Atmospheric composition and structure of HD209458b

J. M. Désert; A. Vidal-Madjar; A. Lecavelier Des Etangs; D. Sing; D. Ehrenreich; G. Hébrard; R. Ferlet

doi:10.1017/S1743921308027117

Atmospheric composition and structure of HD209458b

J. M. Désert
, A. Vidal-Madjar
, A. Lecavelier Des Etangs
, D. Sing
, D. Ehrenreich
, G. Hébrard
, R. Ferlet

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

Abstract

Transiting planets like HD209458b offer a unique opportunity to scrutinize their atmospheric composition and structure. Transit spectroscopy probes the transition region between the day and night sides, called the limb. We present a re-analysis of existing HST/STIS transmission spectra of HD209458b's atmosphere. From these observations we identify H2 Rayleigh scattering, derive the absolute Sodium abundance and quantify its depletion in the upper atmosphere, extract a stratospheric T-P profile and find a temperature inversion and explain broad band absorptions with the presence of TiO and VO molecules.

Original language	English
Pages (from-to)	524-527
Number of pages	4
Journal	Proceedings of the International Astronomical Union
Volume	4
Issue number	S253
DOIs	https://doi.org/10.1017/S1743921308027117
Publication status	Published - 1 May 2008
Externally published	Yes

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abstract = "Transiting planets like HD209458b offer a unique opportunity to scrutinize their atmospheric composition and structure. Transit spectroscopy probes the transition region between the day and night sides, called the limb. We present a re-analysis of existing HST/STIS transmission spectra of HD209458b's atmosphere. From these observations we identify H2 Rayleigh scattering, derive the absolute Sodium abundance and quantify its depletion in the upper atmosphere, extract a stratospheric T-P profile and find a temperature inversion and explain broad band absorptions with the presence of TiO and VO molecules.",

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T1 - Atmospheric composition and structure of HD209458b

AU - Désert, J. M.

AU - Vidal-Madjar, A.

AU - Lecavelier Des Etangs, A.

AU - Sing, D.

AU - Ehrenreich, D.

AU - Hébrard, G.

AU - Ferlet, R.

PY - 2008/5/1

Y1 - 2008/5/1

N2 - Transiting planets like HD209458b offer a unique opportunity to scrutinize their atmospheric composition and structure. Transit spectroscopy probes the transition region between the day and night sides, called the limb. We present a re-analysis of existing HST/STIS transmission spectra of HD209458b's atmosphere. From these observations we identify H2 Rayleigh scattering, derive the absolute Sodium abundance and quantify its depletion in the upper atmosphere, extract a stratospheric T-P profile and find a temperature inversion and explain broad band absorptions with the presence of TiO and VO molecules.

AB - Transiting planets like HD209458b offer a unique opportunity to scrutinize their atmospheric composition and structure. Transit spectroscopy probes the transition region between the day and night sides, called the limb. We present a re-analysis of existing HST/STIS transmission spectra of HD209458b's atmosphere. From these observations we identify H2 Rayleigh scattering, derive the absolute Sodium abundance and quantify its depletion in the upper atmosphere, extract a stratospheric T-P profile and find a temperature inversion and explain broad band absorptions with the presence of TiO and VO molecules.

U2 - 10.1017/S1743921308027117

DO - 10.1017/S1743921308027117

M3 - Article

AN - SCOPUS:84884949539

SN - 1743-9213

VL - 4

SP - 524

EP - 527

JO - Proceedings of the International Astronomical Union

JF - Proceedings of the International Astronomical Union

IS - S253

ER -

Atmospheric composition and structure of HD209458b

Abstract

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