STRONG BRIGHTNESS VARIATIONS SIGNAL CLOUDY-TO-CLEAR TRANSITION OF BROWN DWARFS

We report the results of a J-band search for cloud-related variability in the atmospheres of 62 L4-T9 dwarfs using the Du Pont 2.5 m telescope at Las Campanas Observatory and the Canada-France-Hawaii Telescope on Mauna Kea. We find 9 of 57 objects included in our final analysis to be significantly v...

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Veröffentlicht in:	The Astrophysical journal 2014-10, Vol.793 (2), p.1-29
Hauptverfasser:	Radigan, Jacqueline, Lafreniere, David, Jayawardhana, Ray, ARTIGAU, ETIENNE
Format:	Artikel
Sprache:	eng
Schlagworte:	AMPLITUDES ASTROPHYSICS ASTROPHYSICS, COSMOLOGY AND ASTRONOMY Brightening BRIGHTNESS Clouds COLOR CONDENSATES Confidence DISTRIBUTION DUSTS DWARF STARS Mathematical models OPACITY PHOTOSPHERE PLANETS SENSITIVITY Spectra SPIN STARS STELLAR ATMOSPHERES SURFACES SYMMETRY TELESCOPES
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