5 papers
Optical Properties and Variability of the Be X-ray binary CPD -29 2176
Clarissa M. Pavao, Noel D. Richardson, Jonathan Labadie-Bartz +2
Be X-ray binaries (Be XRBs) are high-mass X-ray binaries, with a neutron star or black hole orbiting and accreting material from a non-supergiant B-star that is rotating at a near…
A Systematic Search for Corotating Interaction Regions in Apparently Single Galactic Wolf-Rayet Stars. II. A Global View of the Wind Variability
André-Nicolas Chené, Nicole St-Louis
This study is the second part of a survey searching for large-scale spectroscopic variability in apparently single Wolf-Rayet (WR) stars. In a previous paper (Paper I), we describe…
Determination of the inclination of the multi-planet hosting star HR8799 using asteroseismology
Duncan Wright, André-Nicolas Chené, Peter De Cat +6
Direct imaging of the HR8799 system was a major achievement in the study of exoplanets. HR8799 is a \,Doradus variable and asteroseismology can provide an independent constraint…
Large-Scale Periodic Variability of the Wind of the Wolf-Rayet Star WR1 (HD 4004)
André-Nicolas Chené, Nicole St-Louis
We present the results of an intensive photometric and spectroscopic monitoring campaign of the WN4 Wolf-Rayet (WR) star WR1=HD4004. Our broadband V photometry covering a timespan…
A Systematic Search for Corotating Interaction Regions in Apparently Single Galactic WR Stars. I. Characterizing the Variability
N. St-Louis, A. -N. Chene, O. Schnurr +1
We present the results of a systematic search for large-scale spectroscopic variability in apparently single Wolf-Rayet stars brighter than ~12.5. In this first paper we characteri…