TOI-2046b, TOI-1181b and TOI-1516b, three new hot Jupiters from textitTESS: planets orbiting a young star, a subgiant and a normal star

Kavli Affiliate: Gabor Furesz
| Summary:
We present the confirmation and characterization of three hot Jupiters, TOI-1181b, TOI-1516b, and TOI-2046b, discovered by the TESS space mission. The reported hot Jupiters have orbital periods between 1.4 and 2.05 days. The masses of the three planets are $1.18pm0.14$ M$_mathrmJ$, $3.16pm0.12$, M$_mathrmJ$, and 2.30 $pm 0.28$ M$_mathrmJ$, for TOI-1181b, TOI-1516b, and TOI-2046b, respectively. The stellar host of TOI-1181b is a F9IV star, whereas TOI-1516b and TOI-2046b orbit F main sequence host stars. The ages of the first two systems are in the range of 2-5 Gyrs. However, TOI-2046 is among the few youngest known planetary systems hosting a hot Jupiter, with an age estimate of 100-400 Myrs. The main instruments used for the radial velocity follow-up of these three planets are located at Ondřejov, Tautenburg and McDonald Observatory, and all three are mounted on 2-3 meter aperture telescopes, demonstrating that mid-aperture telescope networks can play a substantial role in the follow-up of gas giants discovered by textitTESS and in the future by textitPLATO.
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