Mineralogy of Circumstellar and Interstellar Dust: The SPICA Potential
Astronomical Institute ”Anton Pannekoek”, University of Amsterdam, Kruislaan 904, 1098 XH Amsterdam, The Netherlands
2 Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
The mid-infared spectral region contains many resonances of dust species that are of astrophysical interest. These resonances can be used to trace the dust cycle in galaxies, starting from the evolved low- and high mass stars, through the interstellar medium to molecular clouds and proto-planetary systems. In particular the mineralogy of circumstellar dust is very rich, reﬂecting the wide range in physical and chemical conditions that occur near stars in different evolutionary phases. Astromineralogy also offers a quantitative link between the composition of ob jects in the solar system, and proto-planetary disks and debris disks that are observed around young and mature stars.
Key words: Galaxies: interstellar matter / Stars: formation / Stars: evolved stars / Missions: SPICA
© Owned by the authors, published by EDP Sciences, 2009