CLOUDS, Continuous Longitude Observations of Ultracool DwarfS

Details CLOUDS, Continuous Longitude Observations of Ultracool DwarfS CLOUDS, Continuous Longitude Observations of Ultracool DwarfS

Jun 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...200.9201c&link_type=abstract

American Astronomical Society, 200th AAS Meeting, #92.01; Bulletin of the American Astronomical Society, Vol. 34, p.953

Astronomy and Astrophysics

Astronomy

Scientific paper

CLOUDS (Continuous Longitude Observations of Ultracool DwarfS) is a new international collaboration dedicated to the study of brown dwarf variability. In early April we observed 14 late dwarfs and brown dwarfs with spectral types ranging from M9.5 to T6. Among the observed targets, six are reportedly variable in one bandpass, one was reported stable in the far red, and for seven there are no published observations regarding their variability. We conducted nearly continuous observations with telescopes in India, France, the Canaries, the Americas and Hawaii. Observations included simultaneous multiwavelength photometric observations from the far red to the near-infrared, mid-infrared photometry and near-infrared and Hα follow-up spectroscopy for sub-samples. In this poster we present the scope of our data-set and we report on our reduction and analysis status.

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