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We present the first dedicated X-ray study of the supernova remnant (SNR) G32.8-0.1 (Kes 78) with Suzaku. X-ray emission from the whole SNR shell has been detected for the first time. The X-ray morphology is well correlated with the…

High Energy Astrophysical Phenomena · Physics 2016-02-17 Aya Bamba , Yukikatsu Terada , John Hewitt , Robert Petre , Lorella Angelini , Samar Safi-Harb , Ping Zhou , Fabrizio Bocchino , Makoto Sawada

We report the observations of the radio shell of the supernova remnant (SNR) G310.6-1.6 at 943 MHz from the Evolutionary Map of the Universe (EMU) and the Polarization Sky Survey of the Universe's Magnetism (POSSUM) surveys by using the…

We report on the discovery of two supernova remnants (SNRs) designated G152.4-2.1 and G190.9-2.2, using Canadian Galactic Plane Survey data. The aims of this paper are, first, to present evidence that favours the classification of both…

Astrophysics of Galaxies · Physics 2013-01-15 Tyler Foster , Brendan Cooper , Wolfgang Reich , Roland Kothes , Jennifer West

We present CO observations toward three large supernova remnants (SNRs) in the third Galactic quadrant using the Purple Mountain Observatory Delingha 13.7m radio telescope. The observations are part of the high-resolution CO survey of the…

Astrophysics of Galaxies · Physics 2017-03-08 Yang Su , Xin Zhou , Ji Yang , Xuepeng Chen , Yang Chen , Yi Liu , Hongchi Wang , Chong Li , Shaobo Zhang

The supernova remnant (SNR) G288.8-6.3 was recently discovered as a faint radio shell at large Galactic latitude using observations with ASKAP in the EMU survey. Here, we make the first detailed investigation of the $\gamma$-ray emission…

A thorough inspection of known Galactic Supernova Remnants (SNRs) along the Galactic plane with SRG/eROSITA yielded the detection of the X-ray counterpart of the SNR G279.0+01.1. The SNR is located just 1.5 deg above the Galactic plane. Its…

High Energy Astrophysical Phenomena · Physics 2024-05-03 Miltiadis Michailidis , Gerd Pühlhofer , Andrea Santangelo , Werner Becker , Manami Sasaki

Mixed-morphology supernova remnants (MM SNRs) are a mysterious class of objects that display thermal X-ray emission within their radio shell. They are an older class of SNRs, and as such are profoundly affected by the environment into which…

High Energy Astrophysical Phenomena · Physics 2019-02-27 M. Arias , J. Vink , M. Iacobelli , V. Domcek , M. Haverkorn , J. B. R. Oonk , I. Polderman , W. Reich , G. J. White , P. Zhou

Aims: We study the supernova remnant G20.0-0.2 and its surroundings in order to look for the high energy counterpart of the radio nebula and to find evidence of interaction between the shock front and the interstellar medium. Methods: We…

Astrophysics of Galaxies · Physics 2015-06-15 Alberto Petriella , Sergio Paron , Elsa Giacani

Recently the Galactic and Extra-galactic All-sky Murchison Widefield Array survey has published 27 new candidate radio supernova remnants (SNRs) which are located within the longitude ranges of 345{\deg} < l < 60{\deg} and 180{\deg} < l <…

High Energy Astrophysical Phenomena · Physics 2023-05-02 B. M. Mese , T. Ergin

Motivated by the recent discovery of a low surface brightness diffuse emission, a supernova remnant (SNR) candidate, surrounding the young pulsar PSR~J0837--2454, we carry out a likelihood analysis of the $\gamma$-ray data obtained by the…

High Energy Astrophysical Phenomena · Physics 2023-07-19 Pengfei Zhang , Yuliang Xin

Supernova remnants (SNRs) are prime candidates for efficient particle acceleration up to the knee in the cosmic ray particle spectrum. In this work we present a new method for a systematic search for new TeV-emitting SNR shells in 2864…

High Energy Astrophysical Phenomena · Physics 2019-08-14 D. Gottschall , M. Capasso , C. Deil , A. Djannati-Atai , A. Donath , P. Eger , V. Marandon , N. Maxted , G. Pühlhofer , M. Renaud , M. Sasaki , R. Terrier , J. Vink

We investigate two multi-shell galactic supernova remnants (SNRs), Kes79 and G352.7-0.1, to understand the causes of such morphology. The research was carried out based on new and reprocessed archival VLA observations and XMM-Newton…

Astrophysics of Galaxies · Physics 2015-05-13 E. Giacani , M. J. S. Smith , G. Dubner , N. Loiseau , G. Castelletti , S. Paron

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 report on XMM-Newton and Chandra observations of the Galactic supernova remnant candidate G38.7-1.4, together with complementary radio, infrared, and gamma-ray data. An approximately elliptical X-ray structure is found to be well…

High Energy Astrophysical Phenomena · Physics 2015-06-18 R. H. H. Huang , J. H. K. Wu , C. Y. Hui , K. A. Seo , L. Trepl , A. K. H. Kong

We have carried out 12CO, 13CO, and C18O observations toward the mixed morphology supernova remnant (SNR) IC 443. The observations cover a 1.5*1.5 deg^2 area and allow us to investigate the overall molecular environment of the remnant. Some…

Solar and Stellar Astrophysics · Physics 2014-05-29 Yang Su , Min Fang , Ji Yang , Ping Zhou , Yang Chen

Recently, the LHAASO Collaboration reported the first very-high-energy gamma-ray catalog, containing 90 TeV sources. Among these sources, 1LHAASO J1929+1846u is located 0.3$^\circ$ west of SNR G54.1+0.3 and also lies within a $+53 \,…

High Energy Astrophysical Phenomena · Physics 2025-04-09 Yihan Shi , Yudong Cui , Lili Yang

Context. While searching the NRAO VLA Sky Survey (NVSS) for diffuse radio emission, we have serendipitously discovered extended radio emission close to the Galactic plane. The radio morphology suggests the presence of a previously unknown…

High Energy Astrophysical Phenomena · Physics 2014-09-05 F. de Gasperin , C. Evoli , M. Bruggen , A. Hektor , M. Cardillo , P. Thorman , W. A. Dawson , C. B. Morrison

G213.0$-$0.6 is a faint extended source situated in the anti-center region of the Galactic plane. It has been classified as a shell-type supernova remnant (SNR) based on its shell-like morphology, steep radio continuum spectrum, and high…

Astrophysics of Galaxies · Physics 2023-11-21 X. Y. Gao , C. J. Wu , X. H. Sun , W. Reich , J. L. Han

M33 contains a large number of emission nebulae identified as supernova remnants (SNRs) based on the high [S II]:Ha ratios characteristic of shocked gas. Using Chandra data from the ChASeM33 survey with a 0.35-2 keV sensitivity of about 2 x…

Recent ASCA observations of G347.3-0.5, an SNR discovered in the ROSAT All-Sky Survey, reveal nonthermal emission from a region along the northwestern shell (Koyama et al. 1997). Here we report on new pointed ASCA observations of G347.3-.5…