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New PARSEC database of alpha enhanced stellar evolutionary tracks and isochrones for Gaia

  • Xiaoting Fu (a1), Alessandro Bressan (a1), Paola Marigo (a2), Léo Girardi (a3), Josefina Montalban (a2), Yang Chen (a1) (a4), Ambra Nanni (a2) and Antonio Lanza (a1)...

Abstract

We present a new database of alpha enhanced evolutionary tracks and isochrones, computed with PARSEC (the PAdova & TRieste Stellar Evolution Code). The new isochrones are tested against Color-Magnitude Diagrams of well studied Globular Clusters, tacking into account multiple population effects. They are also compared with observations of dwarf stars in the Solar vicinity. After these preliminary computations, we will provide the full sets of isochrones with chemical compositions suitable for Globular Clusters and Bulge stars, that will be fully implemented into galaxy simulators. We will also provide new models suitable for the analysis of unresolved stellar populations in early type galaxies.

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References

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Bressan, A., Marigo, P., Girardi, L., et al. 2012, MNRAS, 427, 127
Chen, Y., Girardi, L., Bressan, A., et al. 2014, MNRAS, 444, 2525
Kalirai, J., et al. 2012, AJ, 143, 11
Milone, J., et al. 2012, A&A, 540, A16
Sarajedini, A., et al. 2007, AJ, 133, 1658
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Proceedings of the International Astronomical Union
  • ISSN: 1743-9213
  • EISSN: 1743-9221
  • URL: /core/journals/proceedings-of-the-international-astronomical-union
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