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Venus transit 2004: Illustrating the capability of exoplanet transmission spectroscopy

Hedelt, P and Alonso, R and Brown, P. and Collados, Manuel and Rauer, H. and Schleicher, Helmold and Schmidt, W. and Schreier, Franz and Titz-Weider, R (2011) Venus transit 2004: Illustrating the capability of exoplanet transmission spectroscopy. Astronomy and Astrophysics, 533 (A136), pp. 1-8. EDP Sciences . DOI: 10.1051/00046361201016237 . ISSN 0004-6361.

Full text not available from this repository.

Official URL: http://www.aanda.org/index.php?option=com_article&access=doi&doi=10.1051/0004-6361/201016237&Itemid=129

Abstract

The transit of Venus in 2004 offered the rare possibility to remotely sense a well-known planetary atmosphere using ground-based absorption spectroscopy. Transmission spectra of Venus’ atmosphere were obtained in the near infrared using the Vacuum Tower Telescope (VTT) in Tenerife. Since the instrument was designed to measure the very bright photosphere of the Sun, extracting Venus’ atmosphere was challenging. We were able to identify CO2 absorption lines in the upper Venus atmosphere. Moreover, the relative abundance of the three most abundant CO2 isotopologues could be determined. The observations resolved Venus’ limb, showing Doppler-shifted absorption lines that are probably caused by high-altitude winds. We demonstrate the utility of groundbased measurements in analyzing the atmospheric constituents of a terrestrial planet atmosphere using methods that might be applied in future to terrestrial extrasolar planets.

Document Type:Article
Title:Venus transit 2004: Illustrating the capability of exoplanet transmission spectroscopy
Authors:
AuthorsInstitution or Email of Authors
Hedelt, PUniversity of Bordeaux, Bordeaux, France
Alonso, RLAM, Marseille
Brown, P.Department of Physics and Astronomy, University of Western Ontario, London, ON N6A 3K7, Canada
Collados, ManuelInstituto de Astrofísica de Canarias
Rauer, H.heike.rauer@dlr.de
Schleicher, HelmoldKiepenheuer Institut für Sonnenforschung
Schmidt, W.UNSPECIFIED
Schreier, Franzfranz.schreier@dlr.de
Titz-Weider, Rruth.titz@dlr.de
Date:September 2011
Journal or Publication Title:Astronomy and Astrophysics
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:533
DOI:10.1051/00046361201016237
Page Range:pp. 1-8
Editors:
EditorsEmail
UNSPECIFIEDaanda.org
Publisher:EDP Sciences
Series Name:Planets and planetary systems
ISSN:0004-6361
Status:Published
Keywords:planets and satellites: atmospheres / planets and satellites: composition / planets and satellites: detection / radiative transfer / techniques: spectroscopic
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben Exploration des Sonnensystems (old)
Location: Berlin-Adlershof
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Institute of Planetary Research > Extrasolar Planets and Atmospheres
Deposited By: Ulrike Stiebeler
Deposited On:27 Jan 2012 14:53
Last Modified:08 May 2013 08:31

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