Multi-filter transit observations of HAT-P-3b and TrES-3b with multiple Northern Hemisphere telescopes
Autor: | Raul Michel, Enric Palle, S. Brown Sevilla, Sergio Velasco, Chiara Righi, Hans J. Deeg, A. La Camera, Mauricio Reyes-Ruiz, Lorenzo Cabona, Jorge Prieto-Arranz, Davide Ricci, S. Navarro-Meza, Ricardo Lopez-Valdivia, Silvano Tosi, N. Truant, Steven W. Peterson, L. Fox Machado, C. Ayala-Loera, Pedro V. Sada, F. G. Ramón-Fox |
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Přispěvatelé: | ITA, ESP, MEX |
Jazyk: | angličtina |
Rok vydání: | 2017 |
Předmět: |
Physics
Earth and Planetary Astrophysics (astro-ph.EP) Northern Hemisphere FOS: Physical sciences Astronomy and Astrophysics Planets and satellites: fundamental parameters - (stars:) planetary systems Space and Planetary Science 01 natural sciences 010309 optics Filter (video) 0103 physical sciences Transit (astronomy) 010303 astronomy & astrophysics Astrophysics - Earth and Planetary Astrophysics Remote sensing |
Popis: | We present a photometric follow-up of transiting exoplanets HAT-P-3b and TrES-3b, observed by using several optical and near-infrared filters, with four small-class telescopes (D = 36--152cm) in the Northern Hemisphere. Two of the facilities present their first scientific results. New 10 HAT-P-3b light curves and new 26 TrES-3b light curves are reduced and combined by filter in order to improve the quality of the photometry. Combined light curves fitting is carried out independently by using two different analysis packages, allowing the corroboration of the orbital and physical parameters in the literature. Results find no differences in the relative radius with the observing filter. In particular, we report for HAT-P-3b a first estimation of the planet-to-star radius Rp/R* = 0.1112+0.0025-0.0026 in the B band which is coherent with values found in the VRIz'JH filters. Concerning TrES-3b, we derive a value for the orbital period of P = 1.3061862+-0.0000001 days which shows no linear variations over nine years of photometric observations. Comment: Accepted for publication in PASP; 9 pages, 6 figures, data will be published on CDS |
Databáze: | OpenAIRE |
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