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We present adaptive optics (AO) images of the central starburst region of thedwarf irregular galaxy IC10. The Keck 2 telescope laser guide star was used toachieve near diffraction-limited performance at H and K' (Strehls of 18% and32%, respectively). The images are centered on the putative Wolf-Rayet (W-R)object [MAC92]24. We combine our AO images with F814W data from HST. Bycomparing the K' vs. [F814W]-K' color-magnitude diagram (CMD) with theoreticalisochrones, we find that the stellar population is best represented by at leasttwo bursts of star formation, one ~ 10 Myr ago and one much older (150-500Myr). Young, blue stars are concentrated in the vicinity of [MAC92]24. Thispopulation represents an OB association with a half-light radius of about 3 pc.We resolve the W-R object [MAC92]24 into at least six blue stars. Four of thesecomponents have near-IR colors and luminosities that make them robust WN starcandidates. By matching the location of C-stars in the CMD with those in theSMC we derive a distance modulus for IC10 of about 24.5 mag. and a foregroundreddening of E(B-V) = 0.95. We find a more precise distance by locating the tipof the giant branch in the F814W, H, and K' luminosity functions. We find aweighted mean distance modulus of 24.48 +/- 0.08. The systematic error in thismeasurement, due to a possible difference in the properties of the RGBpopulations in IC10 and the SMC, is +/- 0.16 mag.Comment: 13 pages, 13 figures, ApJ in pres

Imaging of the Stellar Population of IC 10 with Laser Guide Star Adaptive Optics and theHubble Space Telescope