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

It may interest you

  • Non-refereed
    Constraining the core-rotation rate along the red-giant evolution
    The evolution of the core rotation rate of red giant stars is a key parameter in understanding the stellar behavior in the late phases of stellar evolution. Thanks to the mixed-dipole modes, we can constrain the core rotation and internal rotational gradient as a star advances through the red-giant phase. This master thesis presents a pipeline
    Muntean, N. et al.

    Advertised on:

    3
    2024
    Bibcode
    2024aecc.conf...34M
    Citations
    0
  • Non-refereed
    Identification of Superclusters and their Properties in the Sloan Digital Sky Survey
    Superclusters are the largest massive structures in the cosmic web on tens to hundreds of megaparsecs (Mpc) scales. They are the largest assembly of galaxy clusters in the Universe. Apart from a few detailed studies of such structures, their evolutionary mechanism is still an open question. In order to address and answer the relevant questions, a
    Sankhyayan, Shishir et al.

    Advertised on:

    1
    2024
    Bibcode
    2024asi..confP..81S
    Citations
    0
  • Non-refereed
    Rapid multiwavelength variability reveals jet emission in the black hole binary V404 Cygni in quiescence
    Spitzer Space Telescope observations of several quiescent black hole low mass X-ray binaries (LMXBs) have shown mid-infrared excesses above the emission of a companion star. The excess has been proposed to originate from either a relativistic jet or circumbinary disk. If the mid-IR originates in a jet, then it probes the region closest to the black
    Borowski, Eric et al.

    Advertised on:

    5
    2024
    Bibcode
    2024HEAD...2130105B
    Citations
    0