Discovery of a Nearby Young Brown Dwarf Disk
M. C. Schutte (1), K. D. Lawson (1), J. P. Wisniewski (1), M. J., Kuchner (2), S. M. Silverberg (3), J. K. Faherty (4), D. C. Bardalez, Gagliuffi (4), R. Kiman (4, 5), J. Gagn\'e (6), A. Meisner (7), A. C., Schneider (8), A. S. Bans (9), J. H. Debes (10), N. Kovacevic (11)

TL;DR
This paper reports the discovery of the youngest brown dwarf with a circumstellar disk, providing insights into brown dwarf formation and early evolution, with detailed spectral and disk modeling confirming its youth and properties.
Contribution
It presents the first identification of a young brown dwarf with a disk at 102 pc, including detailed spectral and disk modeling, and establishes its association with the $ m extit{ε}$~Cha group.
Findings
The brown dwarf is approximately 3.7 Myr old.
It hosts a Class II type warm disk with a temperature of 521 K.
The object has a mass between 42-58 Jupiter masses.
Abstract
We report the discovery of the youngest brown dwarf with a disk at 102 pc from the Sun, WISEA~J120037.79-784508.3 (W1200-7845), via the Disk Detective citizen science project. We establish that W1200-7845 is located in the 3.7 Myr-old ~Cha association. Its spectral energy distribution (SED) exhibits clear evidence of an infrared (IR) excess, indicative of the presence of a warm circumstellar disk. Modeling this warm disk, we find the data are best fit using a power-law description with a slope , which suggests it is a young, Class II type disk. Using a single blackbody disk fit, we find and . The near-infrared spectrum of W1200-7845 matches a spectral type of M6.0, which corresponds to a low surface gravity object, and lacks distinctive signatures of strong Pa or…
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Taxonomy
TopicsStellar, planetary, and galactic studies · Astrophysics and Star Formation Studies · Astronomy and Astrophysical Research
