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arXiv 1706.01296astro-ph.GA
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从AKARI FIS资料看伽玛暴的前景

Foreground of GRBs from AKARI FIS data

L. Viktor Toth, Yasuo Doi, Sarolta Zahorecz, Marton Agas, Lajos G. Balazs, Adrienn Forro, Istvan I. Racz, Zsolt Bagoly, Istvan Horvath, Sandor Pinter

摘要:

利用余辉计算了伽马射线暴及其宿主星系的大量参数。有各种方法获得消光值的必要修正银河前景。这些是:星系计数,从HI 21厘米调查,从光谱测量和附近的银河系恒星的颜色,或使用消光图计算红外调查对伽玛射线暴。我们证明了AKARI远红外巡天仪的天空表面亮度图是有用的,揭示了伽玛暴的银河前景的精细结构。用2角分的分辨率计算了一些伽玛暴的卷云结构,并与其它方法的结果进行了比较。

英文摘要:

A significant number of the parameters of a gamma-ray burst (GRB) and its host galaxy are calculated from the afterglow. There are various methods obtaining extinction values for the necessary correction for galactic foreground. These are: galaxy counts, from HI 21 cm surveys, from spectroscopic measurements and colors of nearby Galactic stars, or using extinction maps calculated from infrared surveys towards the GRB. We demonstrate that AKARI Far-Infrared Surveyor sky surface brightness maps are useful uncovering the fine structure of the galactic foreground of GRBs. Galactic cirrus structures of a number of GRBs are calculated with a 2 arcminute resolution, and the results are compared to that of other methods.

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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