Observation of multi-Tev diffuse gamma rays from the galactic plane with the Tibet air shower array

	Observation of multi-Tev diffuse gamma rays from the galactic plane with the Tibet air shower array
	Amenomori, M ; Ayabe, S ; Cui, SH ; Ding, LK ; Ding, XH ; Feng, CF ; Feng, ZY ; Fu, Y ; Gao, XY ; Geng, QX
刊名	ASTROPHYSICAL JOURNAL
	2002-12-01
卷号	580 页码:887-895
关键词	acceleration of particles cosmic rays Galaxy : disk ISM : general
ISSN号	0004-637X
英文摘要	Data from the Tibet III air shower array (with energies around 3 TeV) and from the Tibet II array (with energies around 10 TeV) have been searched for diffuse gamma rays from the Galactic plane. These arrays have an angular resolution of about 0.degrees9. The sky regions searched are the inner Galaxy, 20degrees less than or equal to l less than or equal to 55degrees, and outer Galaxy, 140 degrees l less than or equal to 225degrees, and \b\ less than or equal to 2degrees or less than or equal to 5degrees. No significant Galactic-plane gamma-ray excess was observed. The 99% confidence level upper limits for gamma-ray intensity obtained are (for \b\ less than or equal to 2degrees) 1.1 x 10(-15) cm(-2) s(-1) sr(-1) MeV-1 at 3 TeV and 4.1 x 10(-17) cm(-2) s(-1) sr(-1) MeV-1 at 10 TeV for the inner Galaxy, and 3.6 x 10(-16) cm(-2) s(-1) sr(-1) MeV-1 at 3 TeV and 1.3 x 10(-17) cm(-2) s(-1) sr(-1) MeV-1 at 10 TeV for the outer Galaxy, assuming a differential spectral index of 2.4. The upper limits are significant in the multi-TeV region when compared to those from Cerenkov telescopes in the lower energy region and other air shower arrays in the higher energy region; however, the results are not sufficient to rule out the inverse Compton model with a source electron spectral index of 2.0.
WOS关键词	INTERSTELLAR RADIATION-FIELD ; COSMIC-RAY ; SUPERNOVA-REMNANTS ; ENERGY-SPECTRA ; EMISSION ; ELECTRONS ; GALAXY ; SATELLITE ; SEARCH ; MATTER
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000179458300023
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/38312]
专题	中国科学院近代物理研究所
通讯作者	Amenomori, M
作者单位	1.Hirosaki Univ, Dept Phys, Hirosaki, Aomori 0368561, Japan 2.Saitama Univ, Dept Phys, Saitama 3388570, Japan 3.Chinese Acad Sci, Lab Cosm Ray & High Energy Astrophys, Inst High Energy Phys, Beijing 100039, Peoples R China 4.Tibet Univ, Dept Math & Phys, Lhasa 850000, Peoples R China 5.Shandong Univ, Dept Phys, Jinan 250100, Peoples R China 6.SW Jiaotong Univ, Inst Modern Phys, Chengdu 610031, Peoples R China 7.Yunnan Univ, Dept Phys, Kunming 650091, Peoples R China 8.Kanazawa Univ, Fac Engn, Yokohama, Kanagawa 2218686, Japan 9.Utsunomiya Univ, Fac Educ, Utsunomiya, Tochigi 3218505, Japan 10.Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2278582, Japan
推荐引用方式 GB/T 7714	Amenomori, M,Ayabe, S,Cui, SH,et al. Observation of multi-Tev diffuse gamma rays from the galactic plane with the Tibet air shower array[J]. ASTROPHYSICAL JOURNAL,2002,580:887-895.
APA	Amenomori, M.,Ayabe, S.,Cui, SH.,Ding, LK.,Ding, XH.,...&Zhang, XY.(2002).Observation of multi-Tev diffuse gamma rays from the galactic plane with the Tibet air shower array.ASTROPHYSICAL JOURNAL,580,887-895.
MLA	Amenomori, M,et al."Observation of multi-Tev diffuse gamma rays from the galactic plane with the Tibet air shower array".ASTROPHYSICAL JOURNAL 580(2002):887-895.