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arXiv 0912.4492astro-ph.HEastro-ph.GA
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银道面天鹅座区域的VERITAS巡天

The VERITAS Survey of the Cygnus Region of the Galactic Plane

Amanda Weinstein

摘要:

VERITAS IACT天文台对银经67至82度和银纬-1至4度之间的天鹅座区域进行了广泛的调查。这个区域是北半球进行甚高能伽马射线调查的自然选择,因为它包含大量潜在的甚高能伽马射线发射源,如超新星遗迹、脉冲星风星云、高质量X射线双星和大质量星团,以及一些以前探测到的甚高能伽马射线源。它也是许多GeV伽马射线源的所在地,包括在费米数据的前六个月中发现的不少于四个新的高重要性源。VERITAS调查,包括超过140小时的观测,达到了平均VHE点源通量灵敏度优于4%的蟹状星云通量在能量超过200 GeV。在这里,我们报告的初步结果,从这次调查,包括两个源检测,并讨论了进一步的研究,将利用VERITAS和费米数据在该地区提供的联合覆盖的前景。

英文摘要:

The VERITAS IACT observatory has carried out an extensive survey of the Cygnus region between 67 and 82 degrees in galactic longitude and between -1 and 4 degrees in galactic latitude. This region is a natural choice for a Very High Energy (VHE) gamma-ray survey in the Northern Hemisphere, as it contains a substantial number of potential VHE gamma-ray emitters such as supernova remnants, pulsar wind nebulae, high-mass X-ray binaries, and massive star clusters, in addition to a few previously detected VHE gamma-ray sources. It is also home to a number of GeV gamma-ray sources, including no less than four new high-significance sources detected in the first six months of Fermi data. The VERITAS survey, comprising more than 140 hours of observations, reaches an average VHE point-source flux sensitivity of better than 4% of the Crab Nebula flux at energies above 200 GeV. Here we report on preliminary results from this survey, including two source detections, and discuss the prospects for further studies that would exploit the joint coverage provided by VERITAS and Fermi data in this region.

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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