2018•Monthly Notices of the Royal Astronomical SocietyOpen access
Transit timing analysis of the exoplanet TrES-5 b. Possible existence of the exoplanet TrES-5 c
E. Sokov, I. Sokova, V. V. Dyachenko, Д. А. Растегаев, Artem Burdanov, Sergey A Rusov, Paul Benni, Stan Shadick, V. P. Hentunen, Mark Salisbury, N. Esseiva, J. Garlitz, M. Bretton, Yenal Ogmen, Yuri Karavaev, Anthony Ayiomamitis, Oleg Mazurenko, David Alonso, Sergey Velichko
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Abstract
In this work, we present transit timing variations detected for the exoplanet TrES-5b. To obtain the necessary amount of photometric data for this exoplanet, we have organized an international campaign to search for exoplanets based on the transit-timing variation (TTV) method and as a result of this we collected 30 new light curves, 15 light curves from the Exoplanet Transit Database (ETD) and 8 light curves from the literature for the timing analysis of the exoplanet TrES-5b. We have detected timing variations with a semi-amplitude of A≈ 0.0016 d and a period of P≈ 99 d. We carried out the N-body modelling based on the three-body problem. The detected perturbation of TrES-5b may be caused by a second exoplanet in the TrES-5 system. We have calculated the possible mass and resonance of the object: M ≈ 0.24MJup at a 1:2 Resonance.
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