SILCC VI - multiphase ISM structure, stellar clustering, and outflows with supernovae, stellar winds, ionizing radiation, and cosmic rays

We present simulations of the multiphase interstellar medium (ISM) at solar neighbourhood conditions including thermal and non-thermal ISM processes, star cluster formation, and feedback from massive stars: stellar winds, hydrogen ionizing radiation computed with the novel treeray radiative transfer...

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Hauptverfasser: Rathjen, Tim-Eric (VerfasserIn) , Naab, Thorsten (VerfasserIn) , Girichidis, Philipp (VerfasserIn) , Walch, Stefanie (VerfasserIn) , Wunsch, Richard (VerfasserIn) , Dinnbier, Frantisek (VerfasserIn) , Seifried, Daniel (VerfasserIn) , Klessen, Ralf S. (VerfasserIn) , Glover, Simon (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 27 March 2021
In: Monthly notices of the Royal Astronomical Society
Year: 2021, Jahrgang: 504, Heft: 1, Pages: 1039-1061
ISSN:1365-2966
DOI:10.1093/mnras/stab900
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1093/mnras/stab900
Verlag, lizenzpflichtig, Volltext: https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=DynamicDOIArticle&SrcApp=WOS&KeyAID=10.1093%2Fmnras%2Fstab900&DestApp=DOI&SrcAppSID=EUW1ED0D06YE3nB2ffXiFExtSLJgJ&SrcJTitle=MONTHLY+NOTICES+OF+THE+ROYAL+ASTRONOMICAL+SOCIETY&DestDOIRegistrantName=Oxford+University+Press
Volltext
Verfasserangaben:Tim-Eric Rathjen, Thorsten Naab, Philipp Girichidis, Stefanie Walch, Richard Wunsch, Frantisek Dinnbier, Daniel Seifried, Ralf S. Klessen and Simon C.O. Glover

MARC

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245 1 0 |a SILCC VI - multiphase ISM structure, stellar clustering, and outflows with supernovae, stellar winds, ionizing radiation, and cosmic rays  |c Tim-Eric Rathjen, Thorsten Naab, Philipp Girichidis, Stefanie Walch, Richard Wunsch, Frantisek Dinnbier, Daniel Seifried, Ralf S. Klessen and Simon C.O. Glover 
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520 |a We present simulations of the multiphase interstellar medium (ISM) at solar neighbourhood conditions including thermal and non-thermal ISM processes, star cluster formation, and feedback from massive stars: stellar winds, hydrogen ionizing radiation computed with the novel treeray radiative transfer method, supernovae (SN), and the injection of cosmic rays (CR). N-body dynamics is computed with a 4th-order Hermite integrator. We systematically investigate the impact of stellar feedback on the self-gravitating ISM with magnetic fields, CR advection and diffusion, and non-equilibrium chemical evolution. SN-only feedback results in strongly clustered star formation with very high star cluster masses, a bi-modal distribution of the ambient SN densities, and low volume-filling factors (VFF) of warm gas, typically inconsistent with local conditions. Early radiative feedback prevents an initial starburst, reduces star cluster masses and outflow rates. Furthermore, star formation rate surface densities of , VFFwarm = 60-80 per cent as well as thermal, kinetic, magnetic, and cosmic ray energy densities of the model including all feedback mechanisms agree well with observational constraints. On the short, 100Myr, time-scales investigated here, CRs only have a moderate impact on star formation and the multiphase gas structure and result in cooler outflows, if present. Our models indicate that at low gas surface densities SN-only feedback only captures some characteristics of the star-forming ISM and outflows/inflows relevant for regulating star formation. Instead, star formation is regulated on star cluster scales by radiation and winds from massive stars in clusters, whose peak masses agree with solar neighbourhood estimates. 
650 4 |a collapse 
650 4 |a cosmic rays 
650 4 |a driven 
650 4 |a evolution 
650 4 |a galaxies: ISM 
650 4 |a galaxies: star formation 
650 4 |a galaxy formation 
650 4 |a interstellar-medium 
650 4 |a ISM: evolution 
650 4 |a ISM: structure 
650 4 |a magnetic-field 
650 4 |a methods: numerical 
650 4 |a molecular clouds 
650 4 |a simulations 
650 4 |a star-formation rates 
650 4 |a turbulent 
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700 1 |a Glover, Simon  |e VerfasserIn  |0 (DE-588)1043520449  |0 (DE-627)770635903  |0 (DE-576)394879252  |4 aut 
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