163 citations · 1k across the 33 of their papers we have counts for
6 papers · 2 filters
Nearby young stars selected by proper motion. I. Four new members of the Beta Pictoris moving group from the Tycho-2 catalog
Sebastien Lepine, Michal Simon
We describe a procedure to identify stars from nearby moving groups and associations out of catalogs of stars with large proper motions. We show that from the mean motion vector of…
Ultracool Subdwarfs: The Halo Population Down to the Substellar Limit
Adam J. Burgasser, Sebastien Lepine, Nicolas Lodieu +5
Ultracool subdwarfs are low luminosity, late-type M and L dwarfs that exhibit spectroscopic indications of subsolar metallicity and halo kinematics. Their recent discovery and ongo…
Parallax and Distance Estimates for Twelve Cataclysmic Variable Stars
J. R. Thorstensen, S. Lepine, M. Shara
We report parallax and distance estimates for twelve more cataclysmic binaries and related objects observed with the 2.4m Hiltner telescope at MDM Observatory. The final parallax a…
Direct spectroscopic observations of clumping in O-star winds
Sebastien Lepine, Anthony F. J. Moffat
We report the detection and monitoring of transient substructures in the radiation-driven winds of five massive, hot stars in different evolutionary stages. Clumping in the winds o…
A New All-Sky Catalog of Stars with Large Proper Motions
Sebastien Lepine, Michael M. Shara, R. Michael Rich +3
A new all-sky catalog of stars with proper motions pm>0.15"/yr is presented. The catalog is largely a product of the SUPERBLINK survey, a data-mining initiative in which the entire…
New High Proper Motion Stars from the Digitized Sky Survey. IV. Completion of the Southern Survey and 170 Additional Stars with pm>0.45 arcsec/yr
Sebastien Lepine
Completion of the SUPERBLINK proper motion survey in the southern celestial hemisphere has turned up 170 new stars with proper motion 0.45 arcsec/yr < pm < 2.0 arcsec/yr. This four…