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Photometric variability of the unique magnetic white dwarf GD356
C. S. Brinkworth, M. R. Burleigh, G. A. Wynn +1
GD356 is a magnetic white dwarf (B = 13MG) that uniquely displays weak resolved Zeeman triplets of Halpha and Hbeta in emission. As such, GD356 may be the only known white dwarf wi…
Observations of the pulsating subdwarf B star Feige 48: Constraints on evolution and companions
M. D. Reed, S. D. Kawaler
Since pulsating subdwarf B (sdBV or EC14026) stars were first discovered (Kilkenny et al, 1997), observational efforts have tried to realize their potential for constraining the in…
A comparison of DA white dwarf temperatures and gravities from FUSE Lyman line and ground-based Balmer line observations
M. A. Barstow, S. A. Good, M. R. Burleigh +3
Observation of the strengths and profiles of the hydrogen Balmer absorption series is an established technique for determining the effective temperature and surface gravity of hot…
Heavy element abundance patterns in hot DA white dwarfs
M. A. Barstow, S. A. good, J. B. Holberg +5
We present a series of systematic abundance measurements for 25 hot DA white dwarfs in the temperature range ~20000-110000K, based on far-UV spectroscopy with STIS/GHRS on HST, IUE…