NOAO >   Observing Info >   Approved Programs >   2009B-0411

Small NOAO Logo

Proposal Information for 2009B-0411


PI: Bernadette Rodgers, Gemini Observatory - South, brodgers@gemini.edu
Address: Gemini Observatory, Colina El Pino s/n, La Serena, Chile

CoI: Sandrine Thomas, UC Santa Cruz / UCO Lick Observatory
CoI: Nicole van der Bliek, Cerro Tololo Interamerican Observatory
CoI: Greg Doppmann, NOAO

Title: Expanding Herbig Ae/Be Multiplicity Survey to Southern Hemisphere

Abstract: We propose to use NICI on Gemini South to expand our successful multiplicity study to the southern hemisphere. Using NIRI+Altair on Gemini North, we have surveyed a large number of northern Herbig Ae/Be stars (143) and detected likely companions around approximately 2/3 of them. This work has increased the known companion sample by nearly a factor of 10, and uncovered several unique and interesting systems. Identifying and understanding companions to intermediate mass pre-main sequence stars enlightens our understanding of star formation as a function of mass (the primaries span 1.5-10 solar masses), and as a function of immediate stellar environment.


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 >   2009B-0411

noaoprop-help@noao.edu

Small NOAO Logo