ExoClock project. III. 450 new exoplanet ephemerides from ground and space observations

0570829 - FZÚ 2024 RIV GB eng J - Článek v odborném periodiku
Kokori, A. - Tsiaras, A. - Edwards, B. - Mašek, Martin - Pintr, Pavel … celkem 217 autorů
ExoClock project. III. 450 new exoplanet ephemerides from ground and space observations.
Astrophysical Journal Supplement Series. Roč. 265, č. 1 (2023), č. článku 4. ISSN 0067-0049. E-ISSN 1538-4365
Grant CEP: GA MŠMT LTT17006
Institucionální podpora: RVO:68378271 ; RVO:61389021
Klíčová slova: exoplanet * transiting exoplanets * ExoClock
Obor OECD: Astronomy (including astrophysics,space science); Astronomy (including astrophysics,space science) (UFP-V)
Impakt faktor: 8.7, rok: 2022
Způsob publikování: Open access

The ExoClock project has been created to increase the efficiency of the Ariel mission. It will achieve this by continuously monitoring and updating the ephemerides of Ariel candidates, in order to produce a consistent catalog of reliable and precise ephemerides. This work presents a homogenous catalog of updated ephemerides for 450 planets, generated by the integration of ∼18,000 data points from multiple sources. These sources include observations from ground-based telescopes (the ExoClock network and the Exoplanet Transit Database), midtime values from the literature, and light curves from space telescopes (Kepler, K2, and TESS). With all the above, we manage to collect observations for half of the postdiscovery years (median), with data that have a median uncertainty less than 1 minute.
Trvalý link: https://hdl.handle.net/11104/0342167