Unresolved Hα Enhancements at High Galactic Latitude in the WHAM Sky Survey Maps

Details Unresolved Hα Enhancements at High Galactic Latitude in the WHAM Sky Survey Maps Unresolved Hα Enhancements at High Galactic Latitude in the WHAM Sky Survey Maps

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...20513902c&link_type=abstract

American Astronomical Society Meeting 205, #139.02; Bulletin of the American Astronomical Society, Vol. 36, p.1573

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Scientific paper

We have identified 85 regions of enhanced Hα emission at |b| > 10° subtending approximately 1° or less on the Wisconsin Hα Mapper (WHAM) sky survey. These high latitude ``WHAM point sources'' have Hα 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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