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Status: Bibliographieeintrag

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Verfasst von:Rathjen, Tim-Eric [VerfasserIn]   i
 Naab, Thorsten [VerfasserIn]   i
 Girichidis, Philipp [VerfasserIn]   i
 Walch, Stefanie [VerfasserIn]   i
 Wunsch, Richard [VerfasserIn]   i
 Dinnbier, Frantisek [VerfasserIn]   i
 Seifried, Daniel [VerfasserIn]   i
 Klessen, Ralf S. [VerfasserIn]   i
 Glover, Simon [VerfasserIn]   i
Titel:SILCC VI - multiphase ISM structure, stellar clustering, and outflows with supernovae, stellar winds, ionizing radiation, and cosmic rays
Verf.angabe:Tim-Eric Rathjen, Thorsten Naab, Philipp Girichidis, Stefanie Walch, Richard Wunsch, Frantisek Dinnbier, Daniel Seifried, Ralf S. Klessen and Simon C.O. Glover
E-Jahr:2021
Jahr:27 March 2021
Umfang:23 S.
Fussnoten:Gesehen am 19.05.2022
Titel Quelle:Enthalten in: Royal Astronomical SocietyMonthly notices of the Royal Astronomical Society
Ort Quelle:Oxford : Oxford Univ. Press, 1827
Jahr Quelle:2021
Band/Heft Quelle:504(2021), 1 vom: Juni, Seite 1039-1061
ISSN Quelle:1365-2966
Abstract: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.
DOI:doi:10.1093/mnras/stab900
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

Volltext ; Verlag: https://doi.org/10.1093/mnras/stab900
 Volltext: https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=DynamicDOIArticle&SrcApp=WOS&KeyAID=10.1093%2 ...
 DOI: https://doi.org/10.1093/mnras/stab900
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:collapse
 cosmic rays
 driven
 evolution
 galaxies: ISM
 galaxies: star formation
 galaxy formation
 interstellar-medium
 ISM: evolution
 ISM: structure
 magnetic-field
 methods: numerical
 molecular clouds
 simulations
 star-formation rates
 turbulent
K10plus-PPN:1803584580
Verknüpfungen:→ Zeitschrift

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