Solution of newly observed transit of the exoplanet HAT-P-24b: no TTV and TDV signals

TL;DR

This study presents new photometric transit observations of exoplanet HAT-P-24b, refining its parameters and finding no evidence of transit timing or duration variations, contributing to understanding its orbital stability.

Contribution

The paper provides updated physical and orbital parameters for HAT-P-24b based on new observations and confirms the absence of TTV and TDV signals, which was not previously established.

Findings

Refined planetary radius and density measurements.

No detectable TTV or TDV signals.

Parameter values consistent with previous studies.

Abstract

We present photometric observations of transit of the exoplanet HAT-P-24b using the Rozhen 2 m telescope. Its solution gives relative stellar radius r_{s}=0.1304 (a/R_{s}=7.669), relative planet radius r_{p}=0.01304 and orbital inclination of 90 degree. The calculated planet radius is R_{p}=1.316 R_{J} and corresponds to planet density of rho_{p}=0.37 g cm^{-3}. Our parameter values are between those of the previous two solutions. We did not find evidences of TTV and TDV signals of HAT-P-24b.