Dust Production and Simulation on Cosmological Scale
Explore the simulation of dust production, growth, and destruction in the interstellar medium (ISM) on a cosmological scale. Learn about the types of dust included, production mechanisms in core-collapse supernovae and AGB stars, as well as processes like grain growth and thermal sputtering. Dive into the fascinating world of cosmic dust dynamics.
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Presentation Transcript
Simulating Dust Production, Growth and Destruction in the ISM on a Cosmological Scale Alice Ferreira National Astronomy Meeting 2025 University of Durham, 7th July
Our simulation Kobayashi+20 Kobayashi+14
Types of dust we include Silicates Carbonaceous Other Forsterite - Mg2SiO4 Carbon - C Iron - Fe Fayalite - Fe2SiO4 Magnetite - Fe3O4 Enstatite - Mg2Si2O6 Corundum - Al2O3 Ferrosilite - Fe2Si2O6 Silicon Carbide - SiC Quartz - SiO2
Dust production in core-collapse supernovae Dust produced at solar metallicity (Z = 0.02) Dust produced at Z = 0 Mdust / M Mdust / M M* / M M* / M Yields from Bianchi+07
Dust production in AGB stars Dust produced at low metallicity (Z = 0.001) Dust produced at solar metallicity (Z = 0.02) log(Mdust / Msun) Mdust / M Mdust / M M* / Msun M* / M M* / Msun M* / M Yields from Zhukovska+08
Grain growth in the interstellar medium Dust Atomic metal
Thermal sputtering in the interstellar medium Dust Hot gas Atomic metal
Dust destruction by supernova shock waves Supernova Red supergiant Dust Atomic metal
Destruction by star formation Dust Star
Dust mass to stellar mass ratio in galaxies with decreasing redshift
Dust mass to stellar mass ratio in galaxies with decreasing redshift
Dust mass to stellar mass ratio in galaxies with decreasing redshift
Dust mass to stellar mass ratio in galaxies with decreasing redshift
Future work Refining dust model New supernova dust yields Mass bins for different grain sizes
Summary Modelling dust is important to explain dust masses at high redshift and more accurately correct for dust in observations We include the processes of dust production by stars, grain growth, and destruction by thermal sputtering, supernova shock waves and star formation in the ISM in our cosmological simulations We have preliminarily compared our results with observations but more refinement is needed
Dust production in core-collapse supernovae Schneider+24
Dust mass survival after the reverse shock Bianchi+07
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