Document Type
Article
Publication Title
Astronomy and Astrophysics
Abstract
We observed the pulsating hydrogen atmosphere white dwarf G 185-32 with the Whole Earth Telescope in 1992. We report on a weighted Fourier transform of the data detecting 18 periodicities in its light curve. Using the Hubble Space Telescope Faint Object Spectrograph time resolved spectroscopy, and the wavelength dependence of the relative amplitudes, we identify the spherical harmonic degree (ℓ) for 14 pulsation signals. We also compare the determinations of effective temperature and surface gravity using the excited modes and atmospheric methods, obtaining Teff = 11960 ± 80 K, log g = 8.02 ± 0.04 and M = 0.617 ± 0.024 M⊙.
DOI
10.1051/0004-6361:20031567
Publication Date
2004
Recommended Citation
Castanheira, Bárbara Garcia and Wood, Matt A., "Observations Of The Pulsating White Dwarf G 185-32" (2004). Aerospace, Physics, and Space Science Faculty Publications. 189.
https://repository.fit.edu/apss_faculty/189