J 2019

Transit timing variations, radial velocities, and long-term dynamical stability of the system Kepler-410

GAJDOŠ, Pavol, Martin VAŇKO, Theodor PRIBULLA, Daniel DUPKALA, Ján ŠUBJAK et. al.

Základní údaje

Originální název

Transit timing variations, radial velocities, and long-term dynamical stability of the system Kepler-410

Autoři

GAJDOŠ, Pavol (garant), Martin VAŇKO, Theodor PRIBULLA, Daniel DUPKALA, Ján ŠUBJAK, Marek SKARKA (203 Česká republika, domácí), Petr KABÁTH (203 Česká republika), Lubomír HAMBÁLEK a Štefan PARIMUCHA

Vydání

Monthly Notices of the Royal Astronomical Society, Oxford, OXFORD UNIV PRESS, 2019, 0035-8711

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 5.357

Kód RIV

RIV/00216224:14310/19:00109367

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000462410300109

Klíčová slova anglicky

planetary systems; planets and satellites: dynamical evolution andstability; techniques: radial velocities; methods: numerical; stars: individual: Kepler-410

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 23. 1. 2020 15:29, Mgr. Marie Šípková, DiS.

Anotace

V originále

Transit timing variations of Kepler-410Ab were already reported in a few papers.Their semi-amplitude is about 14.5 minutes. In our previous paper, we found thatthe transit timing variations could be caused by the presence of a stellar companionin this system. Our main motivation for this paper was to investigate variation in aradial-velocity curve generated by this additional star in the system. We performedspectroscopic observation of Kepler-410 using three telescopes in Slovakia and CzechRepublic. Using the cross-correlation function, we measured the radial velocities of thestar Kepler-410A. We did not observe any periodic variation in a radial-velocity curve.Therefore, we rejected our previous hypothesis about additional stellar companionin the Kepler-410 system. We ran different numerical simulations to study mean-motion resonances with Kepler-410Ab. Observed transit timing variations could bealso explained by the presence of a small planet near to mean-motion resonance 2:3with Kepler-410Ab. This resonance is stable on a long-time scale. We also looked forstable regions in the Kepler-410 system where another planet could exist for a longtime.

Návaznosti

EF16_027/0008360, projekt VaV
Název: Postdoc@MUNI