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arXiv 1111.0025astro-ph.HE
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AGILE第一个γ射线目录在AGILE 2.3年定点观测上的变率研究

A variability study of the AGILE first catalog of γ-ray sources on 2.3 years of AGILE pointed observations

F. Verrecchia, C. Pittori, A. Bulgarelli, A. W. Chen, M. Tavani, F. Lucarelli, P. Giommi

摘要:

AGILE从2007年7月9日到2009年10月30日进行的定点观测覆盖了很长的时间间隔,γ射线数据集可用于研究30 MeV - 50 GeV能量范围内的中高亮度星系源。我们提出了一个研究的1AGL星系源在E > 100 MeV波段,在完整的敏捷指向观测块(OBs)档案。第一个AGILE伽马射线成像探测器(GRID)目录包括47个源的样本(1AGL; Pittori等人,2009年),在第一年的操作数据集中进行了保守分析。在本文报告的分析中,我们使用了通过改进的全视场(FOV)事件过滤器获得的数据,在更大的(约27.5个月)观察数据集上,分别分析了所有数据和每个OB的合并。与1AGL相比,数据处理导致了源列表的改进,特别是在银道面的复杂区域。在这里,我们提出了一些结果的修订1AGL星系源和其中一些的变化。

英文摘要:

AGILE pointed observations performed from July 9, 2007 to October 30, 2009 cover a very large time interval, with a γ-ray dataset useful to perform studies of medium to high brightness galactic sources in the 30 MeV -- 50 GeV energy range. We present a study of the 1AGL galactic sources in the E > 100 MeV band, over the complete Agile pointed Observation Blocks (OBs) archive. The first AGILE Gamma-Ray Imaging Detector (GRID) catalog included a sample of 47 sources (1AGL; Pittori et al. 2009), detected with a conservative analysis over the first year of operations dataset. In the analysis here reported we used data obtained with an improved full Field of View (FOV) event filter, on a much larger (about 27.5 months) observation dataset, analyzing the merging of all data and each OB separately. The data processing resulted in an improved source list as compared to the 1AGL one, particularly in complex regions of the galactic plane. We present here some results on the revised 1AGL galactic sources and on the variability of some of them.

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