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Testing for Photometric Variability at the L/T Boundary

Published online by Cambridge University Press:  26 May 2016

Melissa L. Enoch ,
Michael E. Brown  and
Adam J. Burgasser
Melissa L. Enoch
Affiliation:
Caltech, MS 105–24, Pasadena, CA, 91125
Michael E. Brown
Affiliation:
Caltech, MS 150-21, Pasadena, CA, 91125
Adam J. Burgasser
Affiliation:
UCLA, 8965 Math Sciences Bldg, Los Angeles, CA, 90095

Abstract

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We construct Ks-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.

Type
Part 8. Activity and Weather
Information
Symposium - International Astronomical Union , Volume 211: Brown Dwarfs , 2003 , pp. 459 - 460
Copyright
Copyright © Astronomical Society of the Pacific 2001 

References

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