provide an opportunity to understand the effects of feedback on galaxy evolution. The shells of the eROSITA bubbles show enhanced X-ray emission over the sky background. Previously, these…

星系天体物理 · 物理学 2023-05-04 Anjali Gupta , Smita Mathur , Josh Kingsbury , Sanskriti Das , Yair Krongold

We describe the X-ray emission as observed with Suzaku from five symbiotic stars that we selected for deep Suzaku observations after their initial detection with ROSAT, ASCA and Swift. We find that the X-ray spectra of all five sources can…

高能天体物理现象 · 物理学 2016-06-15 N. E. Nuñez , T. Nelson , K. Mukai , J. L. Sokoloski , G. J. M. Luna

The hot Local Bubble surrounding the solar neighborhood has been primarily studied through observations of its soft X-ray emission. The measurements were obtained by attributing all of the observed local soft X-rays to the bubble. However,…

天体物理学 · 物理学 2009-06-23 Robin L. Shelton

Superflares on the solar type stars observed by \textit{Kepler} demonstrate the contrast in the optical continuum of the order 0.1--1 per cent. The mechanism of formation of this radiation is not firmly established. We consider a model…

太阳与恒星天体物理 · 物理学 2020-04-09 B. A. Nizamov

We analyzed data from a shadow observation of the high density molecular cloud MBM36 (l~4{\deg}, b~35{\deg}) with Suzaku. MBM36 is located in a region that emits relatively weakly in the 3/4~keV band, compared to the surrounding NPS/Loop 1…

星系天体物理 · 物理学 2016-01-13 E. Ursino , M. Galeazzi , W. Liu

The model of a Local Hot Bubble has been widely accepted as providing a framework that can explain the ubiquitous presence of the soft X-ray background diffuse emission. We summarize the current knowledge on this local interstellar region,…

星系天体物理 · 物理学 2009-08-11 Barry Y. Welsh , Robin L. Shelton

The ubiquitous diffuse soft (1/4 keV) X-ray background was one of the earliest discoveries of X-ray astronomy. At least some of the emission may arise from charge exchange between solar wind ions and neutral atoms in the heliosphere, but no…

高能天体物理现象 · 物理学 2015-06-19 Randall K. Smith , Adam R. Foster , Richard J. Edgar , Nancy S. Brickhouse

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…