357 citations · 667 across the 9 of their papers we have counts for
9 papers
A Comprehensive Spectroscopic Analysis of DB White Dwarfs
P. Bergeron, F. Wesemael, Pierre Dufour +9
We present a detailed analysis of 108 helium-line (DB) white dwarfs based on model atmosphere fits to high signal-to-noise optical spectroscopy. We derive a mean mass of 0.67 Mo fo…
Multiwavelength Observations of the Hot DB Star PG 0112+104
P. Dufour, S. Desharnais, F. Wesemael +8
We present a comprehensive multiwavelength analysis of the hot DB white dwarf PG 0112+104. Our analysis relies on newly-acquired FUSE observations, on medium-resolution FOS and GHR…
A Spectroscopic Analysis of Blue Stragglers, Horizontal Branch and Turn-Off Stars in Four Globular Clusters
Orsola De Marco, Michael M. Shara, D. Zurek +4
We present a spectroscopic analysis of HST/STIS and FOS low- and intermediate-resolution spectroscopy of 55 stars (turn-off stars, horizontal branch stars and blue stragglers) in f…
On the Origin of Subdwarf B Stars and Related Metal-Rich Binaries
Elizabeth M. Green, James Liebert, Rex A. Saffer
Mounting evidence from subdwarf B (sdB) stars in the galactic field and their recently discovered counterparts in old open clusters indicates that at least two thirds of local disk…
The Binary Origins of Hot Subdwarfs: New Radial Velocities
Rex A. Saffer, Elizabeth M. Green, Timothy P. Bowers
Multiple radial velocity observations have been obtained for a large sample of local field subdwarf B (sdB) stars over a period of two years. SdB stars appear to fall into three di…
Optical spectroscopy of the candidate luminous white dwarf in the young LMC cluster NGC1818
M. R. Burleigh, R. A. Saffer, G. F. Gilmore +1
An optical spectrum of the Elson et al. (1998) candidate luminous white dwarf in the young LMC cluster NGC1818 shows conclusively that it is not a degenerate star. A model atmosphe…