IC and RC band time-series observations of some bright ultracool dwarfs

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Date

2005

Journal Title

Journal ISSN

Volume Title

Publisher

Oxford University Press

Abstract

The results of more than 100 h of CCD photometric monitoring of 10 L dwarfs and two T dwarfs are presented. Reasonable evidence is shown for IC band variability in DENIS 0255−4700, DENIS 1705−0516 and 2M 2104−1037. Substantial brightening of the T dwarf binary Indi Bab was observed over the course of 3.6 h; it is unlikely that this could have been caused by surface spots. No unequivocal variability could be detected in the RC band.

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Keywords

Stars: low-mass, brown dwarfs, Stars: variables: other

Citation

Koen, C (2005). IC and RC band time-series observations of some bright ultracool dwarfs. Monthly Notices of the Royal Astronomical Society, 360: 1132–1142