Previous | Session 98 | Next | Author Index | Block Schedule
M. Liu, D. Looper (IfA/U.Hawaii), S. Leggett (UKIRT/JAC), D. Golimowski (Johns Hopkins Univ.), A. Burgasser (MIT), D. Kirkpatrick (IPAC/Caltech), X. Fan (U.Arizona), T. Geballe (Gemini Observatory), K. Cruz (AMNH), N. Reid (STScI)
We are conducting an imaging survey of the coolest known brown dwarfs using the new Keck laser guide star adaptive optics (LGS AO) system. Our goals are (1) to assess the binary frequency of ultracool (late-L and T-type) brown dwarfs; (2) to find new substellar binaries suitable for dynamical mass determinations; (3) to study the physical processes of substellar photospheres using binaries, which constitute systems of common metallicity and age; and (4) to search for objects of exceptionally low temperature as companions to nearby brown dwarfs. We present newly discovered L and T~dwarf binaries related to each of these goals. LGS AO is a key capability for this science as it provides the highest possible angular resolution for near-IR imaging.
This work has been funded by the NSF and the Alfred P. Sloan Foundation.
If you would like more information about this abstract, please follow the link to http://www.ifa.hawaii.edu/~mliu. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser.
The author(s) of this abstract have provided an email address for comments about the abstract: mliu@ifa.hawaii.edu
Previous | Session 98 | Next
Bulletin of the American Astronomical Society, 37 #4
© 2005. The American Astronomical Soceity.