4 papers
Companions to Young Stars
Patrick J. Lowrance
Brown dwarfs occupy the important region in the mass range between stars and planets. Their existence, ambigious until only recently, and their properties give insight into stellar…
Keck adaptive optics observations of TW Hydrae Association members
Bruce Macintosh, Claire Max, Ben Zuckerman +7
Adaptive optics (AO) on 8-10 m telescopes is an enormously powerful tool for studying young nearby stars. It is especially useful for searching for companions. Using AO on the 10-m…
Finding Brown Dwarf Companions with HST/NICMOS
P. J. Lowrance, E. E. Becklin, G. Schneider +2
We present the results of a HST/NICMOS coronagraphic survey for the direct detection of substellar companions within the young TW Hydrae and Tucana Associations. At the distance of…
Substellar Companions to Nearby Stars from NICMOS Surveys
G. Schneider, E. E. Becklin, P. J. Lowrance +1
A coronagraphic imaging survey of 65 nearby stars was conducted using the Near Infrared Camera and Multi-Object Spectrometer (NICMOS) on the Hubble Space Telescope by the Instrumen…