Probing Transit Timing Variations of Three Hot-Jupiters: HATP-36b, HATP-56b, and WASP-52b

• Main Authors: Sonbas, E, Karaman, N, Özdönmez, A, Er, H, Dhuga, K. S, Göğüş, E, Nasiroglu, I, Zejmo, M
• Format: Journal Article
• Language: English
• Published: 09-11-2021
• Subjects: Physics - Earth and Planetary Astrophysics
• DOI: 10.48550/arxiv.2111.05220

We report the results of new transit observations for the three hot
Jupiter-like planets HATP-36b, HATP-56b and WASP-52b respectively. Transit
timing variations (TTVs) are presented for these systems based on observations
that span the period 2016 - 2020. The data were collected with the 0.6 m
telescope at Adiyaman University (ADYU60, Turkey) and the 1.0 m telescope at
T\"UB\.ITAK National Observatory (TUG, Turkey). Global fits were performed to
the combined light curves for each system along with the corresponding radial
velocity (RV) data taken from the literature. The extracted parameters (for all
three systems) are found to be consistent with the values from previous
studies. Through fits to the combined mid-transit times data from our
observations and the data available in the literature, an updated linear
ephemeris is obtained for each system. Although a number of potential outliers
are noted in the respective O-C diagrams, the majority of the data are
consistent within the 3$\sigma$ confidence level implying a lack of convincing
evidence for the existence of additional objects in the systems studied.