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Phase-differential NIR integral field spectroscopy of transiting Hot Jupiters

Published online by Cambridge University Press:  01 May 2008

Daniel Angerhausen ,
Alfred Krabbe  and
Christof Iserlohe
Daniel Angerhausen
Affiliation:
Physikalisches Institut, Universität zu Köln, Zülpicher Strasse 77, 50937 Köln, Germany email: [email protected]
Alfred Krabbe
Affiliation:
Physikalisches Institut, Universität zu Köln, Zülpicher Strasse 77, 50937 Köln, Germany email: [email protected]
Christof Iserlohe
Affiliation:
Physikalisches Institut, Universität zu Köln, Zülpicher Strasse 77, 50937 Köln, Germany email: [email protected]
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Abstract

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Transiting exoplanets provide a unique opportunity for follow up exploration through phase-differential observation of their emission and transmission spectra. From such spectra immediate clues about the atmospheric composition and the planets chemistry can be drawn. Such information is of imminent importance for the theory of the formation of planets in general as well as for their particular evolution. Ground-based spectroscopy of exoplanet transits is a needful extension of results already obtained through space-based observations. We present results of an exploratory study to use near-infrared integral field spectroscopy to observe extrasolar planets. We demonstrate how adaptive optics-assisted integral field spectroscopy compares with other spectroscopic techniques currently applied. An advanced reduction method using elements of a spectral-differential decorrelation method is also discussed. We have tested our concept with a K-Band time series observations of HD209458b and HD189733b obtained with SINFONI at the VLT and OSIRIS at Keck during secondary transits at a spectral resolution of R=3000.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S253: Transiting Planets , May 2008 , pp. 552 - 555
Copyright
Copyright © International Astronomical Union 2009

References

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