SSP seminar

The SUPERBLINK proper motion survey: a voice for the common star

Sebastien Lépine (American Museum of Natural History)

Monday 26th January 2009, 12:00pm
Pratt conference room, 60 Garden Street

The low-mass stars better known as "red dwarfs" are the dominant species of Hydrogen-burning bodies in our Galaxy and, for that matter, in the Universe. These elusive objects shine little but live long, and some are true fossils of the early ages of Galaxy evolution. Ubiquitous in the Solar neighborhood, they are now viewed as highly promising targets for exoplanet surveys. I will present recent results from the SUPERBLINK proper motion survey, whose objective is the identification of the ~300,000 red dwarfs believed to reside within only 100 parsecs of the Sun. I will show that, with easy-to-measure kinematics and metallicity (and not-so-easy to measure ages), low-mass dwarfs and subdwarfs may prove to be powerful tracers of Galactic structure and evolution.


Section Photo