Dependence of gaseous halo properties on star formation activity in NGC 7090

We propose to reobserve NGC7090, after most of the originally scheduled time waslost to high radiation background. Preliminary results of 7.1 ks of observationsindicate the presence of extended soft Xray emission in its halo, south of thenuclear area, an indication that NGC7090 is a suitable target for studies ofgaseous halos. Deeper observations will allow us to perform EPIC imaging andspectroscopy to tell, as part of a multiwavelength observing campaign, whetherthe halo of the lowmass spiral NGC7090 with a moderate level of star formation(SF) is different from those of other, more massive spirals with higher SFrates. All are expected to have Xray halos associated with other tracers ofextraplanar gas, such as synchrotron radio continuum and Halpha line emission. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]