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Orbital Parameters and Chemical Composition of Four White Dwarfs in Post-Common Envelope Binaries
Adela Kawka, Stephane Vennes, Jean Dupuis +2
We present FUSE observations of the hot white dwarfs in the post-common envelope binaries Feige 24, EUVE J0720-317, BPM 6502, and EUVE J2013+400. The spectra show numerous photosph…
Observations and asteroseismic analysis of the rapidly pulsating hot B subdwarf PG 0911+456
S. K. Randall, E. M. Green, V. Van Grootel +11
The principal aim of this project is to determine the structural parameters of the rapidly pulsating subdwarf B star PG 0911+456 from asteroseismology. Our work forms part of an on…
Evidence for deuterium astration in the planetary nebula Sh2-216?
Cristina M Oliveira, Pierre Chayer, H. Warren Moos +2
We present FUSE observations of the line of sight to WD0439+466 (LS V +46 21), the central star of the old planetary nebula Sh2-216. The FUSE data shows absorption by many interste…
Iron in Hot DA White Dwarfs
Stephane Vennes, Pierre Chayer, Jean Dupuis +1
We present a study of the iron abundance pattern in hot hydrogen-rich (DA) white dwarfs. The study is based on new and archival far ultraviolet spectroscopy of a sample of white dw…
Variations in D/H and D/O from New FUSE Observations
C. M. Oliveira, H. Warren Moos, Pierre Chayer +1
We use data obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE) to determine the interstellar abundances of DI, NI, OI, FeII, and H2 along the sigh tlines to WD1034+001…
The Deuterium, Oxygen, and Nitrogen Abundance Toward LSE 44
S. D. Friedman, G. Hebrard, T. M. Tripp +2
We present measurements of the column densities of interstellar DI, OI, NI, and H2 made with FUSE, and of HI made with IUE toward the sdO star LSE 44, at a distance of 554+/-66 pc.…