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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 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…

Astrophysics · Physics 2009-11-10 J. S. Lazendic , P. O. Slane , J. P. Hughes , Y. Chen , T. M. Dame

We report the discovery of up to 35 new supernova remnants (SNRs) from a 42 arcsec resolution 90cm multi-configuration Very Large Array survey of the Galactic plane covering 4.5 deg< l <22.0 deg and |b| < 1.25 deg. Archival 20cm, 11cm, and…

Astrophysics · Physics 2009-11-11 C. L. Brogan , J. D. Gelfand , B. M. Gaensler , N. E. Kassim , T. J. Lazio

We present far-infrared (FIR) spectroscopy of supernova remnants (SNRs) based on the archival data of the Infrared Space Observatory ($ISO$) taken with the Long Wavelength Spectrometer (LWS). Our sample includes previously unpublished…

Astrophysics of Galaxies · Physics 2021-11-24 Matthew J. Millard , Aravind P. Ravi , Jeonghee Rho , Sangwook Park

In this study we use MUSE Integral Field Spectroscopy (IFS), along with multi-line diagnostics, for the optical identification of Supernova Remnants (SNRs) in the galaxy NGC 7793. We find in total 238 SNR candidates, 225 of them new…

Astrophysics of Galaxies · Physics 2024-03-27 Maria Kopsacheili , Cristina Jiménez-Palau , Lluís Galbany , Panayotis Boumis , Raúl González-Díaz

We have imaged a 1 deg^2 field centered on the known Galactic supernova remnant (SNR) G11.2-0.3 at 74, 330, and 1465 MHz with the Very Large Array radio telescope (VLA) and 235 MHz with the Giant Metrewave Radio Telescope (GMRT). The 235,…

Our aim is to investigate and analyze the radio surface brightness to diameter ($\Sigma-D$) relation for recently detected, bright radio-continuum planetary nebulae (PNe) in the Magellanic Clouds (MC). We apply a Monte Carlo analysis in…

Cosmology and Nongalactic Astrophysics · Physics 2009-07-17 B. Vukotic , D. Urosevic , M. D. Filipovic , J. L. Payne

Narrow band images covering strong emission lines are efficient to survey supernova remnants (SNRs) in nearby galaxies. Using the narrow band images provided by the Local Group Galaxy Survey we searched for SNRs in M33. Culling the objects…

High Energy Astrophysical Phenomena · Physics 2015-06-22 Jong Hwan Lee , Myung Gyoon Lee

The study of supernova remnants (SNRs) is fundamental to understanding the chemical enrichment and magnetism in galaxies, including our own Milky Way. In an effort to understand the connection between the morphology of SNRs and the Galactic…

Astrophysics of Galaxies · Physics 2016-03-09 J. L. West , S. Safi-Harb , T. Jaffe , R. Kothes , T. L. Landecker , T. Foster

Shell-type supernova remnants (SNRs) exhibit correlations between radio surface brightness, SNR diameter, and ambient medium density. We investigate these correlations, to extract useful information about the typical evolutionary stage of…

High Energy Astrophysical Phenomena · Physics 2015-05-14 R. Bandiera , O. Petruk

Accurate distance measurements to supernova remnants (SNRs) are crucial for understanding their physical properties and evolution. We present a novel method that combines CO line observations with three-dimensional (3D) extinction maps to…

Astrophysics of Galaxies · Physics 2026-03-24 Zhe Zhang , Jun Li , Biwei Jiang , He Zhao , Fupeng Liu

We present a re-discovery of G278.94+1.35 as possibly one of the largest known Galactic supernova remnants (SNR) - that we name Diprotodon. While previously established as a Galactic SNR, Diprotodon is visible in our new EMU and GLEAM radio…

We present an XMM-Newton detection of two low radio surface brightness SNRs, G85.4+0.7 and G85.9-0.6, discovered with the Canadian Galactic Plane Survey (CGPS). High-resolution XMM-Newton images revealing the morphology of the diffuse…

Astrophysics · Physics 2009-11-13 M. S. Jackson , S. Safi-Harb , R. Kothes , T. Foster

We universally search for evidence of kinematic and spatial correlation of supernova remnant (SNR) and molecular cloud (MC) associations for nearly all SNRs in the coverage of the MWISP CO survey, i.e. 149 SNRs, 170 SNR candidates, and 18…

We carry out a comprehensive study of HI 21 cm line observations and $^{13}$CO line observations of 21 supernova remnants (SNRs). The aim of the study is to search for HI absorption features to obtain kinematic distances in a consistent…

Astrophysics of Galaxies · Physics 2018-08-29 S. Ranasinghe , D. A. Leahy

Supernova remnants (SNRs) were often discovered in radio surveys of the Galactic plane. Because of the surface-brightness limit of previous surveys, more faint or confused SNRs await discovery. The Sino-German $\lambda$6\ cm Galactic plane…

Astrophysics of Galaxies · Physics 2015-05-28 X. Y. Gao , X. H. Sun , J. L. Han , W. Reich , P. Reich , R. Wielebinski

We present direct images in the H$\alpha$ and [SII]$\lambda \lambda$6717,6731 $\text{\AA}$ lines of the Galactic Supernova Remnant G109.1-1.0 (CTB 109). We confirm that the filaments detected are the optical counterpart of the X-ray and…

Astrophysics of Galaxies · Physics 2017-09-26 M. Sánchez-Cruces , M. Rosado , I. Fuentes-Carrera , P. Ambrocio-Cruz

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

Supernova remnants (SNRs) in Local Group galaxies offer unique insights into the origin of different types of supernovae. In order to take full advantage of these insights, one must understand the intrinsic and environmental diversity of…

High Energy Astrophysical Phenomena · Physics 2016-11-07 Sumit K. Sarbadhicary , Carles Badenes , Laura Chomiuk , Damiano Caprioli , Daniel Huizenga