3 papers
astro-ph2000
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,…
astro-ph2000
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,…
astro-ph1996
The White Dwarf Distance to the Globular Cluster NGC 6752 (and its Age) with the Hubble Space Telescope (Based on observations made with the NASA/ESA Hubble Space Telescope (HST))
Alvio Renzini, Angela Bragaglia, Francesco R. Ferraro +6
Deep Hubble Space Telescope (HST) observations with WFPC2 of the nearby globular cluster NGC 6752 have allowed us to obtain accurate photometry for the cluster white dwarfs (WD). A…