Stellar X-ary Emissivity in Early-type Galaxies: The Local Group Census

Details Stellar X-ary Emissivity in Early-type Galaxies: The Local Group Census Stellar X-ary Emissivity in Early-type Galaxies: The Local Group Census

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009xmm..prop...83l&link_type=abstract

XMM-Newton Proposal ID #06522101

Astronomy and Astrophysics

Astrophysics

Galaxies, Galactic Surveys, Ngc185

Scientific paper

We propose deep XMM-Newton observations for three dwarf elliptical galaxies, NGC147, NGC185, and NGC205, in the Local Group, in order to measure and quantify the dispersion of the collective X-ray emissivity from old stellar populations. Precise knowledge of this kind is crucial not only for understanding the relevant stellar astrophysics but also for reliably disentangling and quantifying the thermal emission from diffuse hot gas in nearby galaxies.

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