142 citations · 1.3k across the 30 of their papers we have counts for
5 papers · 1 filter
Calibration of the Mixing-Length Theory for Convective White Dwarf Envelopes
P. -E. Tremblay, H. -G. Ludwig, B. Freytag +3
A calibration of the mixing-length parameter in the local mixing-length theory (MLT) is presented for the lower part of the convection zone in pure-hydrogen atmosphere white dwarfs…
Spectral analysis and abundances of the post-HB star HD 76431
V. Khalack, B. Yameogo, F. LeBlanc +4
HD76431 is a slow rotating post-HB star that shows an underabundance of helium by 0.5 dex relative to the solar value. These observational facts suggest that atomic diffusion could…
A Helium-Carbon Correlation on the Extreme Horizontal Branch in Centauri
Marilyn Latour, Suzanna K. Randall, Gilles Fontaine +3
Taking advantage of a recent FORS2/VLT spectroscopic sample of Extreme Horizontal Branch (EHB) stars in Cen, we isolate 38 spectra well suited for detailed atmospheric studies…
Long-term monitoring of PKS 2155304 with ATOM and H.E.S.S.: investigation of optical/-ray correlations in different spectral states
A. Abramowski, F. Aharonian, F. Ait Benkhali +225
In this paper we report on the analysis of all the available optical and very high-energy -ray (200 GeV) data for the BL Lac object PKS 2155304, collected simultaneously w…
Improved determination of the atmospheric parameters of the pulsating sdB star Feige 48
M. Latour, G. Fontaine, E. M. Green +2
As part of a multifaceted effort to exploit better the asteroseismological potential of the pulsating sdB star Feige 48, we present an improved spectroscopic analysis of that star…