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arXiv 1402.0083astro-ph.GA
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内Milky Way通过红团巨星的红外消光

Infrared extinction in the Inner Milky Way through the red clump giants

Carlos González-Fernández, Andrés Asensio Ramos, Francisco Garzón, Antonio Cabrera-Lavers, Peter L. Hammersley

摘要:

虽然红外线上的消光曲线的形状被认为是固定的,并且红外波段之间的消光比通常被认为是近似恒定的,但最近的一些研究指出幂律指数的空间可变行为或完全不同的消光定律。在本文中,我们提出了一种方法来分析的整体行为的星际消光的红团人口的手段,我们把它应用到银河系的那些地区,星际物质的存在是沉重的感觉:位于5度<l<30度和b=0度。我们表明,传统上用于近红外消光比可能是不合适的内银河系,我们分析的行为消光定律从1到8微米。

英文摘要:

While the shape of the extinction curve on the infrared is considered to be set and the extinction ratios between infrared bands are usually taken to be approximately constant, a recent number of studies point either to a spatially variable behavior on the exponent of the power law or to a different extinction law altogether. In this paper, we propose a method to analyze the overall behavior of the interstellar extinction by means of the red-clump population, and we apply it to those areas of the Milky Way where the presence of interstellar matter is heavily felt: areas located in 5 deg<l<30 deg and b=0 deg. We show that the extinction ratios traditionally used for the near infrared could be inappropriate for the inner Galaxy and we analyze the behavior of the extinction law from 1 to 8 microns.

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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