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相关论文: Fermi LAT Observation of Supernova Remnant HB9

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52 months of accumulated observations by the Large Area Telescope onboard the Fermi Gamma-ray Space Telescope in the region of the supernova remnants G296.5+10.0 (PKS 1209-51/52) and G166.0+4.3 (VRO 42.05.01) are analyzed. GeV emission is…

高能天体物理现象 · 物理学 2015-06-16 Miguel Araya

We present the analysis of Fermi Large Area Telescope (LAT) $\gamma$-ray observations of HB~21 (G89.0+4.7). We detect significant $\gamma$-ray emission associated with the remnant: the flux >100 MeV is…

高能天体物理现象 · 物理学 2015-06-17 G. Pivato , J. Hewitt , L. Tibaldo , F. Acero , J. Ballet , T. J. Brandt , F. de Palma , F. Giordano , G. H. Janssen , G. Johannesson , D. A. Smith

We present an analysis of the gamma-ray data obtained with the Large Area Telescope (LAT) onboard the Fermi Gamma-ray Space Telescope in the direction of SNR W49B (G43.3-0.2). A bright unresolved gamma-ray source detected at a significance…

高能天体物理现象 · 物理学 2015-05-19 LAT Collaboration

We report on gamma-ray observations of the supernova remnant (SNR) RX J0852.0-4622 with the Large Area Telescope (LAT) aboard the Fermi Gamma-ray Space Telescope. In the Fermi LAT data, we find a spatially extended source at the location of…

高能天体物理现象 · 物理学 2011-10-06 T. Tanaka , A. Allafort , J. Ballet , S. Funk , F. Giordano , J. Hewitt , M. Lemoine-Goumard , H. Tajima , O. Tibolla , Y. Uchiyama

Gamma-ray emission provides constraints on the non-thermal radiation processes at play in astrophysical particle accelerators. This allows both the nature of accelerated particles and the maximum energy that they can reach to be determined.…

高能天体物理现象 · 物理学 2023-11-06 Pauline Chambery , Marianne Lemoine-Goumard , Armelle Jardin-Blicq , Atreyee Sinha , J. Eagle

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…

高能天体物理现象 · 物理学 2021-05-21 Yunchuan Xiang , Zejun Jiang

A new $\gamma$-ray source with a significance level of approximately 5$\sigma$ was reported in the region of SNR G272.2-3.2, analysing the approximately 12.4 years of observation data from the Fermi Large Area Telescope (Fermi-LAT). Its…

高能天体物理现象 · 物理学 2021-09-08 Yun-Chuan Xiang , Ze-Jun Jiang

We first report GeV $\gamma$-ray emission from supernova remnant (SNR) G15.9+0.2 in this work. The results show that its power-law spectral index is 2.94$\pm$0.25 with a 6.47$\sigma$ significance level, and the $\gamma$-ray emission can be…

高能天体物理现象 · 物理学 2021-10-27 Yunchuan Xiang , Zejun Jiang , Mengyao Tang

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…

高能天体物理现象 · 物理学 2021-04-21 Yunchuan Xiang , Zejun Jiang , Yunyong Tang

HB9 (G160.9+2.6) is a mixed-morphology Galactic supernova remnant (SNR) at a distance of $\sim$0.6 kpc. Previous analyses revealed recombining plasma emission in X-rays and an expanding shell structure in HI and CO emission, which were…

高能天体物理现象 · 物理学 2021-12-17 Tülün Ergin , Lab Saha , Hidetoshi Sano , Aytap Sezer , Ryo Yamazaki , Pratik Majumdar , Yasuo Fukui

We analyze 3.5 years of public Fermi/LAT data around the position of the supernova remnant HB 21, where four point-like sources from the 2nd Fermi/LAT catalog are located. We determine that the gamma-ray source is produced by a single…

高能天体物理现象 · 物理学 2012-10-01 Ignasi Reichardt , Emma de Oña Wilhelmi , Javier Rico , Rui-zhi Yang

With the 15 yrs of Pass 8 data recorded by the {\em Fermi} Large Area Telescope, we report the detection of an extended gigaelectronvolt emission component with a 68\% containment radius of $0^{\circ}\!.85$, which is spatially associated…

高能天体物理现象 · 物理学 2024-11-01 Xiaolei Guo , Xi Liu

We present an analysis of gamma-ray data obtained with the Large Area Telescope (LAT) onboard the Fermi Gamma-ray Space Telescope in the region around SNR S147 (G180.0-1.7). A spatially extended gamma-ray source detected in an energy range…

We present a detailed analysis of the GeV gamma-ray emission toward the supernova remnant (SNR) G8.7-0.1 with the Large Area Telescope (LAT) onboard the \emph{Fermi} Gamma-ray Space Telescope. An investigation of the relationship among…

高能天体物理现象 · 物理学 2015-05-30 LAT Collaboration

The discovery of bright gamma-ray emission coincident with supernova remnant (SNR) W51C is reported using the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope. W51C is a middle-aged remnant (~10^4 yr) with intense…

高能天体物理现象 · 物理学 2012-08-27 Fermi LAT collaboration

We present the analysis of Fermi Large Area Telescope (LAT) {\gamma}-ray observations of HB 21, a mixed-morphology supernova remnant. Such supernova remnants are characterized by an interior thermal X-ray plasma, surrounded by a wider…

高能天体物理现象 · 物理学 2019-08-14 G. Pivato , J. W. Hewitt , L. Tibaldo

We report on observations of the supernova remnant Cassiopeia A in the energy range from 100 MeV to 100 GeV using 44 months of observations from the Large Area Telescope on board the Fermi Gamma-ray Space Telescope. We perform a detailed…

高能天体物理现象 · 物理学 2015-06-17 Y. Yuan , S. Funk , G. Jóhannesson , J. Lande , L. Tibaldo , Y. Uchiyama

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…

高能天体物理现象 · 物理学 2023-09-13 Yuliang Xin , Xiaolei Guo

We present detailed analysis of the two gamma-ray sources,1FGL J1801.3-2322c and 1FGL J1800.5-2359c,that have been found toward the supernova remnant(SNR) W28 with the Large Area Telescope(LAT) on board the Fermi Gamma-ray Space…

高能天体物理现象 · 物理学 2016-04-13 LAT Collaboration , A. A. Abdo

Analysis of data from the Fermi Large Area Telescope (LAT) in the region of the supernova remnant G78.2+2.1 reveals an excess at the position of the TeV source VER J2019+407. The GeV source is extended with a hard spectrum and it is likely…

高能天体物理现象 · 物理学 2017-01-10 Miguel Araya , Nissim Fraija
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