Sada, P. V.; Ricci, D.; Navarro-Meza, S.; López-Valdivia, R.; Michel, R.; Fox Machado, L.; Ramón-Fox, F. G.; Ayala-Loera, C.; Brown Sevilla, S.; Reyes-Ruiz, M.; La Camera, A.; Righi, C.; Cabona, L.; Tosi, S.; Truant, N.; Peterson, S. W.; Prieto-Arranz, J.; Velasco, S.; Pallé, E.; Deeg, H. J.
Bibliographical reference
Publications of the Astronomical Society of Pacific, Volume 129, Issue 976, pp. 064401 (2017).
Description
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 = 36–152 cm) 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 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 {R}p/{R}*
={0.1112}-0.0026+0.0025 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.
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