Variability in brown dwarfs: atmospheres and transits

Bibcode
2002ESASP.485..261C
Caballero, J. A.; Rebolo, R.
Bibliographical reference

In: Proceedings of the First Eddington Workshop on Stellar Structure and Habitable Planet Finding, 11 - 15 June 2001, Córdoba, Spain. Editor: B. Battrick, Scientific editors: F. Favata, I. W. Roxburgh & D. Galadi. ESA SP-485, Noordwijk: ESA Publications Division, ISBN 92-9092-781-X, 2002, p. 261 - 264

Advertised on:
1
2002
Number of authors
2
IAC number of authors
0
Citations
6
Refereed citations
5
Description
We have obtained series of continuous differential photometry in the J and KS bands for several L-type dwarfs. We intend to search for photometric variability in order to: - investigate the variability amplitude associated to atmospheric changes in time-scales from minutes to several hours, - investigate rotation periods through light curve modulation due to superficial inhomogeneities, - set constraints on the frequency of flares in these fully convective objects, - search for transits of brown dwarfs and planetary companions in very close orbits (including habitable zones). First results obtained for the brown dwarf 2M1146+22 are presented.
Type
Non-refereed
Infrared astronomy

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