How to quench a dwarf galaxy: The impact of inhomogeneous reionization on dwarf galaxies and cosmic filaments
| Autor: | Taysun Kimm, Adrianne Slyz, Julien Devriendt, Léo Michel-Dansac, Marius Ramsoy, Clotilde Laigle, Martin G. Haehnelt, Jeremy Blaizot, Harley Katz, Joakim Rosdahl, Thibault Garel |
|---|---|
| Přispěvatelé: | Centre de Recherche Astrophysique de Lyon (CRAL), École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Haehnelt, Martin [0000-0001-8443-2393], Apollo - University of Cambridge Repository, Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Cosmology and Nongalactic Astrophysics (astro-ph.CO)
first stars FOS: Physical sciences Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics 01 natural sciences galaxies: high-redshift 0103 physical sciences galaxies: formation Astrophysics::Solar and Stellar Astrophysics dark ages reionization first stars dark ages 010303 astronomy & astrophysics Reionization Astrophysics::Galaxy Astrophysics Dwarf galaxy Physics 010308 nuclear & particles physics Star formation Local Group Astronomy and Astrophysics galaxies: dwarf Astrophysics - Astrophysics of Galaxies Photoevaporation Galaxy Redshift Supernova 13. Climate action Space and Planetary Science radiative transfer Astrophysics of Galaxies (astro-ph.GA) reionization intergalactic medium [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] Astrophysics - Cosmology and Nongalactic Astrophysics |
| Zdroj: | Monthly Notices of the Royal Astronomical Society Mon.Not.Roy.Astron.Soc. Mon.Not.Roy.Astron.Soc., 2020, 494 (2), pp.2200-2220. ⟨10.1093/mnras/staa639⟩ Monthly Notices of the Royal Astronomical Society, 2020, 494 (2), pp.2200-2220. ⟨10.1093/mnras/staa639⟩ |
| ISSN: | 0035-8711 1365-2966 |
| DOI: | 10.1093/mnras/staa639 |
| Popis: | We use the SPHINX suite of high-resolution cosmological radiation hydrodynamics simulations to study how spatially and temporally inhomogeneous reionization impacts the baryonic content of dwarf galaxies and cosmic filaments. The SPHINX simulations simultaneously model an inhomogeneous reionization, follow the escape of ionising radiation from thousands of galaxies, and resolve haloes well below the atomic cooling threshold. This makes them an ideal tool for examining how reionization impacts star formation and the gas content of dwarf galaxies. We compare simulations with and without stellar radiation to isolate the effects of radiation feedback from that of supernova, cosmic expansion, and numerical resolution. We find that the gas content of cosmic filaments can be reduced by more than 80% following reionization. The gas inflow rates into haloes with $M_{vir}3$ at fixed mass. Finally, although the gas content of high-redshift dwarf galaxies is significantly impacted by reionization, we find that most haloes with $M_{vir} 21 pages, 11 figures, MNRAS Accepted |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|