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Discovery of the first young brown dwarf in the Serpens cluster

N. Lodieu, E. Caux, J.-L. Monin, A. Klotz
2002 Astronomy and Astrophysics  

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In this letter, we report the discovery of the first young early L-dwarf in the Serpens cloud. It is obscured by more than ten magnitudes of visual absorption and was found during a near infrared (NIR) photometric survey of a 50 square arcmin area in the Serpens cloud, deep enough to probe the substellar domain. After selection from NIR colour-magnitude and colour-colour diagrams, its substellar nature has been confirmed by NIR spectroscopy at the VLT. We estimate the mass of this brown dwarf
more » ... be ∼0.05 M and its age to be ∼3.5 Myr. From its NIR indices, we estimate its present spectral type to be L0-L3, and using a model its future spectral type to be T . This is the first young brown dwarf ever found deeply embedded in a star formation region. Article published by EDP Sciences and available at
doi:10.1051/0004-6361:20020034 fatcat:ku24zvbihjhxtlhvw6zg3jkzi4
Citation

N. Lodieu, E. Caux, J.-L. Monin, A. Klotz. "Discovery of the first young brown dwarf in the Serpens cluster." Astronomy and Astrophysics 383.3 (2002) L15-L18