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What Do Young Brown Dwarfs Tell Us About Exoplanets?

Published online by Cambridge University Press:  27 January 2016

Katelyn N. Allers ,
Michael C. Liu  and
Trent J. Dupuy
Katelyn N. Allers
Affiliation:
Department of Physics and Astronomy, Bucknell University, Lewisburg, PA 17837, USA email: [email protected]
Michael C. Liu
Affiliation:
Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822, USA
Trent J. Dupuy
Affiliation:
Department of Astronomy, The University of Texas at Austin, 2515 Speedway C1400, Austin, TX 78712, USA
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Abstract

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In recent years, all-sky surveys have uncovered a new and interesting population of young (≈10–200 Myr), nearby substellar objects. Many of these objects have inferred masses and temperatures that overlap those of directly imaged exoplanets. These young brown dwarfs provide valuable analogs to young, dusty exoplanets in a context where detailed spectroscopic observations across a broad range of wavelengths and at high S/N are possible. How do the temperatures inferred by atmospheric models and evolutionary models compare? Can we determine the formation mechanism of a young planetary-mass object? How well do we understand the role that disequilibrium chemistry and dust clouds play in the atmospheres of these objects? We review the successes and challenges in determining the fundamental properties (mass, log(g), effective temperature) of young substellar objects, both brown dwarfs and gas-giant exoplanets.

Keywords

(stars:) brown dwarfsinfrared:starsinfrared:planetary systems
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Issue S314: Young Stars & Planets Near the Sun , November 2015 , pp. 226 - 231
Copyright
Copyright © International Astronomical Union 2016 

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