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Paper: Analysis of HST and IUE Data of the DBV Star PG1351+489
Volume: 334, 14th European Workshop on White Dwarfs
Page: 561
Authors: Alves, V.M.; Costa, J.E.S.; Kepler, S.O.; Koester, D.
Abstract: We fitted the 1996 HST FOS and the 1985 IUE ultraviolet spectra of the DB pulsating star PG1351+489 with theoretical models for the flux curves as functions of wavelength, to obtain the best values for Teff and log g for this star. We found Teff = 24018 ± 280 K and log g = 7.70 ± 0.06 for the HST data and Teff = 22470 ± 262 K and log g = 7.78 ± 0.06 for the IUE data. The fitting also allowed the determination of the distance of the star: for a radius of R=9000 km, consistent with this mass and temperature, we found a distance of 181 ± 7 pc for HST data and 169 ± 31 pc for IUE data.
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