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arXiv 0705.0707astro-ph
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用Milagro对银道面进行巡天得到的TeV Gamma-Ray源

TeV Gamma-Ray Sources from a Survey of the Galactic Plane with Milagro

A. A. Abdo, B. Allen, D. Berley, S. Casanova, C. Chen, D. G. Coyne, B. L. Dingus, R. W. Ellsworth, L. Fleysher, R. Fleysher, M. M. Gonzalez, J. A. Goodman, E. H… 展开作者

A. A. Abdo, B. Allen, D. Berley, S. Casanova, C. Chen, D. G. Coyne, B. L. Dingus, R. W. Ellsworth, L. Fleysher, R. Fleysher, M. M. Gonzalez, J. A. Goodman, E. Hays, C. M. Hoffman, B. Hopper, P. H. Huntemeyer, B. E. Kolterman, C. P. Lansdell, J. T. Linnemann, J. E. McEnery, A. I. Mincer, P. Nemethy, D. Noyes, J. M. Ryan, P. M. Saz Parkinson, A. Shoup, G. Sinnis, A. J. Smith, G. W. Sullivan, V. Vasileiou, G. P. Walker, D. A. Williams, X. W. Xu, G. B. Yodh

摘要:

银河伽玛射线源的调查,在一个中位数的能量为20 TeV已进行使用米拉格罗伽玛射线天文台。在银河系经度$l\in[30^\circ,220^\circ]$和纬度$b\in[-10^\circ,10^\circ]$区域探测到8个具有试验前显著性$>4.5σ$的TeV发射候选源。其中四个来源,包括蟹状星云和最近发表的MGRO J2019+37,在考虑了搜索3800平方度区域所涉及的试验后,观察到了具有重要意义的$>4σ$。所有这四个源也与EGRET源重合。两个较低意义的源与EGRET源一致,其中一个源是Geminga。另外两个候选人在银河系的天鹅座地区。几个来源似乎是空间延伸。在20 TeV的源的通量范围从~25%的螃蟹通量几乎一样明亮的螃蟹。

英文摘要:

A survey of Galactic gamma-ray sources at a median energy of ~20 TeV has been performed using the Milagro Gamma Ray Observatory. Eight candidate sources of TeV emission are detected with pre-trials significance $>4.5σ$ in the region of Galactic longitude $l\in[30^\circ,220^\circ]$ and latitude $b\in[-10^\circ,10^\circ]$. Four of these sources, including the Crab nebula and the recently published MGRO J2019+37, are observed with significances $>4σ$ after accounting for the trials involved in searching the 3800 square degree region. All four of these sources are also coincident with EGRET sources. Two of the lower significance sources are coincident with EGRET sources and one of these sources is Geminga. The other two candidates are in the Cygnus region of the Galaxy. Several of the sources appear to be spatially extended. The fluxes of the sources at 20 TeV range from ~25% of the Crab flux to nearly as bright as the Crab.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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