OBSERVATION OF THE TeV GAMMA-RAY SOURCE MGRO J1908+06 WITH ARGO-YBJ

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	OBSERVATION OF THE TeV GAMMA-RAY SOURCE MGRO J1908+06 WITH ARGO-YBJ
	ARGO-YBJ Collaboration
刊名	ASTROPHYSICAL JOURNAL
	2012
卷号	760 期号:2
关键词	GALACTIC SOURCES CYGNUS REGION SOURCE LIST MILAGRO EMISSION DETECTOR HESS CALIBRATION PLANE
通讯作者	Bartoli, B (reprint author), Univ Naples Federico II, Dipartimento Fis, Complesso Univ Mt St Angelo,Via Cinthia, I-80126 Naples, Italy.
英文摘要	The extended gamma-ray source MGRO J1908+06, discovered by the Milagro air shower detector in 2007, has been observed for similar to 4 years by the ARGO-YBJ experiment at TeV energies, with a statistical significance of 6.2 standard deviations. The peak of the signal is found at a position consistent with the pulsar PSR J1907+0602. Parameterizing the source shape with a two-dimensional Gauss function, we estimate an extension of sigma(ext) = 0 degrees.49 +/- 0 degrees.22, which is consistent with a previous measurement by the Cherenkov Array H.E.S.S. The observed energy spectrum is dN/dE = 6.1 +/- 1.4 x 10(-13) (E/4 TeV)(-2.54 +/- 0.36) photons cm(-2) s(-1) TeV-1, in the energy range of similar to 1-20 TeV. The measured gamma-ray flux is consistent with the results of the Milagro detector, but is similar to 2-3 times larger than the flux previously derived by H.E.S.S. at energies of a few TeV. The continuity of the Milagro and ARGO-YBJ observations and the stable excess rate observed by ARGO-YBJ and recorded in four years of data support the identification of MGRO J1908+06 as the steady powerful TeV pulsar wind nebula of PSR J1907+0602, with an integrated luminosity over 1 TeV similar to 1.8 times the luminosity of the Crab Nebula.
学科主题	Astronomy & Astrophysics
类目[WOS]	Astronomy & Astrophysics
收录类别	SCI
语种	英语
WOS记录号	WOS:000311217000014
公开日期	2016-02-25
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/213383]
专题	高能物理研究所_粒子天体物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	ARGO-YBJ Collaboration. OBSERVATION OF THE TeV GAMMA-RAY SOURCE MGRO J1908+06 WITH ARGO-YBJ[J]. ASTROPHYSICAL JOURNAL,2012,760(2).
APA	ARGO-YBJ Collaboration.(2012).OBSERVATION OF THE TeV GAMMA-RAY SOURCE MGRO J1908+06 WITH ARGO-YBJ.ASTROPHYSICAL JOURNAL,760(2).
MLA	ARGO-YBJ Collaboration."OBSERVATION OF THE TeV GAMMA-RAY SOURCE MGRO J1908+06 WITH ARGO-YBJ".ASTROPHYSICAL JOURNAL 760.2(2012).