articleMonthly Notices of the Royal Astronomical SocietyAug 31, 2009BRONZE OA

Chemical enrichment in cosmological, smoothed particle hydrodynamics simulations

RPRobert P. C. WiersmaJSJoop SchayeTTTom TheunsCDClaudio Dalla VecchiaLTLuca Tornatore

Leiden University · Durham University · +3 more institutions

Indexed inarxivcrossrefdoaj

Abstract

We present an implementation of stellar evolution and chemical feedback for smoothed particle hydrodynamics simulations. We consider the timed release of individual elements by both massive (Type II supernovae and stellar winds) and intermediate-mass stars (Type Ia supernovae and asymptotic giant branch stars). We illustrate the results of our method using a suite of cosmological simulations that include new prescriptions for radiative cooling, star formation and galactic winds. Radiative cooling is implemented element-by-element, in the presence of an ionizing radiation background, and we track all 11 elements that contribute significantly to the radiative cooling. While all simulations presented here use a…

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Authors

5
  • RP
    Robert P. C. WiersmaCorresponding

    Leiden University

  • JS
    Joop Schaye

    Leiden University

  • TT
    Tom Theuns

    Durham University, University of Antwerp

  • CD
    Claudio Dalla Vecchia

    Leiden University

  • LT
    Luca Tornatore

    Trieste Astronomical Observatory, Istituto Nazionale di Fisica Nucleare, Sezione di Trieste

Topics & keywords

Topics
Keywords
  • Smoothed-particle hydrodynamics
  • Supernova
  • Metallicity
  • Radiative transfer
  • Stars
  • Abundance of the chemical elements
  • Stellar evolution
  • Parametrization (atmospheric modeling)
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