Stellar dust production and composition in the Magellanic Clouds

被引：2

作者：

Kemper, F. ^{[1
]}

机构：

[1] Acad Sinica, Inst Astron & Astrophys, Taipei 10617, Taiwan

来源：

EARTH PLANETS AND SPACE | 2013年 / 65卷 / 03期

关键词：

Stars: AGB post-AGB stars; stars: mass loss; circumstellar matter; dust; Magellanic Clouds; GIANT BRANCH STARS; MASS-LOSS RETURN; SPITZER-SPACE-TELESCOPE; GALAXY EVOLUTION SAGE; M EMISSION FEATURE; MU-M SOURCES; EVOLVED STARS; CARBON STARS; LOW METALLICITY; CONDENSATION SEQUENCE;

D O I：

10.5047/eps.2012.04.013

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The dust reservoir in the interstellar medium of a galaxy is constantly being replenished by dust formed in the stellar winds of evolved stars. Due to their vicinity, nearby irregular dwarf galaxies the Magellanic Clouds provide an opportunity to obtain a global picture of the dust production in galaxies. The Small and Large Magellanic Clouds have been mapped with the Spitzer Space Telescope from 3.6 to 160 mu m, and these wavelengths are especially suitable to study thermal dust emission. In addition, a large number of individual evolved stars have been targeted for 5-40 mu m spectroscopy, revealing the mineralogy of these sources. Here I present an overview on the work done on determining the total dust production rate in the Large and Small Magellanic Clouds, as well as a first attempt at revealing the global composition of the freshly produced stardust.

引用

页码：223 / 227

页数：5

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