| Abstract: |
The existence of dust at high redshifts has great impacts in
interpreting the physical processes ongoing in the early
universe from observations. At z > 5, the main sources of
dust are considered to be supernovae (SNe). However, a
fraction of dust formed in SN ejecta can be destroyed by
the passage of the reverse shock before injected into the
interstellar medium. In order to clarify the origin and nature
of dust grains at high redshifts, we investigate the formation
of dust in the ejecta of primordial SNe. In addition, we explore
the processing of newly formed dust in the hot gas swept up
by the reverse and forward shocks and report the composition,
size, and amount of dust ejected from SNe into the interstellar
medium.
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