publication . Article . 2014

A data-driven approach for retrieving temperatures and abundances in brown dwarf atmospheres

Line, MR; Fortney, JJ; Marley, MS; Sorahana, S;
Open Access English
  • Published: 20 Sep 2014
  • Publisher: eScholarship, University of California
  • Country: United States
Abstract
© 2014. The American Astronomical Society. All rights reserved. Brown dwarf spectra contain a wealth of information about their molecular abundances, temperature structure, and gravity. We present a new data driven retrieval approach, previously used in planetary atmosphere studies, to extract the molecular abundances and temperature structure from brown dwarf spectra. The approach makes few a priori physical assumptions about the state of the atmosphere. The feasibility of the approach is first demonstrated on a synthetic brown dwarf spectrum. Given typical spectral resolutions, wavelength coverage, and noise, property precisions of tens of percent can be obtai...
Subjects
arXiv: Astrophysics::Earth and Planetary AstrophysicsAstrophysics::Solar and Stellar Astrophysics
free text keywords: brown dwarfs, statistical [methods], radiative transfer, atmospheres [stars], individual [stars], Astronomy & Astrophysics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Physical Chemistry, Physical Chemistry (incl. Structural)
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publication . Article . 2014

A data-driven approach for retrieving temperatures and abundances in brown dwarf atmospheres

Line, MR; Fortney, JJ; Marley, MS; Sorahana, S;