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Abstract
Quantifying the efficiency of dust destruction in the interstellar
medium (ISM) due to supernovae (SNe) is crucial for the understanding of
galactic dust evolution. We present 3D hydrodynamic simulations of an SN
blast wave propagating through the ISM. The interaction between the
forward shock of the remnant and the surrounding ISM leads to
destruction of ISM dust by the shock heated gas. We consider the dust
processing due to ion sputtering, accretion of atoms/molecules and
grain-grain collisions. Using 2D slices from the simulation timeseries,
we apply post-processing calculations using the Paperboats code. We find
that efficiency of dust destruction depends strongly on the rate of
grain shattering due to grain-grain collisions. The effective dust
destruction is similar to previous theoretical estimates when
grain-grain collisions are omitted, but with grain shattering included,
the net destruction efficiency is roughly one order of magnitude higher.
This result indicates that the dust destruction rate in the ISM may have
been severely underestimated in previous work, which only exacerbates
the dust-budget crises seen in galaxies at high redshifts.
Original language | English |
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Pages (from-to) | 3218–3234 |
Number of pages | 17 |
Journal | Monthly Notices of the Royal Astronomical Society |
Volume | 509 |
Issue number | 3 |
Early online date | 22 Oct 2021 |
DOIs | |
Publication status | Published - 26 Nov 2021 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Astrophysics - Astrophysics of Galaxies
- Astrophysics - Solar and Stellar Astrophysics
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UniSDyn: Building up a Unified Theory of Stellar Dynamos
Korpi-Lagg, M., Pekkilä, J. & Rheinhardt, M.
01/01/2020 → 30/04/2024
Project: EU: ERC grants
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ReSolve 2017-19
Korpi-Lagg, M., Rheinhardt, M., Käpylä, P., Olspert, N. & Gent, F.
01/01/2017 → 31/12/2019
Project: Academy of Finland: Other research funding