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A survey of the inner 8$^\circ \times 1^\circ$ of the Galactic plane toward the Galactic center has been carried out at the 1720 MHz transition of OH molecule using the VLA in its D configuration with a resolution of…

天体物理学 · 物理学 2009-05-20 F. Yusef-Zadeh , W. M. Goss , D. A. Roberts , B. Robinson , D. A. Frail

We re-analysed numerous archival Chandra X-ray observations of the bright supernova remnant (SNR) 1E 0102.2-7219 in the Small Magellanic Cloud, to validate the detection of a neutron star (NS) in the SNR by Vogt et al. (2018). Careful…

高能天体物理现象 · 物理学 2019-09-13 Pavan R. Hebbar , Craig O. Heinke , Wynn C. G. Ho

We present Chandra X-ray observations of the supernova remnant (SNR) N63A in the Large Magellanic Cloud (LMC). N63A, one of the brightest LMC remnants, is embedded in an H II region and probably associated with an OB association. The…

天体物理学 · 物理学 2009-11-07 Jessica S. Warren , John P. Hughes , Patrick O. Slane

Supernova remnants are among the most spectacular examples of astrophysical pistons in our cosmic neighborhood. The gas expelled by the supernova explosion is launched with velocities ~ 1000 km/s into the ambient, tenuous interstellar…

The launch of Chandra and XMM-Newton has led to important new findings concerning the X-ray emission from supernova remnants. These findings are a result of the high spatial resolution with which imaging spectroscopy is now possible, but…

天体物理学 · 物理学 2007-05-23 Jacco Vink

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

ISO spectral observations of the supernova remnant RCW103 are presented. This object is the prototype of relatively young remnants with fast shocks interacting with dense interstellar medium. The spectrum is dominated by prominent lines of…

天体物理学 · 物理学 2007-05-23 E. Oliva , A. F. M. Moorwood , S. Drapatz , D. Lutz , E. Sturm

We report the localization of the forward and reversed shock fronts in the young supernova remnant Cas-A using X-ray data obtained with the Chandra Observatory. High resolution X-ray maps resolve a previously unseen X-ray feature…

天体物理学 · 物理学 2009-11-06 E. V. Gotthelf , B. Koralesky , L. Rudnick , T. W. Jones , U. Hwang , R. Petre

Studying the remnants of young core-collapse supernovae (SNe) can yield insight into the chemical composition of their progenitors and the geometry of the explosions. The supernova remnant (SNR) G292.0+1.8 is one of only three known…

高能天体物理现象 · 物理学 2026-02-18 Adele L. Plunkett , P. Frank Winkler , Knox S. Long , Dan Milisavljevic

We present two-dimensional MHD simulations of the evolution of a young Type Ia supernova remnant during its interaction with an interstellar cloud of comparable size at impact. We include for the first time in such simulations explicit…

天体物理学 · 物理学 2009-10-30 Byung-Il Jun , T. W. Jones

We report re-analyses of the Suzaku observations of the Galactic supernova remnant (SNR), G272.2$-$3.2, for which the previous studies were limited below 3 keV. With careful data reduction and background subtraction, we discover the K-shell…

We present results from mid-IR spectroscopic observations of two young supernova remnants (SNRs) in the Large Magellanic Cloud (LMC) done with the {\it Spitzer Space Telescope}. We imaged SNRs B0509-67.5 and B0519-69.0 with {\it Spitzer} in…

We perform extensive spectroscopy of the supernova remnant N63A in the Large Magellanic Cloud, using $\sim 43$ ks {\it Chandra} archival data. By analysing the spectra of the entire remnant, we determine the abundance distributions for O,…

高能天体物理现象 · 物理学 2023-05-24 E. Karagoz , N. Alan , S. Bilir , S. Ak

We report the results of an observation of a large diameter (110 pc) supernova remnant (SNR) found to encircle the position of the ultraluminous X-ray source (ULX) IC 342 X-1. The inferred initial energy input to the SNR is at least 2 -- 3…

天体物理学 · 物理学 2009-11-07 T. P. Roberts , M. R. Goad , M. J. Ward , R. S. Warwick

We examine the evolution of inhomogeneities (fragments) of supernova ejecta in compact supernova remnants by means of hydrodynamical modeling and simplified analytical calculations. Under the influence of intense post-shock cooling the…

天体物理学 · 物理学 2015-06-24 R. Cid-Fernandes , T. Plewa , M. Rozyczka , J. Franco , R. Terlevich , G. Tenorio-Tagle , W. Miller

G292.0+1.8 (G292) is a young ($\sim$3000 yr), Galactic textbook-type core-collapse supernova remnant (CCSNR). It is characterized by X-ray, optical and infrared emission from ejecta and circumstellar medium (CSM) features, and contains a…

高能天体物理现象 · 物理学 2019-02-13 Jayant Bhalerao , Sangwook Park , Andrew Schenck , Seth Post , John P. Hughes

RX J0046.5$-$7308 is a shell-type supernova remnant (SNR) in the Small Magellanic Cloud (SMC). We carried out new $^{12}$CO($J$ = 1-0, 3-2) observations toward the SNR using Mopra and the Atacama Submillimeter Telescope Experiment. We found…

At a distance of 50 kpc, Supernova 1987A is an ideal target to study how a young supernova (SN) evolves in time. Its equatorial ring, filled with material expelled from the progenitor star about 20,000 years ago, has been engulfed with SN…

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

Due to its centrally bright X-ray morphology and limb brightened radio profile, MSH 11-61A (G290.1-0.8) is classified as a mixed morphology supernova remnant (SNR). H$\textsc{i}$ and CO observations determined that the SNR is interacting…

高能天体物理现象 · 物理学 2015-09-09 Katie Auchettl , Patrick Slane , Daniel Castro , Adam R. Foster , Randall K. Smith