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We present an X-ray analysis on the Galactic supernova remnant (SNR) G298.6-0.0 with Suzaku. The X-ray image shows a center-filled structure inside the radio shell, implying this SNR is categorized as a mixed-morphology (MM) SNR. The…

High Energy Astrophysical Phenomena · Physics 2015-10-21 Aya Bamba , Makoto Sawada , Yuto Nakano , Yukikatsu Terada , John Hewitt , Robert Petre , Lorella Angelini

The supernova remnant (SNR) candidate G 116.6-26.1 is one of the few high Galactic latitude ($|b| > 15^o$) remnants detected so far in several wavebands. It was discovered recently in the SRG/eROSITA all-sky X-ray survey and displays also a…

High Energy Astrophysical Phenomena · Physics 2022-06-22 E. V. Palaiologou , I. Leonidaki , M. Kopsacheili

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

There are either a near kinematic distance of 5.5 kpc or a far distance of 8.8 kpc for a Galactic supernova remnant (SNR) G32.8$-$0.1 derived by using the rotation curve of the Galaxy. Here we make sure that the remnant distance is the…

High Energy Astrophysical Phenomena · Physics 2009-09-03 Jian-Wen Xu , Hui-Rong Zhang

G310.7-5.4 is a supernova remnant (SNR) candidate identified as a faint shell in the second epoch Molonglo Galactic Plane Survey (MGPS-2), but this has not been followed up with multi-wavelength observations until now. It is an example of…

In spite of their key role in galaxy evolution and several decades of observational efforts, the census of supernova remnants (SNRs) in our Galaxy remains incomplete. Theoretical predictions based on the local supernova rate estimate the…

High Energy Astrophysical Phenomena · Physics 2024-10-16 K. Tsalapatas , M. Arias , T. Shimwell , K. Rajwade , M. J. Hardcastle , A. Drabent

The investigation of extragalactic Supernova Remnants (SNRs) gives us the advantage of surmounting the challenges we are usually confronted with when observing Galactic SNRs, most notably Galactic extinction and distance uncertainties. At…

High Energy Astrophysical Phenomena · Physics 2017-01-30 I. Leonidaki

Supernova remnants (SNRs) arise from the interaction between the ejecta of a supernova (SN) explosion and the surrounding circumstellar and interstellar medium. Some SNRs, mostly nearby SNRs, can be studied in great detail. However, to…

High Energy Astrophysical Phenomena · Physics 2018-04-25 Knox S. Long

We have observed the Galactic supernova remnant G16.7+0.1 for 13 ks using the EPIC cameras aboard the XMM-Newton X-ray Observatory, producing the first X-ray image of the remnant. This composite radio remnant has a core radio flux density…

Astrophysics · Physics 2009-11-07 David J. Helfand , Marcel A. Agueros , E. V. Gotthelf

We present new radio images of the supernova remnant (SNR) CTA 1 at 1420 and 408 MHz, and in the 21 cm line of H I observed with the Dominion Radio Astrophysical Observatory Synthesis Telescope and at 1420 MHz observed with the Effelsberg…

High Energy Astrophysical Phenomena · Physics 2024-12-20 Tam Do , Roland Kothes , Alex S. Hill , Andrew Gray , Patricia Reich , Wolfgang Reich

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

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

G321.3-3.9 was first identified as a partial shell at radio frequencies a few decades ago. Although it continued to be observed, no additional studies were undertaken until recently. In this paper we present results from a large selection…

High Energy Astrophysical Phenomena · Physics 2024-10-16 S. Mantovanini , W. Becker , A. Khokhriakova , N. Hurley-Walker , G. E. Anderson , L. Nicastro

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

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

A 5$^{\circ}$ $\times$ 7$^{\circ}$ sky area containing two large radio structures of G203.1+6.6 and G206.7+5.9 with a size of about 2.5$^{\circ}$ and 3.5$^{\circ}$ respectively is scanned by using the L-band 19-beam receiver of the…

Astrophysics of Galaxies · Physics 2022-12-01 X. Y. Gao , W. Reich , X. H. Sun , H. Zhao , Tao Hong , Z. S. Yuan , P. Reich , J. L. Han

The youngest Galactic supernova remnant G1.9+0.3 shows a discrete feature between its radio and X-ray morphologies. The observed radio morphology features a single maximum in the north, while the X-ray observation shows two opposite 'ears'…

High Energy Astrophysical Phenomena · Physics 2023-01-20 Shaobo Zhang , Wenwu Tian , Mengfei Zhang , Hui Zhu , Xiaohong Cui

The synchrotron radio morphology of bilateral supernova remnants depends on the mechanisms of particle acceleration and on the viewing geometry. However, unlike X-ray and $\gamma$-ray morphologies, the radio emission does not depend on the…

High Energy Astrophysical Phenomena · Physics 2015-05-28 F. Bocchino , S. Orlando , M. Miceli , O. Petruk

We have carried out a study of the X-ray properties of the supernova remnant (SNR) population in M33 with XMM-Newton, comprising deep observations of 8 fields in M33 covering all of the area within the D$_{25}$ contours, and with a typical…

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