A possible bifurcation in atmospheres of strongly irradiated stars and planets

Ivan - Hubeny, Adam Burrows, David Sudarsky

Research output: Contribution to journalArticle

224 Citations (Scopus)

Abstract

We show that under certain circumstances the differences between the absorption mean and Planck mean opacities can lead to multiple solutions for an LTE atmospheric structure. Since the absorption and Planck mean opacities are not expected to differ significantly in the usual case of radiative equilibrium, nonirradiated atmospheres, the most interesting situations in which the effect may play a role are strongly irradiated stars and planets, and also possibly structures in which there is a significant deposition of mechanical energy, such as stellar chromospheres and accretion disks. We have presented an illustrative example of a strongly irradiated giant planet in which the bifurcation effect is predicted to occur for a certain range of distances from the star.

Original languageEnglish (US)
Pages (from-to)1011-1018
Number of pages8
JournalAstrophysical Journal
Volume594
Issue number2 I
DOIs
StatePublished - Sep 10 2003

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bifurcation
planets
planet
opacity
atmospheric structure
atmospheres
stars
atmosphere
chromosphere
local thermodynamic equilibrium
accretion
accretion disks
energy
effect

Keywords

  • Binaries: general
  • Planetary systems
  • Planets and satellites: general radiative transfer
  • Stars: atmospheres
  • Stars: low-mass, brown dwarfs

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

A possible bifurcation in atmospheres of strongly irradiated stars and planets. / Hubeny, Ivan -; Burrows, Adam; Sudarsky, David.

In: Astrophysical Journal, Vol. 594, No. 2 I, 10.09.2003, p. 1011-1018.

Research output: Contribution to journalArticle

Hubeny, Ivan - ; Burrows, Adam ; Sudarsky, David. / A possible bifurcation in atmospheres of strongly irradiated stars and planets. In: Astrophysical Journal. 2003 ; Vol. 594, No. 2 I. pp. 1011-1018.
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