Transit timing analysis of the exoplanet TrES-5 b. Possible existence of the exoplanet TrES-5 c

• Published in: arXiv.org
• Main Authors: Sokov, Eugene N, Sokova, Iraida A, Dyachenko, Vladimir V, Rastegaev, Denis A, Burdanov, Artem, Rusov, Sergey A, Benni, Paul, Shadick, Stan, Veli-Pekka Hentunen, Salisbury, Mark, Esseiva, Nicolas, Garlitz, Joe, Bretton, Marc, Ogmen, Yenal, Karavaev, Yuri, Ayiomamitis, Anthony, Mazurenko, Oleg, David Molina Alonso, Velichko Sergey
• Format: Paper Journal Article
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 09.06.2018
• Subjects: Extrasolar planets; Light curve; Photometry; Physics - Earth and Planetary Astrophysics; Three body problem; Transit
• ISSN: 2331-8422
• DOI: 10.48550/arxiv.1806.03503

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 method (TTV) 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 days and a period of P ~ 99 days. We carried out the N-body modeling 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.