Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998mnras.299l..29e&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 299, Issue 2, pp. L29-l31.
Astronomy and Astrophysics
Astronomy
28
Dust, Extinction, Galaxies: Evolution, Galaxies: General, Galaxies: Ism
Scientific paper
The large dust masses apparently present in some galaxies at high redshift prompt the question of just how much interstellar dust can be present per unit mass of a galaxy. Under very simple assumptions, we derive an upper limit to this mass - showing both what is possible for a galaxy of given total mass and various gas fractions, and what represents the ultimate upper limit for a given stellar or total mass, if we are free to choose the particular gas fraction. The results hold for a galaxy formed with arbitrary gas outflows, or arbitrary inflows of unenriched gas, and illustrate the difficulty of generating very high dust masses in galaxies.
Eales Stephen A.
Edmunds Michael G.
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