Journal Article

An ingress and a complete transit of HD 80606 b

M. G. Hidas, Y. Tsapras, D. Mislis, A. N. Ramaprakash, S. C. C. Barros, R. A. Street, J. H. M. M. Schmitt, I. Steele, D. Pollacco, A. Ayiomamitis, J. Antoniadis, A. Nitsos, J. H. Seiradakis and S. Urakawa

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 406, issue 2, pages 1146-1151
Published in print August 2010 | ISSN: 0035-8711
Published online July 2010 | e-ISSN: 1365-2966 | DOI:
An ingress and a complete transit of HD 80606 b

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We have used four telescopes at different longitudes to obtain near-continuous light-curve coverage of the star HD 80606 as it was transited by its ∼4-MJup planet. The observations were performed during the predicted transit windows around 2008 October 25 and 2009 February 14. Our data set is unique in that it simultaneously constrains the duration of the transit and the planet's period. Our Markov Chain Monte Carlo analysis of the light curves, combined with constraints from radial-velocity data, yields system parameters consistent with previously reported values. We find a planet-to-star radius ratio marginally smaller than previously reported, corresponding to a planet radius of Rp= 0.921 ± 0.036RJup.

Keywords: stars: individual: HD 80606; planetary systems

Journal Article.  3406 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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