AAS 197, January 2001
Session 38. Gas in External Galaxies
Display, Tuesday, January 9, 2001, 9:30am-7:00pm, Exhibit Hall

## [38.16] Emission-line Imaging of the Local Group Starburst Galaxy IC 10

D. B. Zucker (U. Washington)

The Local Group dwarf galaxy IC 10 is currently undergoing an extensive burst of star formation, as indicated by its luminous \ion{H}{2} regions and a high density of Wolf-Rayet stars. As part of a multi-wavelength study, we have obtained images of this remarkable galaxy with H\alpha, H\beta, [\ion{S}{2}], and [\ion{O}{3}] filters at the Apache Point Observatory 3.5m telescope. The complex morphology noted in prior H\alpha observations is seen in the other emission lines, although the high line-of-sight reddening (E(B-V) ~0.85) severely limits our sensitivity in H\beta and [\ion{O}{3}]. We are using these data to identify candidate supernova remnants and Wolf-Rayet shells, and, in conjunction with longslit spectra, to obtain reddening measurements for the major \ion{H}{2} regions.