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RAMSES-CH: a new chemodynamical code for cosmological simulations


Few, C G; Courty, S; Gibson, B K; Kawata, D; Calura, F; Teyssier, R (2012). RAMSES-CH: a new chemodynamical code for cosmological simulations. Monthly Notices of the Royal Astronomical Society. Letters, 424(1):L11-L15.

Abstract

We present a new chemodynamical code -RAMSES-CH- for use in simulating the self-consistent evolution of chemical and hydrodynamical properties of galaxies within a fully cosmological framework. We build upon the adaptive mesh refinement code RAMSES, which includes a treatment of self-gravity, hydrodynamics, star formation, radiative cooling and supernova feedback, to trace the dominant isotopes of C, N, O, Ne, Mg, Si and Fe. We include the contribution of Type Ia and Type II supernovae, in addition to low- and intermediate-mass asymptotic giant branch stars, relaxing the instantaneous recycling approximation. The new chemical evolution modules are highly flexible and portable, lending themselves to ready exploration of variations in the underpinning stellar and nuclear physics. We apply RAMSES-CH to the cosmological simulation of a typical L★ galaxy, demonstrating the successful recovery of the basic empirical constraints regarding [α/Fe]-[Fe/H] and Type Ia/II supernova rates.

Abstract

We present a new chemodynamical code -RAMSES-CH- for use in simulating the self-consistent evolution of chemical and hydrodynamical properties of galaxies within a fully cosmological framework. We build upon the adaptive mesh refinement code RAMSES, which includes a treatment of self-gravity, hydrodynamics, star formation, radiative cooling and supernova feedback, to trace the dominant isotopes of C, N, O, Ne, Mg, Si and Fe. We include the contribution of Type Ia and Type II supernovae, in addition to low- and intermediate-mass asymptotic giant branch stars, relaxing the instantaneous recycling approximation. The new chemical evolution modules are highly flexible and portable, lending themselves to ready exploration of variations in the underpinning stellar and nuclear physics. We apply RAMSES-CH to the cosmological simulation of a typical L★ galaxy, demonstrating the successful recovery of the basic empirical constraints regarding [α/Fe]-[Fe/H] and Type Ia/II supernova rates.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute for Computational Science
Dewey Decimal Classification:530 Physics
Language:English
Date:July 2012
Deposited On:22 Jan 2013 10:23
Last Modified:05 Apr 2016 16:18
Publisher:Oxford University Press
ISSN:1745-3933
Additional Information:This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society. Letters © 2012 The authors. Published by Oxford University Press. All rights reserved.
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1111/j.1745-3933.2012.01275.x

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