The Extended Hot Halo of NGC3079

Details The Extended Hot Halo of NGC3079 The Extended Hot Halo of NGC3079

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21724501d&link_type=abstract

American Astronomical Society, AAS Meeting #217, #245.01; Bulletin of the American Astronomical Society, Vol. 43, 2011

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Scientific paper

NGC3079 is a nearby edge-on galaxy harboring a composite starburst-AGN nucleus and a disk with a high starformation rate. Earlier observations showed an expanding bubble in the nucleus and some hot gas above the disk. Using XMM-NEWTON data we now trace the hot halo of NGC 3079 to much larger distances and show that the global structure is X-shaped, a configuration similar to the one observed for cosmic ray halos of several galaxies in the radio-continuum (e.g. in NGC 5775).This large scale distribution of the X-ray halo is discussed in comparison to radio-continuum and Halpha data.
The X-ray observations have sufficient statistics to allow for spectral analysis at different radial distances from the disk and to search for temperature differences. We also investigate the interaction of the hot halo gas with companion galaxies.
This work is supported by DLR Verbundforschung "Extraterrestrik".

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