منابع مشابه
Photometric Variability of the T2.5 Brown Dwarf Simp J013656.5+093347; Evidence for Evolving Weather Patterns
We report the discovery of a photometric variability in the bright T2.5 brown dwarf SIMP J013656.57+093347.3. Continuous J-band photometry has been obtained for several hours on four different nights. The light curves show a periodic modulation with a period of ∼2.4 hours, a peak-to-peak amplitude of ∼ 50 mmag and significant night-to-night evolution. We suggest that the light curve modulation ...
متن کاملExploring brown dwarf disks: A 1.3mm survey in Taurus
We have carried out sensitive 1.3mm observations of 20 young brown dwarfs in the Taurus star-forming region, representing the largest sample of young substellar objects targeted in a deep millimeter continuum survey to date. Under standard assumptions, the masses of brown dwarf disks range from .0.4 to several Jupiter masses. Their relative disk masses are comparable to those derived for coeval...
متن کاملThe Discovery of a Second Field Methane Brown Dwarf from Sloan Digital Sky Survey Commissioning Data.
We report the discovery of a second field methane brown dwarf from the commissioning data of the Sloan Digital Sky Survey (SDSS). The object, SDSS J134646.45-003150.4 (hereafter SDSS 1346-00), was selected because of its very red color and stellar appearance. Its spectrum between 0.8 and 2.5 µm is dominated by strong absorption bands of H2O and CH4 and closely mimics those of Gliese 229B and SD...
متن کاملA Possible Brown Dwarf Companion to the White Dwarf Gd1400
An unresolved, likely L dwarf companion to the DA white dwarf GD1400 is reported. This would be only the second such system known, discovered 17 years after the prototype L dwarf, GD165B, was determined to be a companion to a white dwarf. Photometric observations and model predicted stellar parameters of the well studied white dwarf primary indicate that GD1400B has J−K & 2.0 and MK = 12.13 mag...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2016
ISSN: 1538-4357
DOI: 10.3847/0004-637x/830/2/144