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The dust content of galaxies from z = 0 to z = 9
- Publication Year :
- 2016
-
Abstract
- We study the dust content of galaxies from $z=0$ to $z=9$ in semi-analytic models of galaxy formation that include new recipes to track the production and destruction of dust. We include condensation of dust in stellar ejecta, the growth of dust in the interstellar medium (ISM), the destruction of dust by supernovae and in the hot halo, and dusty winds and inflows. The rate of dust growth in the ISM depends on the metallicity and density of molecular clouds. Our fiducial model reproduces the relation between dust mass and stellar mass from $z=0$ to $z=7$, the number density of galaxies with dust masses less than $10^{8.3}\,\rm{M}_\odot$, and the cosmic density of dust at $z=0$. The model accounts for the double power-law trend between dust-to-gas (DTG) ratio and gas-phase metallicity of local galaxies and the relation between DTG ratio and stellar mass. The dominant mode of dust formation is dust growth in the ISM, except for galaxies with $M_*<br />Accepted for publication in MNRAS
- Subjects :
- Cosmology and Nongalactic Astrophysics (astro-ph.CO)
Metallicity
Astrophysics::High Energy Astrophysical Phenomena
Extinction (astronomy)
FOS: Physical sciences
Astrophysics
Astrophysics::Cosmology and Extragalactic Astrophysics
01 natural sciences
0103 physical sciences
Astrophysics::Solar and Stellar Astrophysics
010303 astronomy & astrophysics
Astrophysics::Galaxy Astrophysics
Cosmic dust
Physics
010308 nuclear & particles physics
Molecular cloud
Astronomy
Astronomy and Astrophysics
Intergalactic dust
Astrophysics - Astrophysics of Galaxies
Galaxy
Interstellar medium
Space and Planetary Science
Astrophysics of Galaxies (astro-ph.GA)
Circumstellar dust
Astrophysics::Earth and Planetary Astrophysics
Astrophysics - Cosmology and Nongalactic Astrophysics
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....f6dca4dd8a118f7b5c76e4ce49cca8fb