GeV gamma-ray EMISSION DETECTED BY FERMI-LAT PROBABLY ASSOCIATED WITH THE THERMAL COMPOSITE SUPERNOVA REMNANT KESTEVEN 41 IN A MOLECULAR ENVIRONMENT

doi:10.1088/0004-637x/809/1/102

CORC > 新疆天文台 > 研究单元未命名 > 110米口径全可动射电望远镜（SmART） > 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

	GeV gamma-ray EMISSION DETECTED BY FERMI-LAT PROBABLY ASSOCIATED WITH THE THERMAL COMPOSITE SUPERNOVA REMNANT KESTEVEN 41 IN A MOLECULAR ENVIRONMENT
	Pannuti, Thomas G.4; Xing, Yi 1; Zhang, Gao-Yuan 2; Zhang, Xiao 2; Chen, Yang 2,3; Liu, Bing 2
刊名	Astrophysical Journal
	2015-08-01
卷号	809 期号:1 页码:102
关键词	Acceleration Of Particles Gamma Rays: Ism Ism: Individual Objects (Kes 41) Ism: Supernova Remnants
ISSN号	0004-637X
DOI	10.1088/0004-637x/809/1/102
文献子类	Article
英文摘要	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.
WOS关键词	large-area telescope ; accumulated diffusive protons ; cosmic-rays ; space-telescope ; source catalog ; rcw 86 ; kes 17 ; ic 443 ; clouds ; g337.8-0.1
WOS研究方向	Astronomy & Astrophysics
项目编号	11233001 ; 11403075 ; 2015CB857100 ; 20120091110048
语种	英语
WOS记录号	WOS:000361653500102
资助机构	NSFC ; 973 Program ; Educational Ministry of China ; 985 Project of NJU ; Advanced Discipline Construction Project of Jiangsu Province
内容类型	期刊论文
源URL	[http://ir.xao.ac.cn/handle/45760611-7/1605]
专题	新疆天文台_110米口径全可动射电望远镜（SmART）_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
通讯作者	Chen, Yang
作者单位	1.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences,80 Nandan Road, Shanghai 200030, China 2.Department of Astronomy, Nanjing University, 163 Xianlin Avenue, Nanjing 210023, China 3.Key Laboratory of Modern Astronomy and Astrophysics, Nanjing University, Ministry of Education, Nanjing 210093, China 4.Space Science Center, Department of Earth and Space Sciences, Morehead State University, 235 Martindale Drive, Morehead, KY 40351, USA
推荐引用方式 GB/T 7714	Pannuti, Thomas G.,Xing, Yi,Zhang, Gao-Yuan,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	Pannuti, Thomas G.,Xing, Yi,Zhang, Gao-Yuan,Zhang, Xiao,Chen, Yang,&Liu, Bing.(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	Pannuti, Thomas G.,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.