arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1110.4656astro-ph.HE
收藏

用VERITAS观测SNR CTA 1和Cyg OB1区

Observations of SNR CTA 1 and the Cyg OB1 region with VERITAS

Ester Aliu

摘要:

天鹅座区域是附近一个非常活跃的恒星形成区域,包含几个OB星协,被认为是年轻恒星的示踪物。在12 TeV以上,Milagro合作组织报告发现了一个非常大的源,MGRO J2019+37,位于天鹅座区域边缘的天鹅座OB1星协。年轻而充满活力的脉冲星PSR J2021+3651被提议为这种发射提供动力。我们在这里提出的结果,深VERITAS观测这一地区的能量超过650 GeV。这些观测揭示了与MGRO J2019+37兼容的扩展和复杂的TeV发射,可能由多个源组成,以及来自CTB 87方向的明显分离的点源发射,CTB 87是脉冲星风星云候选者。我们还将报告对年轻的银河SNR CTA 1的TeV发射的检测,该发射可能由通过其伽马射线辐射发现的第一颗脉冲星提供动力。

英文摘要:

The Cygnus region is a nearby very active star forming region, containing several OB associations, considered as tracers of young pulsars. Above 12 TeV, the Milagro Collaboration has reported the discovery of a very large source, MGRO J2019+37, lying towards the Cyg OB1 association, at the edge of the Cygnus region. The young and energetic pulsar PSR J2021+3651 has been proposed to power this emission. We present here the result of deep VERITAS observations of this region at energies above 650 GeV. These observations unveil extended and complex TeV emission compatible with MGRO J2019+37, likely made of multiple sources, and a clearly separated point source emission from the direction of CTB 87, a pulsar wind nebula candidate. We will also report on the detection of TeV emission from the young Galactic SNR CTA 1, likely powered by the first pulsar discovered through its gamma-ray radiation.

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。

↑