Identification of absorption features in an extrasolar planet atmosphere

T. Barman

doi:10.1086/518736

Identification of absorption features in an extrasolar planet atmosphere

T. Barman

Research output: Contribution to journal › Article › peer-review

115 Scopus citations

Abstract

Water absorption is identified in the atmosphere of HD 209458h by comparing models for the planet's transmitted spectrum to recent, multiwavelength, eclipse-depth measurements (from 0.3 to 1 μm) published by Knutson et al. A cloud-free model that includes solar abundances, rainout of condensates, and photoionization of sodium and potassium is in good agreement with the entire set of eclipse-depth measurements from the ultraviolet to near-infrared. Constraints are placed on condensate removal by gravitational settling, the bulk metallicity, and the redistribution of absorbed stellar flux. Comparisons are also made to the Charbonneau et al. sodium measurements.

Original language	English (US)
Pages (from-to)	L191-L194
Journal	Astrophysical Journal
Volume	661
Issue number	2 II
DOIs	https://doi.org/10.1086/518736
State	Published - Jun 1 2007
Externally published	Yes

Keywords

Planetary systems
Radiative transfer
Stars: individual (HD 209458)

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/518736

Cite this

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title = "Identification of absorption features in an extrasolar planet atmosphere",

abstract = "Water absorption is identified in the atmosphere of HD 209458h by comparing models for the planet's transmitted spectrum to recent, multiwavelength, eclipse-depth measurements (from 0.3 to 1 μm) published by Knutson et al. A cloud-free model that includes solar abundances, rainout of condensates, and photoionization of sodium and potassium is in good agreement with the entire set of eclipse-depth measurements from the ultraviolet to near-infrared. Constraints are placed on condensate removal by gravitational settling, the bulk metallicity, and the redistribution of absorbed stellar flux. Comparisons are also made to the Charbonneau et al. sodium measurements.",

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N2 - Water absorption is identified in the atmosphere of HD 209458h by comparing models for the planet's transmitted spectrum to recent, multiwavelength, eclipse-depth measurements (from 0.3 to 1 μm) published by Knutson et al. A cloud-free model that includes solar abundances, rainout of condensates, and photoionization of sodium and potassium is in good agreement with the entire set of eclipse-depth measurements from the ultraviolet to near-infrared. Constraints are placed on condensate removal by gravitational settling, the bulk metallicity, and the redistribution of absorbed stellar flux. Comparisons are also made to the Charbonneau et al. sodium measurements.

AB - Water absorption is identified in the atmosphere of HD 209458h by comparing models for the planet's transmitted spectrum to recent, multiwavelength, eclipse-depth measurements (from 0.3 to 1 μm) published by Knutson et al. A cloud-free model that includes solar abundances, rainout of condensates, and photoionization of sodium and potassium is in good agreement with the entire set of eclipse-depth measurements from the ultraviolet to near-infrared. Constraints are placed on condensate removal by gravitational settling, the bulk metallicity, and the redistribution of absorbed stellar flux. Comparisons are also made to the Charbonneau et al. sodium measurements.

KW - Planetary systems

KW - Radiative transfer

KW - Stars: individual (HD 209458)

UR - https://www.scopus.com/pages/publications/34250796132

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SP - L191-L194

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2 II

ER -

Identification of absorption features in an extrasolar planet atmosphere

Abstract

Keywords

ASJC Scopus subject areas

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