Metal Abundance in Young Elliptical Galaxies

Details Metal Abundance in Young Elliptical Galaxies Metal Abundance in Young Elliptical Galaxies

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008xmm..prop...53k&link_type=abstract

XMM-Newton Proposal ID #06020103

Physics

Galaxies, Galactic Surveys, Ngc 720, Ngc 3923

Scientific paper

We propose deep XMM-Newton observations of young, post-merger elliptical galaxies. Because their L_X/L_B ratios are low among ellipticals and their stellar populations are significantly metal-enriched, these galaxies are the best candidates to address the biggest unsolved problem of the X-ray study of elliptical galaxies: stellar vs ISM metal abundance discrepancy. Our data, in conjunction with the existing Chandra data will allow us to accurately determine Fe and alpha-elements abundances and to confirm the presence or absence of the relation between L_X/L_B and the metallicity. We will then address various evolutionary scenarios via metal enrichment history.

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