AAS 205th Meeting, 9-13 January 2005
Session 139 The Ionized ISM: Observations and Theory
Poster, Thursday, January 13, 2005, 9:20am-4:00pm, Exhibit Hall

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[139.02] Unresolved H\alpha Enhancements at High Galactic Latitude in the WHAM Sky Survey Maps

V. Chaudhary, R. J. Reynolds, G. J. Madsen, L. M. Haffner (UW Madison)

We have identified 85 regions of enhanced H\alpha emission at |b| > 10\arcdeg subtending approximately 1\arcdeg or less on the Wisconsin H\alpha Mapper (WHAM) sky survey. These high latitude ``WHAM point sources'' have H\alpha fluxes of 10-11 to 10-9 erg cm-2 s-1, radial velocities within about 70 km s-1 of the LSR, and line widths that range from less than 20 km s-1 to about 80 km s-1 (FWHM). Twenty nine of these enhancements are not identified with either cataloged nebulae or hot stars and appear to have kinematic properties that differ from those observed for planetary nebulae. Another 14 enhancements are near hot evolved low mass stars that had no previously reported detections of associated nebulosity. The remainder of the enhancements are cataloged planetary nebulae and small, high latitude H~II regions surrounding massive O and early B stars.

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© 2004. The American Astronomical Society.