Hot gas and magnetic fields as sensitive tracers of galactic interactions

Details Hot gas and magnetic fields as sensitive tracers of galactic interactions Hot gas and magnetic fields as sensitive tracers of galactic interactions

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005xmm..prop..110e&link_type=abstract

XMM-Newton Proposal ID #04028301

Physics

Galaxies, Galactic Surveys, Ngc 4414, Xmm-Newton Proposal 04028301

Scientific paper

We propose to complete our study of the hot gas distribution in the apparently isolated spiral galaxy NGC 4414. This galaxy is especially interesting as our magnetic field observations show strong effects of external influences, whereas in the optical domain almost no signs of such effects are observed. We propose a study of the hot diffuse gas in NGC 4414 to build up a physical scenario of the galactic interactions and to distinguish between basic interaction mechanisms, namely gravitational encounters and ram pressure stripping. The second possibility would imply that an ablation by the external gas may be important even in galaxies thought to be isolated.

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