Testing Galaxy Formation Models with Massive Spiral Galaxies

Details Testing Galaxy Formation Models with Massive Spiral Galaxies Testing Galaxy Formation Models with Massive Spiral Galaxies

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010xmm..prop..132f&link_type=abstract

XMM-Newton Proposal ID #06731702

Physics

Galaxies, Galactic Surveys, Ngc1961, Ngc6753

Scientific paper

We propose to test galaxy formation models by characterizing the outer hot coronae of two very massive spiral galaxies. Theoretical models predict X-ray emission (L_x>10^{40} ergs/s) at large radii around massive spiral galaxies. This emission is a fundamental prediction of current formation models that successfully predict many observed galaxy properties. We have selected two galaxies, NGC1961 and NGC6753, that are optically luminous, undisturbed, with moderate star formation rates, and that can be probed to sufficiently large radii (25-50 kpc) within the large XMM FOV with 52ks and 64ks observations. We will derive the X-ray gas density profiles and the mean gas temperature of the extended, hot coronae for these two galaxies.

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