XMM-Newton Proposal 02063002

Details XMM-Newton Proposal 02063002 XMM-Newton Proposal 02063002

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003xmm..prop..326p&link_type=abstract

XMM-Newton Proposal ID #02063002

Physics

Ngc 5170, Ngc 5746, Xmm-Newton Proposal 02063002

Scientific paper

The luminosity of X-ray haloes around disc galaxies is a crucial quantity for constraining theories for the assembly of disc galaxies. We have compiled a unique, physically realistic sample of hydrodynamical simulations of disc galaxy formation and evolution, predicting present day X-ray halo luminosities and the spatial distribution of the X-ray emission. Here we propose to test these novel models by obtaining deep XMM-Newton pointings of two massive, nearby, edge-on disc galaxies. A detection of X-ray haloes around these massive disc galaxies will for the first time prove that disc formation is on-going today. Alternatively, a non-detection will require a major re-thinking of the currently accepted scenario for assembling disc galaxies.

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