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arXiv 0802.0676astro-ph
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MS,红外线中的S和C星。亮度和质量损失率

MS, S and C Stars in the Infrared. Luminosities and Mass Loss Rates

R. Guandalini

摘要:

在这篇笔记中,我提出了一个概述的红外(IR)光度AGB的属性,基于两个样本的银河系长周期变星(C-和S-型分别)。我展示了在选择光源的过程中使用的各种选择标准,并描述了在近红外和中红外波长观察它们的动机。我讨论了在估计它们的光度和距离时遇到的问题,并激发了我为此目的选择的方法。光度函数的性质和赫兹-罗素(HR)图从分析中得到的讨论。最后,所作的选择估计的质量损失率的描述和有关他们的初步结果。

英文摘要:

In this note I present an outline of infrared (IR) photometric AGB properties, based on two samples of Galactic Long Period Variables (C- and S-type respectively). I show the various selection criteria used during the choice of the sources and describe the motivations of observing them at near- and mid-IR wavelengths. I discuss the problems encountered in estimating their luminosity and distance and motivate the methods I choose for this purpose. Properties of the luminosity functions and of the Hertzsprung-Russell (HR) diagrams obtained from the analysis are discussed. Finally, the choices made for estimating of the mass loss rates are described and preliminary results concerning them are shown.

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