Eight exoplanet candidates in SAO survey

Abstract

Here we present eight new candidates for exoplanets detected by the transit method at the Special Astrophysical Observatory of the Russian Academy of Sciences. Photometric observations were performed with a 50-cm robotic telescope during the second half of 2020. We detected transits with depths of $\Delta m=0.056-0.173^m$ and periods $P=18.8^h-8.3^d$ in the light curves of stars with magnitudes of $m=14.3-18.8^m$. All considered stars are classified as dwarfs with radii of $R_{\ast }=0.4-0.6R_{sun}$ (with the uncertainty for one star up to $1.1R_{sun}$). We estimated the candidate radii (all are greater than 1.4 times the Jovian radius), semi-major axes of their orbits ($0.012-0.035AU$), and other orbital parameters by modelling. We report the light curves with transits for two stars obtained in 2022 based on individual observations.

16 pages, 14 figures, 3 tables