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Discovery of two L & T binaries with wide separations and peculiar photometric properties
Étienne Artigau, David Lafrenière, René Doyon +6
We present spatially resolved photometric and spectroscopic observations of two wide brown dwarf binaries uncovered by the SIMP near-infrared proper motion survey. The first pair (…
A Near-Infrared Survey of the Inner Galactic Plane for Wolf-Rayet Stars II. Going Fainter: 71 More New WR Stars
Michael M. Shara, Jacqueline K. Faherty, David Zurek +5
We are continuing a J, K and narrow-band imaging survey of 300 square degrees of the plane of the Galaxy, searching for new Wolf-Rayet stars. Our survey spans 150 degrees in Galact…
The VAST Survey - I. Companions and the unexpected X-ray detection of B6-A7 stars
Robert J. De Rosa, Joanna Bulger, Jenny Patience +8
With an adaptive optics imaging survey of 148 B6-A7 stars, we have tested the hypothesis that unresolved lower-mass companions are the source of the unexpected X-ray detections of…