Multi-TeV gamma-ray flares from Markarian 421 in 2000 and 2001 observed with the Tibet air shower array

	Multi-TeV gamma-ray flares from Markarian 421 in 2000 and 2001 observed with the Tibet air shower array
	Amenomori, M ; Ayabe, S ; Cui, SW ; Ding, LK ; Ding, XH ; Feng, CF ; Feng, ZY ; Gao, XY ; Geng, QX ; Guo, HW
刊名	ASTROPHYSICAL JOURNAL
	2003-11-20
卷号	598 页码:242-249
关键词	BL Lacertae objects : individual (Markarian 421) gamma rays : observations
ISSN号	0004-637X
英文摘要	Several strong TeV gamma-ray flares were detected from Mrk 421 in the years 2000 and 2001 by the Tibet III air shower array at a level of statistical significance of 5.1 sigma. Mrk 421 was unprecedentedly active at X-ray and TeV gamma-ray energies during this period, and a positive correlation was found between the change of the all-sky monitor Rossi X-Ray Timing Explorer X-ray flux and the Tibet TeV gamma-ray flux. When a power-law energy spectrum for gamma-rays from this source is assumed, the spectral index is calculated to be -3.24 +/- 0.69 at the most active phase in 2001. The spectral index observed by the Tibet air shower array is consistent with those obtained via imaging air Cerenkov telescopes.
WOS关键词	ACTIVE GALAXY MARKARIAN-421 ; ENERGY-SPECTRUM ; HELIUM SPECTRA ; CRAB-NEBULA ; UPPER LIMIT ; RADIATION ; EMISSION ; PHOTONS ; TELESCOPE ; MKN-421
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	UNIV CHICAGO PRESS
WOS记录号	WOS:000186688700018
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/38415]
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, 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.Kanagawa Univ, Fac Engn, Yokohama, Kanagawa 2218686, Japan 9.Utsunomiya Univ, Fac Educ, Utsunomiya, Tochigi 3218505, Japan 10.Konan Univ, Dept Phys, Kobe, Hyogo 6588501, Japan
推荐引用方式 GB/T 7714	Amenomori, M,Ayabe, S,Cui, SW,et al. Multi-TeV gamma-ray flares from Markarian 421 in 2000 and 2001 observed with the Tibet air shower array[J]. ASTROPHYSICAL JOURNAL,2003,598:242-249.
APA	Amenomori, M.,Ayabe, S.,Cui, SW.,Ding, LK.,Ding, XH.,...&Zhou, XX.(2003).Multi-TeV gamma-ray flares from Markarian 421 in 2000 and 2001 observed with the Tibet air shower array.ASTROPHYSICAL JOURNAL,598,242-249.
MLA	Amenomori, M,et al."Multi-TeV gamma-ray flares from Markarian 421 in 2000 and 2001 observed with the Tibet air shower array".ASTROPHYSICAL JOURNAL 598(2003):242-249.