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Related papers: Fermi-LAT Observations and A Broadband Study of Su…

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In this paper, we report the first extended GeV $\gamma$-ray emission, at a significant level of $\sim$ 8.13$\sigma$, from the region of the supernova remnant (SNR) SNR G317.3-0.2 by analyzing $\sim$ 12.2 years of Fermi Large Area Telescope…

High Energy Astrophysical Phenomena · Physics 2021-04-21 Yunchuan Xiang , Zejun Jiang , Yunyong Tang

The middle-aged supernova remnant (SNR) W51C is an interesting source for the interaction of the shell with a molecular cloud. The shell emits intense radio synchrotron photons, and high-energy gamma-rays from the remnant have been detected…

High Energy Astrophysical Phenomena · Physics 2015-05-18 Jun Fang , Li Zhang

In this paper we report on the detection of $\gamma$-ray emission coincident with the Galactic supernova remnant Kesteven 79 (Kes 79). We analysed approximately 52 months of data obtained with the Large Area Telescope (LAT) on board the…

High Energy Astrophysical Phenomena · Physics 2015-06-18 Katie Auchettl , Patrick Slane , Daniel Castro

We analyze more than 15 years of the \gr\ data, obtained with the Large Area Telescope (LAT) onboard {\it the Fermi Gamma-ray Space Telescope (Fermi)}, for the region of the young supernova remnant (SNR) RCW~103, since the nearby source…

High Energy Astrophysical Phenomena · Physics 2024-06-28 Yi Xing , Zhongxiang Wang , Dong Zheng

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

Recent observations by the Large Area Telescope (LAT) onboard the Fermi satellite have revealed bright gamma-ray emission from middle-aged supernova remnants (SNRs) inside our Galaxy. These remnants, which also possess bright non-thermal…

High Energy Astrophysical Phenomena · Physics 2015-06-17 Shiu-Hang Lee , Daniel J. Patnaude , John C. Raymond , Shigehiro Nagataki , Patrick O. Slane , Donald C. Ellison

We report observation of the supernova remnant IC443 (G189.1+3.0) with the Fermi Gamma-ray Space Telescope Large Area Telescope (LAT) in the energy band between 200MeV and 50GeV. IC443 is a shell-type supernova remnant with mixed morphology…

High Energy Astrophysical Phenomena · Physics 2015-05-18 A. A. Abdo

A novel $\gamma$-ray supernova remnant (SNR) G206.9+2.3 is first reported in this study. We arrived at this conclusion after analyzing 12.4 years of observation data of the Fermi Large Area Telescope (Fermi-LAT). The photon flux of the…

High Energy Astrophysical Phenomena · Physics 2021-05-21 Yunchuan Xiang , Zejun Jiang

Using $5.4$ year Fermi-LAT data, we report the detection of GeV $\gamma$-ray emission from the shell-type supernova remnant RCW 86 (G315.4-2.3) with a significance of $\sim5.1\sigma$. The data slightly favors an extended emission of this…

High Energy Astrophysical Phenomena · Physics 2014-06-18 Qiang Yuan , Xiaoyuan Huang , Siming Liu , Bing Zhang

We investigate the nature of the accelerated particles responsible for the production of the gamma-ray emission observed from the middle-aged supernova remnant (SNR) HB 21. The analysis of more than nine years of Fermi LAT data leads to the…

High Energy Astrophysical Phenomena · Physics 2019-02-19 L. Ambrogi , R. Zanin , S. Casanova , E. De Ona Wilhelmi , G. Peron , F. Aharonian

CTB 80 (G69.0+2.7) is a relatively old (50--80 kyr) supernova remnant (SNR) with a complex radio morphology showing three extended radio arms and a radio and X-ray nebula near the location of the pulsar PSR B1951+32. We report on a study of…

High Energy Astrophysical Phenomena · Physics 2021-01-20 M. Araya , C. Herrera

We present observations of the young Supernova remnant (SNR) RX J1713.7-3946 with the Fermi Large Area Telescope (LAT). We clearly detect a source positionally coincident with the SNR. The source is extended with a best-fit extension of…

High Energy Astrophysical Phenomena · Physics 2011-05-25 A. A. Abdo , Fermi LAT Collaboration

We report the extended GeV $\gamma$-ray emission around the high Galactic latitude supernova remnant (SNR) DA 530 with the PASS 8 data recorded by the Fermi Large Area Telescope (Fermi-LAT). The $\gamma$-ray spectrum in the energy range of…

High Energy Astrophysical Phenomena · Physics 2023-09-13 Yuliang Xin , Xiaolei Guo

Supernova remnant (SNR) detection along the Galactic plane poses a number of challenges. The SNR G309.8+00.0 lies exactly on the Galactic plane, with its center coinciding with galactic latitude (b)=0 deg. In this paper we report the first…

High Energy Astrophysical Phenomena · Physics 2024-10-01 Miltiadis Michailidis , Gerd Pühlhofer , Andrea Santangelo , Manami Sasaki , Werner Becker

While supernova remnants (SNRs) are widely thought to be powerful accelerators, evidence comes largely from a small number of well-studied cases. Here we systematically determine the gamma-ray emission from all known Galactic SNRs,…

High Energy Astrophysical Phenomena · Physics 2019-08-13 J. W. Hewitt , F. Acero , T. J. Brandt , J. Cohen , F. de Palma , F. Giordano

While supernova remnants (SNRs) are widely thought to be powerful cosmic-ray accelerators, indirect evidence comes from a small number of well-studied cases. Here we systematically determine the gamma-ray emission detected by the Fermi…

High Energy Astrophysical Phenomena · Physics 2015-07-14 F. de Palma , T. J. Brandt , J. W. Hewitt , G. Johannesson , L. Tibaldo

We present an analysis of the gamma-ray measurements by the Large Area Telescope(LAT) onboard the \textit{Fermi Gamma-ray Space Telescope} in the region of the supernova remnant(SNR) Cygnus Loop(G74.0$-$8.5). We detect significant gamma-ray…

High Energy Astrophysical Phenomena · Physics 2015-05-30 H. Katagiri , L. Tibaldo , J. Ballet , F. Giordano , I. A. Grenier , T. A. Porter , M. Roth , O. Tibolla , Y. Uchiyama , R. Yamazaki

We present the analysis of the X-ray Multi-Mirror Mission (XMM-Newton) European Photon Imaging Camera (EPIC) data of the Galactic supernova remnant (SNR) CTB 109 (G109.1-1.0). CTB 109 is associated with the anomalous X-ray pulsar (AXP) 1E…

Astrophysics · Physics 2009-11-10 M. Sasaki , P. P. Plucinsky , T. J. Gaetz , R. K. Smith , R. J. Edgar , P. O. Slane

We report the likely GeV $\gamma$-ray emission from the composite supernova remnant (SNR) COMP G327.1+1.1 by analyzing $\sim$12.2 years of the \textit{Fermi} Large Area Telescope (\textit{Fermi}-LAT) Pass 8 data. We found the features of…

High Energy Astrophysical Phenomena · Physics 2021-05-19 Yunchuan Xiang , Yi Xing , Zejun Jiang

We report the detection of gamma-ray emission coincident with four supernova remnants (SNRs) using data from the Large Area Telescope on board the Fermi Gamma-ray Space Telescope. G349.7+0.2, CTB 37A, 3C 391 and G8.7-0.1 are supernova…

High Energy Astrophysical Phenomena · Physics 2015-05-18 Daniel Castro , Patrick Slane