Abundance ratios in stars vs. hot gas in elliptical galaxies

Details Abundance ratios in stars vs. hot gas in elliptical galaxies Abundance ratios in stars vs. hot gas in elliptical galaxies

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010hia....15..281p&link_type=abstract

Highlights of Astronomy, Volume 15, p. 281-281

Astronomy and Astrophysics

Astronomy

1

Galaxies: Elliptical And Lenticular, Cd - Galaxies: Abundances - X-Rays: Ism

Scientific paper

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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