Orbital stability of proposed NY virginis exoplanets

Autor:	Xinyu Mai, Robert L Mutel
Rok vydání:	2022
Předmět:	Earth and Planetary Astrophysics (astro-ph.EP) Astrophysics - Solar and Stellar Astrophysics Space and Planetary Science FOS: Physical sciences Astronomy and Astrophysics Solar and Stellar Astrophysics (astro-ph.SR) Astrophysics - Earth and Planetary Astrophysics
Zdroj:	Monthly Notices of the Royal Astronomical Society: Letters. 517:L108-L110
ISSN:	1745-3933 1745-3925
Popis:	Er et al. (2021) recently proposed a two-planet solution to account for eclipse timing variations (ETVs) observed from the sdB binary NY Virginis. We tested the proposed planetary system for orbit stability using both numerical simulations and chaotic behavior analysis. The best-fit orbits, as well as those with parameters varying by the published uncertainty range in each parameter, were unstable on a timescale much less than the presumed lifetime of the PCEB phase ($\sim$100 Myr). suggesting that the proposed circumbinary companions fail to provide a complete explanation for the observed ETVs. 4 pages, 3 figures
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8040f0fcdb043455df79b566f96db539 https://doi.org/10.1093/mnrasl/slac118 Zobrazit plný text záznamu