English
Related papers

Related papers: Some statistics of Galactic SNRs

200 papers

We present new radio observations of the recently identified, young Galactic supernova remnant (SNR) RX J0852.0-4622 (G266.2-01.2) made at 1.40 GHz with a resolution of 14.9 arcmin. These results, along with other radio observations from…

Astrophysics · Physics 2007-05-23 A. R. Duncan , D. A. Green

We present a spatially resolved study of the kinematical properties of known supernova remnants (SNRs) in the nearest galaxies of the SIGNALS survey, namely NGC 6822 (one object) and M33 (163 objects), based on data obtained with the…

The radio surface brightness-to-diameter ({\Sigma} - D) relation for supernova remnants (SNRs) in the starburst galaxy M82 is analyzed in a statistically more robust manner than in the previous studies that mainly discussed sample quality…

Cosmology and Nongalactic Astrophysics · Physics 2012-01-27 D. Urosevic , B. Vukotic , B. Arbutina , M. Sarevska

Supernovae are the dominant source of chemical enrichment of galaxies, and they are an important source of energy to heat the interstellar medium and accelerate cosmic rays. Our knowledge of supernovae in the Milky Way is based mostly on…

Astrophysics of Galaxies · Physics 2021-04-14 Sill Verberne , Jacco Vink

We analyze the influence of fractal structure of the interstellar matter (ISM) density on the parameter values for the radio surface brightness to diameter ($\Sigma-D$) relation for supernovae remnants (SNRs). We model a dense ISM as a…

High Energy Astrophysical Phenomena · Physics 2016-06-09 Petar Kostić , Branislav Vukotić , Dejan Urošević , Bojan Arbutina , Tijana Prodanović

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

We briefly reviewed some recent progress on the studies of supernova remnants (SNRs), including the radio SNRs (the structure, polarization, spectrum etc.), observational characteristics of X-ray emission, pulsar wind nebulae (PWNe),…

High Energy Astrophysical Phenomena · Physics 2009-09-03 Jian-Wen Xu

The time-dependent nonlinear kinetic theory for cosmic ray (CR) acceleration in supernova remnants (SNRs) is applied studying the properties of the synchrotron emission from SNRs, in particular, the surface brightness-diameter ($\Sigma-D$)…

Astrophysics · Physics 2009-11-10 E. G. Berezhko , H. J. Völk

The Parkes-MIT-NRAO (PMN) radio survey has been used to generate a quasi all-sky study of Galactic Supernova Remnants (SNRs) at a common frequency of 4.85 GHz. We present flux densities estimated for the sample of 110 Southern Galactic SNRs…

Astrophysics · Physics 2009-11-13 M. Stupar , M. D. Filipovic , Q. A. Parker , G. L. White , T. G. Pannuti , P. A. Jones

Two new equations of motion for a supernova remnant (SNR) are derived in the framework of energy conservation for the thin-layer approximation. The first one is based on an inverse square law for the surrounding density and the second one…

High Energy Astrophysical Phenomena · Physics 2021-06-10 Lorenzo Zaninetti

Context. While over 1000 supernova remnants (SNRs) are estimated to exist in the Milky Way, only less than 400 have been found to date. In the context of this apparent deficiency, more than 150 SNR candidates were recently identified in the…

New generational very-high-energy telescope arrays have been detecting more than 120 TeV {\gamma}-ray sources. Multi-wavelength observations on these Gamma-ray sources have proven to be robust in shedding light on their nature. The coming…

High Energy Astrophysical Phenomena · Physics 2013-02-04 Wenwu Tian , Jianli Zhang

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

Context. The properties of the population of Galactic supernova remnants (SNRs) are essential to our understanding of the dynamics of the interstellar medium (ISM) in the Milky Way. However, the completeness of the catalog of Galactic SNRs…

High resolution and sensitivity large-scale radio surveys of the Milky Way are critical in the discovery of very low surface brightness supernova remnants (SNRs), which may constitute a significant portion of the Galactic SNRs still…

Astrophysics of Galaxies · Physics 2014-07-02 Stephanie Gerbrandt , Tyler J. Foster , Roland Kothes , Joern Geisbuesch , Albert Tung

The surface brightness diameter relationship for supernovae remnants (SNRs) is explained by adopting a model of direct conversion of the flux of kinetic energy into synchrotron luminosity. Two laws of motion are adopted, a power law model…

Astrophysics of Galaxies · Physics 2012-01-26 L. Zaninetti

Recent studies using 21 cm HI line and $^{13}$CO line observations in the inner part of the Galaxy have resulted in new distances for 30 Galactic supernova remnants (SNRs). 15 of those remnants have observed X-ray spectra, for which…

Astrophysics of Galaxies · Physics 2018-10-17 D. A. Leahy , S. Ranasinghe

We present a new selected sample of 69 Galactic supernova remnants (SNRs) for calibration of radio $\Sigma-D$ relation at 1 GHz. Calibrators with the most reliable distances were selected through an extensive literature search. The…

High Energy Astrophysical Phenomena · Physics 2025-10-07 D. Urošević , B. Vukotić , M. Anđelić , N. Mladenović

A revised catalogue of 274 Galactic supernova remnants (SNRs) is presented, along with some simple statistics of their parameters. It is shown that the remnants that have recently been identified are generally faint, as is expected from the…

High Energy Astrophysical Phenomena · Physics 2009-09-14 D. A. Green

We have carried out high-resolution near-infrared spectroscopic observations toward 16 Galactic supernova remnants (SNRs) showing strong H$_{2}$ emission features. A dozen bright H$_{2}$ emission lines are clearly detected for individual…

Astrophysics of Galaxies · Physics 2020-11-25 Yong-Hyun Lee , Bon-Chul Koo , Jae-Joon Lee