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

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 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.

arXiv comment21 pages, 5 figures

References in corpus (22)

• Astrophysics Source Code Library
• On detecting terrestrial planets with timing of giant planet transits
• DHP Framework: Digital Health Passports Using Blockchain -- Use case on international tourism during the COVID-19 pandemic
• EXOFAST: A fast exoplanetary fitting suite in IDL
• Defining and cataloging exoplanets: The exoplanet.eu database
• Eccentricity from transit photometry: small planets in Kepler multi-planet systems have low eccentricities
• Orbital perturbations on transiting planets: A possible method to measure stellar quadrupoles and to detect Earth-mass planets
• The Exoplanet Orbit Database II: Updates to exoplanets.org
• The TRAPPIST survey of southern transiting planets. I. Thirty eclipses of the ultra-short period planet WASP-43 b
• Very Low-Density Planets around Kepler-51 Revealed with Transit Timing Variations and an Anomaly Similar to a Planet-Planet Eclipse Event
• Analytic Approximations for Transit Light Curve Observables, Uncertainties, and Covariances
• The Detection and Characterization of a Nontransiting Planet by Transit Timing Variations
• Exoplanet Transit Database. Reduction and processing of the photometric data of exoplanet transits
• The Kepler-19 System: A Transiting 2.2 R_Earth Planet and a Second Planet Detected via Transit Timing Variations
• Large eccentricity, low mutual inclination: the three-dimensional architecture of a hierarchical system of giant planets
• The Kepler-19 system: a thick-envelope super-Earth with two Neptune-mass companions characterized using Radial Velocities and Transit Timing Variations
• The ACS Survey of Galactic Globular Clusters XI: The Three-Dimensional Orientation of the Sagittarius Dwarf Spheroidal Galaxy and its Globular Clusters
• TrES-5: A Massive Jupiter-sized Planet Transiting A Cool G-dwarf
• Five New Transit Epochs of the Exoplanet OGLE-TR-111b
• Keplerian Orbits and Dynamics of Exoplanets
• High-precision multi-band time-series photometry of exoplanets Qatar-1b and TrES-5b
• Gifts from Exoplanetary Transits

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