Eight exoplanet candidates in SAO survey

• Main Authors: Yakovlev, O. Ya, Valeev, A. F, Valyavin, G. G, Tavrov, A. V, Aitov, V. N, Mitiani, G. Sh, Beskin, G. M, Vlasyuk, V. V, Korablev, O. I, Galazutdinov, G. A, Emelianov, E. V, Fatkhullin, T. A, Sasyuk, V. V, Perkov, A. V, Bondar, S. F, Burlakova, T. E, Fabrika, S. N, Romanyuk, I. I
• Format: Journal Article
• Language: English
• Published: 03-04-2023
• Subjects: Physics - Earth and Planetary Astrophysics
• DOI: 10.48550/arxiv.2304.01076

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 $R_* = 0.4-0.6 R_{sun}$ (with the
uncertainty for one star up to $1.1 R_{sun}$). We estimated the candidate radii
(all are greater than 1.4 times the Jovian radius), semi-major axes of their
orbits ($0.012-0.035 AU$), and other orbital parameters by modelling. We report
the light curves with transits for two stars obtained in 2022 based on
individual observations.