Volume 527, March 2011
|Number of page(s)||10|
|Section||Planets and planetary systems|
|Published online||31 January 2011|
TASTE: The Asiago Search for Transit timing variations of Exoplanets⋆
I. Overview and improved parameters for HAT-P-3b and HAT-P-14b
Dipartimento di AstronomiaUniversità degli Studi di Padova,
Vicolo dell’Osservatorio 3,
e-mail: firstname.lastname@example.org; email@example.com, firstname.lastname@example.org
2 Space Telescope Science Institute, 3700 San Martin Drive, MD 21218, Baltimore, USA
3 Astronomical Observatory of the Autonomous Region of the Aosta Valley, Loc. Lignan 39, 11020 Nus (AO), Italy
Received: 11 June 2010
Accepted: 24 November 2010
A promising method for detecting earth-sized exoplanets is the timing analysis of a known transit. The technique allows a search for variations in either the transit duration or the center induced by the perturbation of a third body, e.g. a second planet or an exomoon. By applying this method, the TASTE (The Asiago search for transit timing variations of Exoplanets) project will collect high-precision, short-cadence light curves for a selected sample of transits by using imaging differential photometry at the Asiago 1.82 m telescope. The first light curves show that our project can achieve a competitive timing accuracy, as well as a significant improvement of the orbital parameters. We derived refined ephemerides for HAT-P-3b and HAT-P-14b with a timing accuracy of 11 and 25 s, respectively.
Key words: techniques: photometric / planetary systems / stars: individual: HAT-P-14 / stars: individual: HAT-P-3
Photometric data is only a vailable in electronic form at CDS via anonymous ftp to cdsarc.u-strasbg.fr (220.127.116.11) or via http://cdsweb.u-strasbg.fr/viz-bin/qcat?J/A+A/527/A85
© ESO, 2011
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