KMS of Xinjiang Astronomical Observatory, CAS
| GeV gamma-ray EMISSION DETECTED BY FERMI-LAT PROBABLY ASSOCIATED WITH THE THERMAL COMPOSITE SUPERNOVA REMNANT KESTEVEN 41 IN A MOLECULAR ENVIRONMENT | |
| Liu, Bing1; Chen, Yang1,2; Zhang, Xiao1; Zhang, Gao-Yuan1; Xing, Yi3; Pannuti, Thomas G.4 | |
| 2015-08-01 | |
| Source Publication | Astrophysical Journal
 |
| ISSN | 0004-637X |
| Volume | 809Issue:1Pages:102 |
| Abstract | Hadronic emission from supernova remnant (SNR)-molecular cloud (MC) association systems has been widely regarded as a probe of shock-accelerated cosmic-ray protons. Here, we report on the detection of gamma-ray emission source with a significance of 24 sigma in 0.2-300 GeV, projected to lie to the northwest of the thermal composite SNR Kesteven 41, using 5.6 years of Fermi-Large Area Telescope (LAT) observation data. No significant long-term variability in the energy range 0.2-300 GeV is detected around this source. The 3 sigma error circle, 0 degrees.09 in radius, covers the 1720 MHz OH maser and is essentially consistent with the location of the V-LSR similar to -50 km s(-1) MC with which the SNR interacts. The source emission has an exponential cutoff power-law spectrum with a photon index of 1.9 +/- 0.1 and a cutoff energy of 4.0 +/- 0.9 GeV, and the corresponding 0.2-300 GeV luminosity is similar to 1.3 x 10(36) erg s(-1) at a distance of 12 kpc. There is no radio pulsar in the 3 sigma circle responsible for the high gamma-ray luminosity. While the inverse Compton scattering scenario would lead to difficulty in the electron energy budget, the source emission can naturally be explained by the hadronic interaction between the relativistic protons accelerated by the shock of SNR Kesteven 41 and the adjacent northwestern MC. In this paper, we present a list of Galactic thermal composite SNRs detected at GeV gamma-ray energies by Fermi-LAT. |
| Keyword | Acceleration Of Particles Gamma Rays: Ism Ism: Individual Objects (Kes 41) Ism: Supernova Remnants |
| Subtype | Article |
| DOI | 10.1088/0004-637x/809/1/102 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | large-area telescope ; accumulated diffusive protons ; cosmic-rays ; space-telescope ; source catalog ; rcw 86 ; kes 17 ; ic 443 ; clouds ; g337.8-0.1 |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000361653500102 |
| Project Number | 11233001 ; 11403075 ; 2015CB857100 ; 20120091110048 |
| Funding Organization | NSFC ; 973 Program ; Educational Ministry of China ; 985 Project of NJU ; Advanced Discipline Construction Project of Jiangsu Province |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/1605 |
| Collection | 110米口径全可动射电望远镜（QTT）_110米大口径全可动射电望远镜关键技术研究（973项目）_课题1：大样本射电天体的观测和前沿问题研究 |
| Corresponding Author | Chen, Yang |
| Affiliation | 1.Department of Astronomy, Nanjing University, 163 Xianlin Avenue, Nanjing 210023, China 2.Key Laboratory of Modern Astronomy and Astrophysics, Nanjing University, Ministry of Education, Nanjing 210093, China 3.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences,80 Nandan Road, Shanghai 200030, China 4.Space Science Center, Department of Earth and Space Sciences, Morehead State University, 235 Martindale Drive, Morehead, KY 40351, USA |
| Recommended Citation GB/T 7714 | Liu, Bing,Chen, Yang,Zhang, Xiao,et al. GeV gamma-ray EMISSION DETECTED BY FERMI-LAT PROBABLY ASSOCIATED WITH THE THERMAL COMPOSITE SUPERNOVA REMNANT KESTEVEN 41 IN A MOLECULAR ENVIRONMENT[J]. Astrophysical Journal,2015,809(1):102. |
| APA | Liu, Bing,Chen, Yang,Zhang, Xiao,Zhang, Gao-Yuan,Xing, Yi,&Pannuti, Thomas G..(2015).GeV gamma-ray EMISSION DETECTED BY FERMI-LAT PROBABLY ASSOCIATED WITH THE THERMAL COMPOSITE SUPERNOVA REMNANT KESTEVEN 41 IN A MOLECULAR ENVIRONMENT.Astrophysical Journal,809(1),102. |
| MLA | Liu, Bing,et al."GeV gamma-ray EMISSION DETECTED BY FERMI-LAT PROBABLY ASSOCIATED WITH THE THERMAL COMPOSITE SUPERNOVA REMNANT KESTEVEN 41 IN A MOLECULAR ENVIRONMENT".Astrophysical Journal 809.1(2015):102. |
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| File Name/Size | DocType | Version | Access | License | ||
| Liu_2015_ApJ_809_102（602KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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