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Abundance ratios in stars vs. hot gas in elliptical galaxies

  • Antonio Pipino (a1)
Abstract

I present predictions from a chemical evolution model for a self-consistent study of optical (i.e., stellar) and X-ray (i.e., gas) properties of present-day elliptical galaxies. Detailed cooling and heating processes in the interstellar medium are taken into account and allow a reliable modelling of the SN-driven galactic wind. The model simultaneously reproduces the mass-metallicity, colour-magnitude, LX - LB and LX - T relations, and the observed trend of [Mg/Fe] with σ. The "iron discrepancy" can be solved by taking into account the dust presence.

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Copyright
References
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Calura, F., Pipino, A., & Matteucci, F., 2008, A&A 479, 669
François, P., Matteucci, F., Cayrel, R., Spite, M., Spite, F., & Chiappini, C., 2004, A&A 421, 613
Pipino, A., Kawata, D., Gibson, B. K., & Matteucci, F., 2005, A&A 434, 553
Pipino, A., D'Ercole, A., & Matteucci, F., 2008, A&A 484, 679
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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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