5 papers · 2 filters
Heavy element abundances in DA white dwarfs
M. A. Barstow, M. R. Burleigh, N. P. Bannister +4
We present a series of systematic abundance measurements for a group of hot DA white dwarfs in the temperature range 20,000-75,000K, based on far-UV spectroscopy with STIS on HST,…
FUSE Observations of the hottest DA white dwarfs
M. A. Barstow, M. R. Burleigh, N. P. Bannister +2
We report early FUSE observations of the very hot DA white dwarfs PG1342+444 and REJ0558-371. Detection of photospheric absorption lines allows us to estimate the abundances of C,…
Resolving Sirius-like binaries with the Hubble Space Telescope
Matt Burleigh, Martin Barstow, Howard E. Bond +1
We have imaged seventeen recently discovered Sirius-like binary systems with HST/WFPC2 and resolved the white dwarf secondary in eight cases. Most of the implied orbital periods ar…
Spectroscopic confirmation of a white dwarf companion to the B star 16 Dra
Matt Burleigh, Martin Barstow
Using an Extreme Ultraviolet Explorer (EUVE) spectrum, we confirm the identification of a white dwarf companion to the B9.5V star 16 Dra (HD150100), and constrain its surface tempe…
The Schweizer-Middleditch star revisited
M. R. Burleigh, U. Heber, D. O'Donoghue +1
We have re-observed and re-analysed the optical spectrum of the Schweizer-Middleditch star, a hot subdwarf which lies along almost the same line-of-sight as the centre of the histo…