Progress and Perspectives in Solid State Astrophysics-From ISO to Herschel (With 11 Figures)

Astronomy and Astrophysics – Astronomy

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Circumstellar Dust, Infrared Astronomy, Agb Stars

Scientific paper

During the final stages of their evolution, stars with low to intermediate masses produce huge quantities - up to the order of earth masses per year - of dust grains. This production of solid particles is of crucial importance both for the physico-chemical conditions in the respective circumstellar environments and for the cosmic cycle of matter.
The branch of astronomy dealing with cosmic dust - sometimes referred to as solid state astrophysics - uses three principal methods: astronomical infrared spectroscopy, laboratory measurements of optical properties of solids and modelling the chemical and physical processes going on in the atmospheres of evolved stars.
Considerable progress has been achieved, during the past decade, in solid state astropyhsics; specific questions have arisen which necessitate new, dedicated measurements and observations. Here we highlight some aspects of this progress and then proceed to outlining insights in this field which are about to be attained by means of new satellite facilities such as Spitzer and Herschel.

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