English
Related papers

Related papers: Investigating Galactic supernova remnant candidate…

200 papers

We present a spatially resolved spectroscopic analysis of the young Galactic supernova remnant Kes 75 (SNR G29.7-0.3) using the Chandra X-ray Observatory. Kes 75 is one of an increasing number of examples of a shell-type remnant with a…

Astrophysics · Physics 2009-11-07 David J. Helfand , Benjamin F. Collins , E. V. Gotthelf

We report the ATCA and ROSAT detection of Supernova Remnant (SNR) J0529--6653 in the Large Magellanic Cloud (LMC) which is positioned in the projected vicinity of the known radio pulsar PSR B0529-66. In the radio-continuum frequencies, this…

The newly discovered supernova remnant G266.2-1.2 (RX J0852.0--0462), along the line of sight to the Vela SNR, was observed with ASCA for 120 ks. We find that the X-ray spectrum is featureless, and well described by a power law, extending…

We present results of a search for supernova remnants (SNRs) in archival Chandra images of M33. We have identified X-ray SNRs by comparing the list of Chandra, X-ray sources in M33 with tabulations of SNR candidates identified from (1)…

Wide field CCD observations of three, less known, supernova remnants. Filamentary and diffuse emission is discovered from the supernova remnant G67.7+1.8. Emission can also be seen in the ROSAT All Sky Survey data which indicate an extended…

Astrophysics · Physics 2019-08-17 F. Mavromatakis , J. Papamastorakis , J. Ventura , W. Becker , E. V. Paleologou , D. Schaudel

Supernova remnants (SNRs) are observable for about 6-15x10^4 years before they fade into the Galactic interstellar medium. With a Galactic supernova rate of approximately two per century, we can expect to have of the order of 1200 SNRs in…

High Energy Astrophysical Phenomena · Physics 2021-04-07 W. Becker , N. Hurley-Walker , Ch. Weinberger , L. Nicastro , M. G. F. Mayer , A. Merloni , J. Sanders

G347.3-0.5 (RX J1713.7-3946) is a member of the new class of shell-type Galactic supernova remnants (SNRs) that feature non-thermal components to their X-ray emission. We have analyzed the X-ray spectrum of this SNR over a broad energy…

Astrophysics · Physics 2007-05-23 Thomas G. Pannuti , Glenn E. Allen

This work focuses on the detection of X-ray Supernova Remnants (SNRs) in the galaxy NGC 7793 and the study of their properties. X-ray SNRs in galaxies beyond the Local Group are rare, mainly due to the limited sensitivity of current X-ray…

High Energy Astrophysical Phenomena · Physics 2025-09-10 Maria Kopsacheili , Konstantina Anastasopoulou , Nanda Rea , Claudia Patricia Gutiérrez , Lluís Galbany

We study the spectral and polarization properties of supernova remnants (SNRs) based on our 6cm survey data. The observations were taken from the Sino-German 6cm polarization survey of the Galactic plane. By using the integrated flux…

Astrophysics of Galaxies · Physics 2015-05-30 X. H. Sun , P. Reich , W. Reich , L. Xiao , X. Y. Gao , J. L. Han

Recent X-ray observations have proved to be very effective in detecting previously unknown supernova remnant shells around pulsar wind nebulae (PWNe), and in these cases the characteristics of the shell provide further clues on the…

High Energy Astrophysical Phenomena · Physics 2015-05-18 F. Bocchino , R. Bandiera , J. Gelfand

We present a multi-wavelength study of the radio source G296.7-0.9. This source has a bilateral radio morphology, a radio spectral index of -0.5 +/- 0.1, sparse patches of linear polarisation, and thermal X-rays with a bright arc near the…

Astrophysics of Galaxies · Physics 2015-05-30 W. J. Robbins , B. M. Gaensler , T. Murphy , S. Reeves , A. J. Green

We report here on the first detection at X-ray wavelengths of the Supernova Remnant (SNR) G337.8-0.1, carried out with the XMM-Newton Observatory. Using the X-ray observations, we studied the X-ray morphology of the remnant at different…

Astrophysics · Physics 2009-11-13 J. A. Combi , J. F. Albacete-Colombo , J. Marti

The relatively nearby spiral galaxy NGC~6946 is one of the most actively star forming galaxies in the local Universe. Ten supernovae (SNe) have been observed since 1917, and hence NGC6946 surely contains a large number of supernova remnants…

High Energy Astrophysical Phenomena · Physics 2019-04-24 Knox S. Long , P. Frank Winkler , William P. Blair

Aims. We report the first detailed X-ray study of the supernova remnant (SNR) G304.6+0.1, achieved with the XMM-Newton mission. Methods. The powerful imaging capability of XMM-Newton was used to study the X-ray characteristics of the…

The Large Magellanic Cloud (LMC) is rich in supernova remnants (SNRs) which can be investigated in detail with radio, optical and X-ray observations. SNR J0453-6829 is an X-ray and radio-bright remnant in the LMC, within which previous…

High Energy Astrophysical Phenomena · Physics 2015-06-05 F. Haberl , M. D. Filipovic , L. M. Bozzetto , E. J. Crawford , S. D. Points , W. Pietsch , A. Y. De Horta , N. Tothill , J. L. Payne , M. Sasaki

The high sensitivity of the XMM-Newton instrumentation offers the opportunity to study faint and extended sources in the Milky Way and nearby galaxies such as the Large Magellanic Cloud (LMC) in detail. The ROSAT PSPC survey of the LMC has…

High Energy Astrophysical Phenomena · Physics 2015-06-03 M. -H. Grondin , M. Sasaki , F. Haberl , W. Pietsch , E. J. Crawford , M. D. Filipovic , L. M. Bozzetto , S. Points , R. C. Smith

We present the analysis of archival X-ray observations of the supernova remnant (SNR) G21.5-0.9. Based on its morphology and spectral properties, G21.5-0.9 has been classified as a Crab-like SNR. In their early analysis of the CHANDRA…

Astrophysics · Physics 2009-11-06 S. Safi-Harb , I. M. Harrus , R. Petre , G. P. Pavlov , A. B. Koptsevich , D. Sanwal

To date, over 220 emission nebulae in M33 have been identified as supernova remnants (SNRs) or SNR candidates, principally through [SII]:Halpha line ratios that are elevated compared to those in H II regions. In many cases, the…

Astrophysics of Galaxies · Physics 2018-04-04 Knox S. Long , William P. Blair , Dan Milisavljevic , John C. Raymond , P. Frank Winkler

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

G315.4-2.3 is an extended shell supernova remnant (SNR) with some characteristics of evolutionarily young remnants and some of older ones. To further elucidate some of its characteristics, we present imaging and polarimetry of this SNR at a…

Astrophysics · Physics 2009-10-31 John R. dickel , Richard G. Strom , D. K. Milne