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Exo-planet search from Dome C and space – a comparative study

Published online by Cambridge University Press:  13 November 2008

H. Zinnecker ,
N. Epchtein ,
H. Rauer ,
H. Rauer ,
T. Fruth  and
A. Erikson
H. Rauer
Affiliation:
Institut für Planetenforschung, DLR, Rutherfordstr. 2, 12489 Berlin, Germany
T. Fruth
Affiliation:
Institut für Planetenforschung, DLR, Rutherfordstr. 2, 12489 Berlin, Germany
A. Erikson
Affiliation:
Institut für Planetenforschung, DLR, Rutherfordstr. 2, 12489 Berlin, Germany
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Abstract

The search for extrasolar transiting planets requires high accuracy photometric observations over a long time basis. The method therefore favors observing sites allowing for long uninterrupted observations, or observations with space satellites. The first space mission searching for planetary transits is the French-led CoRoT mission launched in December 2006. Its longest observing sequences span 150 days, whereas Dome C can provide a ground-based site for observations over 2–3 months. Full observational coverage of at least three transit events up to about two weeks orbital period can be obtained from Dome C during one winter season when realistic conditions for cloud coverage are taken into account. The efficiency can be further optimized if Dome C is combined with other sites at low-latitudes, closing the gap of the summer break in Antarctica.


Type
Research Article
Information
European Astronomical Society Publications Series , Volume 33: 2nd ARENA Conference: The Astrophysical Science Cases at Dome C , 2008 , pp. 41 - 47
Copyright
© EAS, EDP Sciences, 2008

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