Stellar evolutionary models with 13-120Msun Virtual Observatory Resource

Authors
  1. Chieffi A.
  2. Limongi M.
  3. Published by
    CDS
Abstract

We present the first set of a new generation of models of massive stars with a solar composition extending between 13 and 120M_{sun}_, computed with and without the effects of rotation. We included two instabilities induced by rotation: the meridional circulation and the shear instability. We implemented two alternative schemes to treat the transport of the angular momentum: the advection-diffusion formalism and the simpler purely diffusive one. The full evolution from the pre-main sequence up to the pre-supernova stage is followed in detail with a very extended nuclear network. The explosive yields are provided for a variety of possible mass cuts and are available at the Web site http://www.iasf-roma.inaf.it/orfeo/public_html. We find that both the He and the CO core masses are larger than those of their non-rotating counterparts. Also the C abundance left by the He burning is lower than in the non-rotating case, especially for stars with an initial mass of 13-25M_{sun}_, and this affects the final mass-radius relation, basically the final binding energy, at the pre-supernova stage. The elemental yields produced by a generation of stars rotating initially at 300km/s do not change substantially with respect to those produced by a generation of non-rotating massive stars, the main differences being a slight overproduction of the weak s-component and a larger production of F. Since rotation also affects the mass-loss rate, either directly or indirectly, we find substantial differences in the lifetimes as O-type and Wolf-Rayet subtypes between the rotating and non-rotating models. The maximum mass exploding as Type IIP supernova ranges between 15 and 20M _{sun}_ in both sets of models (this value depends basically on the larger mass-loss rates in the red supergiant phase due to the inclusion of the dust-driven wind). This limiting value is in remarkably good agreement with current estimates.

Keywords
  1. stellar-evolutionary-models
  2. supernovae
  3. stellar-masses
Bibliographic source Bibcode
2013ApJ...764...21C
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/764/21
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJ/764/21
Document Object Identifer DOI
doi:10.26093/cds/vizier.17640021

Access

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http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/764/21
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/764/21
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/764/21
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History

2014-11-17T11:35:30Z
Resource record created
2014-11-17T11:35:30Z
Created
2014-12-04T15:01:37Z
Updated

Contact

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CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
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cds-question@unistra.fr