Observing L and T Dwarfs with Keck LGS AO

Details Observing L and T Dwarfs with Keck LGS AO Observing L and T Dwarfs with Keck LGS AO

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...207.7812g&link_type=abstract

American Astronomical Society Meeting 207, #78.12; Bulletin of the American Astronomical Society, Vol. 37, p.1294

Physics

Optics

2

Scientific paper

We have been using the Laser Guide Star Adaptive Optics system on the Keck II telescope to observe L and T dwarfs. We present here the results of this project, including the first observations resolving the Kelu-1 binary system. This system has a separation of about 0.3 arcsec and the companions differ in K magnitude by 0.39 mag. Multi-epoch observations indicate the companion is still heading towards apastron. We will discuss this object as well as our other targets.

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