Orbital parameters refinement on hot-Jupiters with space and ground-based observations: First step towards atmospheric characterization

MICULÁN, R. G.; DÍAZ, R. F. ; TORRES, A. F. ; PARZAJUK, N.

Viedma

Congreso; 61a Reunión Anual Asociación Argentina de Astronomía; 2019

To date, thousands of exoplanets have been discovered. Studying them in detail to know their particularities and physical properties is one of the most attractive challenges of modern astronomy and astrophysics. In this work, we identify a group of hot Jupiters that fulfill the necessary conditions to study their atmospheres. As an initial sample, we photometrically observed several transits of four of them with Argentine telescopes. In addition, we consider the data recently published by the TESS satellite. We obtained the orbital and planetary parameters of the systems and compared the results of our analysis of TESS data with the analysis provided by NASA, finding a good agreement. Finally, we combined the ground and space-based data to refine these parameters, and compare them with those published in the literature.