An elementary model for the dust cycle in galaxies

Details An elementary model for the dust cycle in galaxies An elementary model for the dust cycle in galaxies

Nov 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001mnras.328..223e&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 328, Issue 1, pp. 223-236.

Astronomy and Astrophysics

Astronomy

49

Ism: Abundances, Dust, Extinction, Galaxies: Evolution, Galaxies: Ism

Scientific paper

We give an elementary model for the evolution of dust in galaxies, based on abundance arguments. The model takes account of grain core production in both supernovae and giant stars, and includes mantle growth in the interstellar medium. Destruction of grain cores does not appear to be a dominant effect. We show that a self-consistent picture can be made in which the interstellar dust mass is an approximately constant fraction of the heavy element mass in the interstellar medium. This result is demonstrated to be essentially independent of outflow or inflow of interstellar material.

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