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Paper: Evolution of Grain Size Distribution in Starburst Galaxies
Volume: 477, Galaxy Mergers in an Evolving Universe
Page: 279
Authors: Hirashita, H.
Abstract: We present our recent theoretical results on the evolution of grain size distribution in starburst galaxies at high redshift. We take into account the dust production and ejection from supernovae and the subsequent processing of the dust in the interstellar medium. We find that shattering (disruption by grain–grain collision) driven by interstellar turbulence modifies the grain size distribution on a timescale of several Myr. We also calculate extinction curves, finding that the extinction curve observed in a z = 6.2 quasar can be reproduced if the dust supplied from supernovae is processed by shattering in interstellar turbulence.
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