Cosmic evolution of grain size distribution in galaxies using the ν2GC semi-analytical model
نویسندگان
چکیده
ABSTRACT We investigate the cosmological evolution of interstellar dust with a semi-analytical galaxy formation model (ν2GC), focusing on grain size distribution. The predicts statistical properties mass and distribution in galaxies across cosmic history. confirm that reproduces relation between dust-to-gas ratio metallicity local Universe, distributions Milky Way (MW)-like sample become similar to so-called Mathis, Rumpl & Nordsieck (MRN) observed MW extinction curve. Our model, however, tends overpredict function at massive end redshift z ≲ 0.8 while it abundance dusty higher redshifts. also examine correlation (metallicity, specific star rate, gas fraction, stellar mass), observe clear trend large-grain-dominated, small-grain-dominated, MRN-like from unevolved evolved stages. As consequence, curve shapes are flat, steep, intermediate (MW-like) phases. At fixed metallicity, have larger fractions small grains lower redshift; accordingly, be steeper redshift. predict supersolar-metallicity objects high flat curves weak 2175 Å bump strength.
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2022
ISSN: ['0035-8711', '1365-8711', '1365-2966']
DOI: https://doi.org/10.1093/mnras/stac2762