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相关论文: Large Scale Diffuse X-ray Emission from the Large …

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We found diffuse hard X-ray sources, G11.0+0.0, G25.5+0.0, and G26.6-0.1 in the ASCA Galactic plane survey data. The X-ray spectra are featureless with no emission line, and are fitted with both models of a thin thermal plasma in…

天体物理学 · 物理学 2009-11-07 Aya Bamba , Masaru Ueno , Katsuji Koyama , Shigeo Yamauchi

Observations with the Wisconsin H-alpha Mapper (WHAM) reveal a large, diffuse ionized halo that surrounds the Small Magellanic Cloud (SMC). We present the first kinematic H-alpha survey of an extended region around the galaxy, from (l,b) =…

星系天体物理 · 物理学 2020-01-08 Brianna M Smart , Lawrence M Haffner , Kat Barger , Alex Hill , Greg Madsen

The Small Magellanic Cloud is increasingly an invaluable laboratory for studying accreting and isolated X-ray pulsars. We add to the class of compact SMC objects by reporting the discovery of three new long period X-ray pulsars detected…

天体物理学 · 物理学 2010-05-12 D. J. Macomb , D. W. Fox , R. C. Lamb , T. A. Prince

It has been suggested that high-energy gamma-ray emission ($>100{\rm MeV}$) of nearby star-forming galaxies may be produced predominantly by cosmic rays colliding with the interstellar medium through neutral pion decay. The pion-decay…

高能天体物理现象 · 物理学 2017-07-04 Qing-Wen Tang , Fang-Kun Peng , Ruo-Yu Liu , Pak-Hin Thomas Tam , Xiang-Yu Wang

We present a study of the supernova remnant MCSNR J0512-6707 in the Large Magellanic Cloud. We used new data from XMM-Newton to characterise the X-ray emission and data from the Australian Telescope Compact Array, the Magellanic Cloud…

高能天体物理现象 · 物理学 2015-11-04 P. J. Kavanagh , M. Sasaki , L. M. Bozzetto , S. D. Points , M. D. Filipovic , P. Maggi , F. Haberl , E. J. Crawford

Recent observations with the Chandra X-ray Observatory have provided us with the capability to discriminate point sources, such as the supermassive black hole Sgr A*, from the diffuse emission within the inner 10'' of the Galaxy. The hot…

天体物理学 · 物理学 2009-11-10 Gabriel Rockefeller , Chris L. Fryer , Fulvio Melia , Michael S. Warren

We present an analysis of the archival XMM-Newton observations of the Large Magellanic Cloud (LMC) supernova remnant N132D totaling more than 500ks. We focus on the high temperature plasma ($kt\sim 4.5$keV) that is responsible for the high…

高能天体物理现象 · 物理学 2025-04-29 Adam R. Foster , Paul P. Plucinsky , Terrance J. Gaetz , Xi Long , Diab Jerius

Super-soft X-ray sources were established as a heterogeneous class of objects from observations of the Large Magellanic Cloud (LMC). We have searched for new sources of this class in the X-ray images obtained from the XMM-Newton survey of…

高能天体物理现象 · 物理学 2021-12-29 Chandreyee Maitra , Frank Haberl

We present the first compelling evidence of shock-heated molecular clouds associated with the supernova remnant (SNR) N49 in the Large Magellanic Cloud (LMC). Using $^{12}$CO($J$ = 2-1, 3-2) and $^{13}$CO($J$ = 2-1) line emission data taken…

We have carried out sub-mm 12CO(J=3-2) observations of 6 giant molecular clouds (GMCs) in the Large Magellanic Cloud (LMC) with the ASTE 10m sub-mm telescope at a spatial resolution of 5 pc and very high sensitivity. We have identified 32…

We report on the discovery of thermal and non-thermal X-rays from the shells of the super bubble (SB) 30 Dor C in the Large Magellanic Cloud (LMC). The X-ray morphology is a nearly circular shell with a radius of about 40 pc, which is…

天体物理学 · 物理学 2014-10-13 Aya Bamba , Masaru Ueno , Hiroshi Nakajima , Katsuji Koyama

Deep Chandra exposures reveal the presence of diffuse X-ray emission with a luminosity of 1.3x10^{39} ergs s^{-1} from the spiral galaxy NGC 3184. This appears to be truly diffuse thermal emission distinct from the low-luminosity LMXB…

天体物理学 · 物理学 2009-11-10 N. E. Doane , W. T. Sanders , E. M. Wilcots , M. Juda

Chandra ACIS-I data of the molecular cloud and HII region complex NGC 6334 were analyzed. The hard X-ray clumps detected with ASCA (Sekimoto et al. 2000) were resolved into 792 point sources. After removing the point sources, an extended…

天体物理学 · 物理学 2009-11-13 Yuichiro Ezoe , Motohide Kokubun , Kazuo Makishima , Yutaro Sekimoto , Keiichi Matsuzaki

We exploit XMM-Newton archival data in a study of the extended X-ray emission emanating from the Galactic Centre (GC) region. EPIC-pn and EPIC-MOS observations, with a total exposure approaching 0.5 and 1 Ms respectively, were used to…

高能天体物理现象 · 物理学 2015-06-11 V. Heard , R. S. Warwick

In order to reconstruct the global SEDs of the Magellanic Clouds over eight decades in spectral range, we combined literature flux densities representing the entire LMC and SMC respectively, and complemented these with maps extracted from…

宇宙学与河外天体物理 · 物理学 2015-05-19 F. P. Israel , W. F. Wall , D. Raban , W. T. Reach , C. Bot , J. B. R. Oonk , N. Ysard , J. P. Bernard

We present the first spectroscopically resolved \ha\ emission map of the Large Magellanic Cloud's (LMC) galactic wind. By combining new Wisconsin H-alpha Mapper (WHAM) observations ($I_{\rm H\alpha}\gtrsim10~{\rm mR}$) with existing \hicm\…

We present a study of the magnetic field of the Large Magellanic Cloud (LMC), carried out using diffuse polarized synchrotron emission data at 1.4 GHz acquired at the Parkes Radio Telescope and the Australia Telescope Compact Array. The…

A mosaic of 7 ROSAT PSPC pointed observations in the direction of (l,b ~ 10,0 deg) reveals deep X-ray shadows in the 0.5-2.0 keV band cast by dense molecular gas. The comparison between the observed on-cloud and off-cloud X-ray fluxes…

天体物理学 · 物理学 2009-10-28 Sangwook Park , John P. Finley , Steven L. Snowden , Thomas M. Dame

We present an 82 ksec Chandra ACIS-I observation of a large-scale hierarchical complex, which consists of various clusters/groups of galaxies and low-surface brightness X-ray emission at z = 0.247. This high-resolution {\sl Chandra}…

天体物理学 · 物理学 2009-11-10 Q. Daniel Wang , Frazer Owen , Michael Ledlow

The rotation of the disk of the Large Magellanic Cloud (LMC) is derived from the radial velocities of 422 carbon stars. New aspects of this analysis include the propagation of uncertainties in the LMC proper motion with a Monte Carlo, and a…

天体物理学 · 物理学 2014-10-13 David R. Alves , Cailin A. Nelson