Talk 10 - Edita Stonkute - High-res spectroscopic follow-up of known and possible exoplanet-hosts

High-resolution spectroscopic follow-up of known and possible exoplanet-hosts using the Europlanet Telescope Network facility Abstract Exoplanets – planets outside the Solar system are common in our Galaxy, however questions how they form remain. Following recent studies of different aspects of the planetary formation process, we come to the same conclusion that the better we know the host star, the more precise characterization can be made of planets orbiting it. For example, the effective temperatures of stars are closely connected to the stellar radii, whereas the planetary building blocks are very much the same ones that make up the host stars. As the number of discovered and confirmed planets increases, we find that a lot of those stars do not have accurate spectroscopic parameters or elemental abundances determinations. We are using the EPN-TN facility – VUES spectrograph at Moletai Astronomical Observatory, Lithuania with a 1.65-m telescope to determine the precise atmospheric parameters and extended chemical composition of a number of planet hosting stars. Together with available archival data we aim to homogenously determine the precise atmospheric parameters and extended chemical composition (including Li, C/O and Mg/Si ratios, and a wide range of other chemical elements) of stars providing constrains and data for the planet formation models, particularly in respect to the star-planet connection. In this talk I will review the current state of the exoplanet-hosts studies and perspectives using the EPN-TN facilities. ---------------------------- Europlanet workshop 2022 February 9 - 11, 2022 EUROPLANET TELESCOPE NETWORK SCIENCE WORKSHOP Virtual Europlanet 2024 Research Infrastructure project and the Institute of Theoretical Physics and Astronomy of Vilnius University are pleased to announce the international conference „Europlanet Telescope Network Science Workshop“. The Europlanet Telescope Network (EPN-TN), launched in 2020, is a network of small telescope facilities to support planetary science observations by professional and amateur astronomers. The EPN-TN currently comprises 16 observatories with 46 telescopes ranging from 40 cm to 2 m in size. The network can be accessed free of charge to carry out projects on a wide variety of scientific studies about the Solar System and exoplanets, as well as related astronomical investigations. The goal of this workshop is to encourage community-led proposals and to highlight scientific results achieved with EPN-TN and other medium size and small telescopes. We invite interested astronomers and amateurs to participate, to learn more about the instruments offered, their capabilities, and scientific potential. The EPN-TN is operated by the EUROPLANET 2024 Research Infrastructure project which is funded by the European Union's Horizon 2020 research and innovation programme under grant agreement No 871149. Sessions will be distributed over three half days. They will be dedicated accordingly: Day 1 - Solar System planets Day 2 - Exoplanets Day 3 - Minor Solar System Bodies