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The First Young Brown Dwarf in the Serpens Cloud

Published online by Cambridge University Press:  26 May 2016

Jean-Louis Monin ,
Emmanuel Caux ,
Alain Klotz  and
Nicolas Lodieu
Jean-Louis Monin
Affiliation:
Observatoire de Grenoble Laboratoire d'Astrophysique BP 53 38041 Grenoble cedex
Emmanuel Caux
Affiliation:
CESR CNRS-UPS, BP 4346, 31028 – Toulouse cedex 04, France
Alain Klotz
Affiliation:
CESR CNRS-UPS, BP 4346, 31028 – Toulouse cedex 04, France
Nicolas Lodieu
Affiliation:
Astrophysikalisches Institut Potsdam, An der Sternwarte 16, D-14482 Potsdam, Germany

Abstract

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We report the discovery of the first young brown dwarf in the Serpens cloud (BD-Ser 1). It is obscured by more than ten magnitudes of visual absorption as indicated by near infrared (NIR) photometric survey at the NTT and confirmed by NIR spectroscopy at the VLT. We estimate the mass of this brown dwarf to be M ~ 0.05 M⊙ and its age to be ~ 3.5 Myr. Available NIR indices in the literature (designed for field brown dwarfs) fail to provide its current spectral type but using a model they correctly determine its future spectral type to be T. This is the first young brown dwarf ever found deeply embedded in the Serpens star formation region

Type
Part 2. Observations of Recently Born Substellar Objects
Information
Symposium - International Astronomical Union , Volume 211: Brown Dwarfs , 2003 , pp. 83 - 86
Copyright
Copyright © Astronomical Society of the Pacific 2001 

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