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相关论文: A Deep X-ray View of the Synchrotron-Dominated Sup…

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We present the results of wide integral-field near-infrared (1.0-1.8 um) spectroscopic observations of the southeastern shell of the young core-collapse supernova remnant (SNR) G11.2-0.3. We first construct [Fe II] 1.644 um line images of…

We present high-resolution X-ray observations of the small-diameter supernova remnant (SNR) G349.7+0.2 with the Chandra X-ray Observatory. The overall SNR spectrum can be described by two spectral components. The soft component is in…

天体物理学 · 物理学 2009-11-10 J. S. Lazendic , P. O. Slane , J. P. Hughes , Y. Chen , T. M. Dame

We study the outer-shock structure of the oxygen-rich supernova remnant G292.0+1.8, using a deep observation with the Chandra X-ray Observatory. We measure radial variations of the electron temperature and emission measure that we identify…

We present an analysis of the XMM-Newton and Chandra X-ray data of the young Type Ia supernova remnant 0519-69.0 in the Large Magellanic Cloud. We used data from both the Chandra ACIS and XMM-Newton EPIC-MOS instruments, and high resolution…

高能天体物理现象 · 物理学 2010-05-11 Daria Kosenko , Eveline Helder , Jacco Vink

We present far-infrared images of the Galactic oxygen-rich supernova remnant (SNR) G292.0+1.8, acquired with the PACS and SPIRE instruments of the Herschel Space Observatory. We find that the SNR shell is detected in the PACS blue (100…

高能天体物理现象 · 物理学 2016-11-15 Parviz Ghavamian , Brian J. Williams

We present a 3-dimensional model of supernova remnants (SNRs) where the hydrodynamical evolution of the remnant is modeled consistently with nonlinear diffusive shock acceleration occuring at the outer blast wave. The model includes…

天体物理学 · 物理学 2009-11-13 Shiu-Hang Lee , Tsuneyoshi Kamae , Donald C. Ellison

A detailed analysis of the nonthermal X-ray emission from the North-Western and Southern parts of the supernova remnant (SNR) HESS J1731$ - $347 with {\it Suzaku} is presented. The shell portions covered by the observations emit hard and…

高能天体物理现象 · 物理学 2015-06-05 Aya Bamba , Gerd Puehlhofer , Fabio Acero , Dmitry Klochkov , Wenwu Tian , Ryo Yamazaki , Zhiyuan Li , Dieter Horns , Karl Kosack , Nukri Komin

Using the BeppoSAX satellite we have obtained the first secure X-ray detection of the supernova remnant G0.9+0.1. The 1-10 keV spectrum can be described with an absorbed power law with photon index 3 and N_H = 3 times 10^{23} cm^2. The high…

天体物理学 · 物理学 2007-05-23 S. Mereghetti , L. Sidoli , G. L. Israel

We report the discovery of thermal X-ray emission from the youngest Galactic supernova remnant G1.9+0.3, from a 237-ks Chandra observation. We detect strong K-shell lines of Si, S, Ar, Ca, and Fe. In addition, we detect a 4.1 keV line with…

We present results obtained from a series of observations of the supernova remnant RX J1713.7-3946 by the Suzaku satellite. The observations cover about two-thirds of the remnant surface. We successfully detected hard X-rays up to ~ 40 keV…

We present new images of the low radio surface brightness Supernova Remnant (SNR) G126.2+1.6, based on the 408 MHz and 1420 MHz continuum emission and the HI-line emission data of the Canadian Galactic Plane Survey (CGPS). {\bf We find the…

天体物理学 · 物理学 2009-11-11 Wenwu Tian , Denis A. Leahy

Since the discovery of synchrotron X-ray emission from the shell of the supernova remnant (SNR) SN 1006, multiple observations from Chandra and XMM-Newton have shown that many young SNRs produce synchrotron emission in X-rays. Among those,…

高能天体物理现象 · 物理学 2024-12-24 Adrien Picquenot , Brian J. Williams , Fabio Acero , Koji Mori

The cosmic-ray spectrum up to the knee ($E\sim 10^{15}$ eV) is attributed to acceleration processes taking place at the blastwaves which bound supernova remnants. Theoretical predictions give a similar estimate for the maximum energy which…

天体物理学 · 物理学 2009-10-31 Eric van der Swaluw , Abraham Achterberg , Yves A. Gallant

A new Chandra observation of SNR 0506-68.0 (also called N23) reveals a complex, highly structured morphology in the low energy X-ray band and an isolated compact central object in the high energy band. Spectral analysis indicates that the…

Aims. The properties of the Galactic supernova remnant (SNR) RX J0852.0-4622 are theoretically analysed. Methods. An explicitly time-dependent, nonlinear kinetic model of cosmic ray (CR) acceleration in SNRs is used to describe the…

高能天体物理现象 · 物理学 2015-05-13 E. G. Berezhko , G. Pühlhofer , H. J. Völk

We present the results of deep ASCA observations of two shell-like radio supernova remnants (SNRs) located in the direction to the Galactic center (GC) region. Unlike the radio morphology, G359.1-0.5 shows center-filled X-rays with…

天体物理学 · 物理学 2015-06-24 Aya Bamba , Jun Yokogawa , Masaaki Sakano , Katsuji Koyama

We present the 2-60 keV spectrum of the supernova remnant Cassiopeia A measured using the Proportional Counter Array and the High Energy X-ray Timing Experiment on the Rossi X-ray Timing Explorer satellite. In addition to the previously…

We present the first results from an imaging and a spectroscopic survey of the optical emission associated with supernova remnant (SNR) G107.5$-$1.5. We discovered optical diffuse and filamentary emission from G107.5$-$1.5 using the 1.5-m…

高能天体物理现象 · 物理学 2023-03-01 Hicran Bakis , Gunay Bulut , Volkan Bakis , Hidetoshi Sano , Aytap Sezer

We present the preliminary results of a Chandra X-ray study of N132D, a young shell-like supernova remnant (SNR) in the Large Magellanic Cloud. The equivalent width maps of emissions from O, Ne, Mg, Si, and S are provided. Spatially…

天体物理学 · 物理学 2008-11-26 Xiao Xiao , Yang Chen

We present a spatially resolved spectral analysis of full ASCA observations of the remnant of the supernova of 1006 AD. This remnant shows both nonthermal X-ray emission from bright limbs, generally interpreted as synchrotron emission from…

天体物理学 · 物理学 2009-04-28 K. K. Dyer , S. P. Reynolds , K. J. Borkowski