Dynamical Instabilities in Systems of Multiple Short-period Planets Are Likely Driven by Secular Chaos: A Case Study of Kepler-102

We investigated the dynamical stability of high-multiplicity Kepler and K2 planetary systems. Our numerical simulations find instabilities in ∼20% of the cases on a wide range of timescales (up to 5 × 109 orbits) and over an unexpectedly wide range of initial dynamical spacings. To identify the trig...

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Veröffentlicht in:	The Astronomical journal 2020-09, Vol.160 (3), p.98
Hauptverfasser:	Volk, Kathryn, Malhotra, Renu
Format:	Artikel
Sprache:	eng
Schlagworte:	ANGULAR MOMENTUM Astronomy ASTROPHYSICS, COSMOLOGY AND ASTRONOMY Bulk density Computer simulation COMPUTERIZED SIMULATION Dynamic stability Exoplanet dynamics Exoplanet systems Exoplanets INSTABILITY MASS Motion stability MULTIPLICITY Numerical simulations Orbital evolution Orbital resonances (celestial mechanics) ORBITS PERIODICITY Planetary evolution Planetary systems PLANETS RESONANCE Simulation SPECTRA Spectral analysis Spectrum analysis STABILITY
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