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The Galactic Dust-Up: Modeling Dust Evolution in FIRE

Choban, Caleb R. and Kereš, Dušan and Hopkins, Philip F. and Sandstrom, Karin M. and Hayward, Christopher C. and Faucher-Giguère, Claude-André (2022) The Galactic Dust-Up: Modeling Dust Evolution in FIRE. . (Unpublished) https://resolver.caltech.edu/CaltechAUTHORS:20220228-183319490

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Abstract

Recent strides have been made developing dust evolution models for galaxy formation simulations but these approaches vary in their assumptions and degree of complexity. Here we introduce and compare two separate dust evolution models (labelled 'Elemental' and 'Species'), based on recent approaches, incorporated into the GIZMO code and coupled with FIRE-2 stellar feedback and ISM physics. Both models account for turbulent dust diffusion, stellar production of dust, dust growth via gas-dust accretion, and dust destruction from time-resolved supernovae, thermal sputtering in hot gas, and astration. The "Elemental" model tracks the evolution of generalized dust species and utilizes a simple, 'tunable' dust growth routine, while the "Species" model tracks the evolution of specific dust species with set chemical compositions and incorporates a physically motivated, two-phase dust growth routine. We test and compare these models in an idealized Milky Way-mass galaxy and find that while both produce reasonable galaxy-integrated dust-to-metals (D/Z) ratios and predict gas-dust accretion as the main dust growth mechanism, a chemically motivated model is needed to reproduce the observed scaling relation between individual element depletions and D/Z with column density and local gas density. We also find the inclusion of theoretical metallic iron and O-bearing dust species are needed in the case of specific dust species in order to match observations of O and Fe depletions, and the integration of a sub-resolution dense molecular gas/CO scheme is needed to both match observed C depletions and ensure carbonaceous dust is not overproduced in dense environments.


Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription
http://arxiv.org/abs/2201.12369arXivDiscussion Paper
http://www.tapir.caltech.edu/~phopkins/Site/GIZMO.htmlRelated ItemGIZMO code
ORCID:
AuthorORCID
Choban, Caleb R.0000-0001-9200-169X
Kereš, Dušan0000-0002-1666-7067
Hopkins, Philip F.0000-0003-3729-1684
Sandstrom, Karin M.0000-0002-4378-8534
Hayward, Christopher C.0000-0003-4073-3236
Faucher-Giguère, Claude-André0000-0002-4900-6628
Additional Information:We thank I-Da Chiang, Lichen Liang, and Alexander J. Richings for insightful suggestions and advice. CC and DK were supported by NSF grant AST-1715101 and the Cottrell Scholar Award from the Research Corporation for Science Advancement. Numerical calculations were run on the UC San Diego Triton Shared Computing Cluster, and allocations AST20016 & TG-AST140023 supported by the NSF and TACC. Support for PFH was provided by NSF Research Grants 1911233 & 20009234, NSF CAREER grant 1455342, NASA grants 80NSSC18K0562, HST-AR-15800.001-A. KS was supported by National Science Foundation grant No. 1615728. CAFG was supported by NSF through grants AST-1715216, AST-2108230, and CAREER award AST-1652522; by NASA through grant 17-ATP17-0067; by STScI through grant HST-AR-16124.001-A; and by the Research Corporation for Science Advancement through a Cottrell Scholar Award. The data used in this work were, in part, hosted on facilities supported by the Scientific Computing Core at the Flatiron Institute, a division of the Simons Foundation. This work also made use of MATPLOTLIB (Hunter 2007), NUMPY (Harris et al. 2020), SCIPY (Virtanen et al. 2020), the yt project (Turk et al. 2011), and NASA’s Astrophysics Data System. DATA AVAILABILITY STATEMENT. The data supporting the plots within this article are available on reasonable request to the corresponding author. A public version of the GIZMO code is available at http://www.tapir.caltech.edu/~phopkins/Site/GIZMO.html.
Group:TAPIR, Astronomy Department
Funders:
Funding AgencyGrant Number
NSFAST-1715101
Cottrell Scholar of Research CorporationUNSPECIFIED
NSFAST-20016
NSFTG-AST140023
NSFAST-1911233
NSFAST-20009234
NSFAST-1455342
NASA80NSSC18K0562
NASAHST-AR-15800.001-A
NSFAST-1615728
NSFAST-1715216
NSFAST-2108230
NSFAST-1652522
NASA17-ATP17-0067
NASAHST-AR-16124.001-A
Simons FoundationUNSPECIFIED
Subject Keywords:methods: numerical – dust, extinction – galaxies: evolution – galaxies: ISM
Record Number:CaltechAUTHORS:20220228-183319490
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20220228-183319490
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:113653
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:01 Mar 2022 00:05
Last Modified:01 Mar 2022 00:05

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