NOAO > Observing Info > Approved Programs > 2010A-0060
|
NOAO > Observing Info > Approved Programs > 2010A-0060 |
|
PI: Andrei Tokovinin, NOAO, atokovinin@ctio.noao.edu
Address: CTIO, Casilla 603, La Serena, Chile
Title: Complete census of wide companions to nearby stars
Abstract:
Many potential binary companions to nearby stars are found in the
2MASS survey, but most of them are chance projections. The status of
300 companion candidates within 20 arcsec from a carefully selected
large sample of nearby solar-type dwarfs will be determined by a 2-nd
epoch imagery at the 1.3-m telescope. This will lead to the robust
determination of the companion mass function down to the hydrogen-
burning limit in the separation range from 500 to 1000 AU. The aim is
to complement adaptive-optics studies of low-mass stellar and sub-
stellar companions at smaller separations and to provide reference data
for the binary-formation theories.
National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360
|
NOAO > Observing Info > Approved Programs > 2010A-0060 |
|