Spectroscopy of early - type star candidates in M 33 and NGC 6822 . II
نویسنده
چکیده
We present ground-based spectra of early-type star candidates in the Local Group galaxies M 33 and NGC 6822 taken at the 4.2 m William Herschel Telescope (La Palma, Spain). Photospheric parameters Teff and log g were derived by LTE modeling of the Balmer lines. When possible, mass-loss rates were calculated from the Hα profiles computing emission and scattering in the wind with the method of Scuderi et al. (1992). Five hot star candidates were found in M 33, out of seven stars analyzed, and two out of three in NGC 6822.
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