Defocused Observations of Selected Exoplanet Transits with T100 in TUBITAK National Observatory of Turkey (TUG)

TL;DR

This paper presents preliminary transit light curve analyses of several exoplanets observed with the defocus technique using the T100 telescope at TUBITAK National Observatory, aiming to improve planetary parameter measurements.

Contribution

It demonstrates the application of the defocus observational technique with the T100 telescope for exoplanet transit studies, providing initial data on multiple exoplanets.

Findings

Preliminary transit light curves obtained for five exoplanets.

Application of defocus technique to improve photometric precision.

Initial results suggest potential for refined planetary parameters.

Abstract

It is crucial to determine masses and radii of extrasolar planets with high precision to have constraints on their chemical composition, internal structure and thereby their formation and evolution. In order to achieve this goal, we apply the defocus technique in the observations of selected planetary systems with the 1 m Turkish telescope T100 in TUBITAK National Observatory (TUG). With this contribution, we aim to present preliminary analyses of transit light curves of the selected exoplanets KELT-3b, HAT-P-10b/WASP-11b, HAT-P-20b, and HAT-P-22b, observed with this technique using T100.