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

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

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010xmm..prop...40l&link_type=abstract

XMM-Newton Proposal ID #06709801

Astronomy and Astrophysics

Astrophysics

Galaxies, Galactic Surveys, Ngc205

Scientific paper

We propose a deep XMM-Newton observation for the Local Group dwarf elliptical galaxy NGC205, in order to measure the collective X-ray emissivity of its old stellar populations, and to further quantify the dispersion of stellar X-ray emissivity among early-type galaxies. A 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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