Testing for Photometric Variability at the L/T Boundary

Details Testing for Photometric Variability at the L/T Boundary Testing for Photometric Variability at the L/T Boundary

Jun 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003iaus..211..459e&link_type=abstract

Brown Dwarfs, Proceedings of IAU Symposium #211, held 20-24 May 2002 at University of Hawaii, Honolulu, Hawaii. Edited by Eduard

Astronomy and Astrophysics

Astronomy

Scientific paper

We construct K_s-band light curves for nine field L and T brown dwarfs using the Palomar 60 inch Telescope. Results of a robust statistical analysis indicate that about half the targets show significant evidence for variability. Two of these variable targets have marginally significant peaks in the Lomb-Scargle periodogram. The phased light curves show evidence for periodic behavior on timescales of about 1.5 and 3.0 hours.

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