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

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

Boletín de la Asociación Argentina de Astronomía

Asociación Argentina de Astronomía

Año: 2020 vol. 61B p. 24 - 26

0571-3285

To date, thousands of exoplanets have been discovered.Studying them in detail to know theirparticularities and physical properties is one of the most attractive challenges of astronomy andastrophysics today. In this work, we identify a group of hot Jupiters that fulfill the necessary conditions tostudy their atmospheres. As an initial sample, we photometrically observed several transits of four of them withArgentine telescopes. In addition, we consider the data recently published by the TESS satellite. We found theorbital and planetary parameters of the systems and compared the results of our analysis of the TESS data withthe analysis provided by NASA, finding a good agreement. Finally, we combined the data obtained from theground with the space ones to refine these parameters comparing them with those published in the literature.