Fig. 1
Locations of the 12 candidate HeII nebulae (seven HII regions and five SNRs) superimposed on the Hα image from the NOAO Survey of Resolved Stellar Content of Local Group Galaxies (PI: P. Massey). The labeled ID of the seven HII regions correspond to the first column of Table 1. North and South fields of M 33 are shown by the top and bottom figures, respectively. Angular size is 0.5° × 0.5°. The spatial resolution is 0.26″/pix. North is up and east to the left.
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