Journal article
Orbital stability of proposed NY virginis exoplanets
Monthly notices of the Royal Astronomical Society, Vol.517(1), pp.L108-L110
11/01/2022
DOI: 10.1093/mnrasl/slac118
Abstract
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 behaviour analysis. The best-fit orbits, as well as those with parameters varying by the published uncertainty range in each parameter, were unstable on a time-scale much less than the presumed lifetime of the PCEB phase (similar to 100 Myr). Suggesting that the proposed circumbinary companions fail to provide a complete explanation for the observed ETVs.
Details
- Title: Subtitle
- Orbital stability of proposed NY virginis exoplanets
- Creators
- Xinyu Mai - University of Iowa, Physics and AstronomyRobert L. Mutel - University of Iowa, Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- Monthly notices of the Royal Astronomical Society, Vol.517(1), pp.L108-L110
- Publisher
- Oxford Univ Press
- DOI
- 10.1093/mnrasl/slac118
- ISSN
- 0035-8711
- eISSN
- 1365-2966
- Number of pages
- 3
- Grant note
- 1517412 / National Science Foundation (NSF)
- Language
- English
- Date published
- 11/01/2022
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984460855502771
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