Identification of absorption features in an extrasolar planet atmosphere

Research output: Contribution to journalArticle

93 Citations (Scopus)

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 languageEnglish (US)
JournalAstrophysical Journal
Volume661
Issue number2 II
DOIs
StatePublished - Jun 1 2007
Externally publishedYes

Fingerprint

depth measurement
eclipses
extrasolar planets
condensate
condensates
planet
sodium
atmospheres
atmosphere
settling
metallicity
photoionization
planets
potassium
near infrared
water
rainout
comparison
removal

Keywords

  • Planetary systems
  • Radiative transfer
  • Stars: individual (HD 209458)

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Identification of absorption features in an extrasolar planet atmosphere. / Barman, Travis S.

In: Astrophysical Journal, Vol. 661, No. 2 II, 01.06.2007.

Research output: Contribution to journalArticle

@article{9617f7d33c0c4c5a8f3dfe08acc05919,
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.",
keywords = "Planetary systems, Radiative transfer, Stars: individual (HD 209458)",
author = "Barman, {Travis S}",
year = "2007",
month = "6",
day = "1",
doi = "10.1086/518736",
language = "English (US)",
volume = "661",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "2 II",

}

TY - JOUR

T1 - Identification of absorption features in an extrasolar planet atmosphere

AU - Barman, Travis S

PY - 2007/6/1

Y1 - 2007/6/1

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 - http://www.scopus.com/inward/record.url?scp=34250796132&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34250796132&partnerID=8YFLogxK

U2 - 10.1086/518736

DO - 10.1086/518736

M3 - Article

AN - SCOPUS:34250796132

VL - 661

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 2 II

ER -