22 citations · 51 across the 8 of their papers we have counts for
8 papers
A comprehensive near and far ultraviolet spectroscopic study of the hot DA white dwarf G191-B2B
Simon P. Preval, Martin A. Barstow, Jay B. Holberg +1
We present a detailed spectroscopic analysis of the hot DA white dwarf G191-B2B, using the best signal to noise, high resolution near and far UV spectrum obtained to date. This is…
Towards a standardised line list for G191-B2B, and other DA type objects
Simon P. Preval, Martin A. Barstow, Jay B. Holberg +1
We present a comprehensive analysis of the far UV spectrum of G191-B2B over the range of 900-1700Å using co-added data from the FUSE and STIS archives. While previous identificatio…
A photospheric metal line profile analysis of hot DA white dwarfs with circumstellar material
Nathan J. Dickinson, Martin A. Barstow, Barry Y. Welsh
Some hot DA white dwarfs have circumstellar high ion absorption features in their spectra, in addition to those originating in the photosphere. In many cases, the line profiles of…
An analysis of metallic high ion absorption line profiles at DA white dwarfs with circumstellar material
Nathan J. Dickinson, Martin A. Barstow, Barry Y. Welsh
Some hot DA stars exhibit circumstellar absorption in the metal resonance lines in their spectra. In many cases, these circumstellar features are unresolved from those originating…
The metal content of hot DA white dwarf spectra
Nathan Dickinson
A study of high ion metal absorption features present in the spectra of hot DA white dwarfs is presented. An analysis of three DAs is performed, where previous studies came to conf…
The origin of circumstellar features in the spectra of hot DA white dwarfs
N. J. Dickinson, M. A. Barstow, B. Y. Welsh +4
We have analysed a sample of 23 hot DAs to better understand the source of the circumstellar features reported in previous work. Unambiguous detections of circumstellar material ar…