X-RAY GALAXY HALOS AS A CONSEQUENCE OF INFALLING OR OUTFLOWING GASquestionMark

Current cosmological models predict gaseous Xray halos in star forming spiraledgeon galaxies as a consequence of infalling hot gas from the halo onto thedisk. In complete contradiction are models of the ISM, because they attributethe presence of hot halo gas to star forming activity in the disk and assume alarge scale transport of matter from the disk into the halo. In order to testthe second scenario we propose to use XMMNewton and observe the Xray emissionof three edgeon galaxies known to possess extended diffuse ionized gas (DIG)and radio continuum halos and search for associated star formation induced hotXray halos. This, together with previously obtained multiwavelengthobservations would allow us to check the infall vs. the outflow model. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]