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Supernova shocks into dense molecular cores in IC 443 (clumps B, C, and G) and 3C 391 were observed using the Stratospheric Observatory for Infrared Astronomy and complemented by archival data from the Herschel Space Observatory. The pure…

Astrophysics of Galaxies · Physics 2024-11-07 William T. Reach , Ngoc Le Tram , Curtis DeWitt , Pierre Lesaffre , Benjamin Godard , Antoine Gusdorf

G1.9+0.3 is the youngest known Galactic supernova remnant (SNR), with an estimated supernova (SN) explosion date of about 1900, and most likely located near the Galactic Center. Only the outermost ejecta layers with free-expansion…

High Energy Astrophysical Phenomena · Physics 2015-06-16 K. J. Borkowski , S. P. Reynolds , U. Hwang , D. A. Green , R. Petre , K. Krishnamurthy , R. Willett

We identify the radio-emitting shell-type supernova remnant G15.9+0.2 as a relatively young remnant containing an X-ray point source that may be its associated neutron star. The integrated spectrum of the remnant shell obtained from our 30…

Astrophysics · Physics 2009-11-11 S. P. Reynolds , K. J. Borkowski , U. Hwang , I. Harrus , R. Petre , G. Dubner

The discovery of the youngest Galactic supernova remnant (SNR) G1.9+0.3 has allowed a look at a stage of SNR evolution never before observed. We analyze the 50 ks Chandra observation with particular regard to spectral variations. The very…

Astrophysics of Galaxies · Physics 2009-11-13 S. P. Reynolds , K. J. Borkowski , D. A. Green , U. Hwang , I. Harrus , R. Petre

We present optical, radio and X-ray data that confirm a new supernova remnant (SNR) in the Large Magellanic Cloud (LMC) discovered using our deep H-alpha imagery. Optically, the new SNR has a somewhat filamentary morphology and a diameter…

Astrophysics of Galaxies · Physics 2016-03-08 Warren A. Reid , Milorad Stupar , Luke M. Bozzetto , Quentin A. Parker , Miroslav D. Filipovic

We present a detailed radio, X-ray and optical study of a newly discovered Large Magellanic Cloud (LMC) supernova remnant (SNR) which we denote MCSNR J0508-6902. Observations from the Australian Telescope Compact Array (ATCA) and the…

Recent advances in the understanding of the properties of supernova remnant shocks have been precipitated by the Chandra and XMM X-ray Observatories, and the HESS Atmospheric Cerenkov Telescope in the TeV band. A critical problem for this…

Astrophysics · Physics 2008-11-26 Matthew G. Baring , Errol J. Summerlin

The observation of the supernova remnant N132D by the scientific instruments on board the XMM-Newton satellite is presented. The X-rays from N132D are dispersed into a detailed line-rich spectrum using the Reflection Grating Spectrometers.…

We observed the oxygen-rich Large Magellanic Cloud (LMC) supernova remnant N132D (SNR 0525-69.6), using all instruments onboard the Spitzer Space Telescope, IRS, IRAC, and MIPS (Infrared Spectrograph, Infrared Array Camera, Multiband…

Astrophysics · Physics 2011-02-11 A. Tappe , J. Rho , W. T. Reach

Deep optical CCD images of the supernova remnant G 15.1-1.6 were obtained and filamentary and diffuse emission has been discovered. The images, taken in the emission lines of Halpha+[N II], [S II] and [O III], reveal filamentary and diffuse…

We report the results from a spectrophotometric study sampling the roughly 300 candidate supernova remnants (SNRs) in M83 identified through optical imaging with Magellan/IMACS and HST/WFC3. Of the 118 candidates identified based on a high…

Astrophysics of Galaxies · Physics 2017-04-26 P. Frank Winkler , William P. Blair , Knox S. Long

We report optical and near-infrared observations of SN 2012ca with the Public ESO Spectroscopy Survey of Transient Objects (PESSTO), spread over one year since discovery. The supernova (SN) bears many similarities to SN 1997cy and to other…

The last ten years a number of observational advances have substantially increased our knowledge of shock phenomena in supernova remnants. This progress has mainly been made possible by the recent improvements in X-ray and Gamma-ray…

Astrophysics · Physics 2009-11-07 Jacco Vink

We present new {\it Hubble Space Telescope} images of high-velocity H-$\alpha$ and Lyman-$\alpha$ emission in the outer debris of SN~1987A. The H-$\alpha$ images are dominated by emission from hydrogen atoms crossing the reverse shock. For…

We present mid-infrared (5-40 micron) spectra of shocked ejecta in the Galactic oxygen-rich supernova remnant G292.0+1.8, acquired with the IRS spectrograph on board the Spitzer Space Telescope. The observations targeted two positions…

Astrophysics of Galaxies · Physics 2011-02-11 Parviz Ghavamian , John C. Raymond , William P. Blair , Knox S. Long , Achim Tappe , Sangwook Park , P. Frank Winkler

We present high spatial resolution X-ray spectroscopy of supernova remnant G292.0+1.8 with the {\sl Chandra} observations. The X-ray emitting region of this remnant was divided into 25 $\times$ 25 pixels with a scale of 20$\arcsec$ $\times$…

High Energy Astrophysical Phenomena · Physics 2015-06-19 Xue-Juan Yang , Xiaoqin Liu , Shun-yu Li , Fang-Jun Lu

Using data from the Chandra X-Ray Observatory, we revisited the reverse shock in the supernova remnant (SNR) Cassiopeia A.Based on the spectroscopic of a series of annuli in the northwest (NW) and southeast (SE), we get the radial profiles…

High Energy Astrophysical Phenomena · Physics 2024-05-29 Yin Wu , Xuejuan Yang

How Supernova Remnant (SNR) shocks impact nearby molecular clouds is still poorly observationally constrained. It is unclear if SNRs can positively or negatively affect clouds star formation potential. We have studied the dense gas…

We have observed two fields - Field-I (l=3.2 degrees, b=-1.0 degree) and Field-II (l=356.8 degrees, b=-0.1 degree) with the Giant Metrewave Radio Telescope (GMRT) at 330 MHz. In the first field, we have studied the candidate supernova…

Astrophysics · Physics 2009-11-07 Subhashis Roy , A. Pramesh Rao