SIMBAD references

2019ApJ...875...22H - Astrophys. J., 875, 22-22 (2019/April-2)

Tides between the TRAPPIST-1 planets.


Abstract (from CDS):

The TRAPPIST-1 system is sufficiently closely packed that tides raised by one planet on another are significant. We investigate whether this source of tidal heating is comparable to eccentricity tides raised by the star. Assuming a homogeneous body with a Maxwell rheology, we find that energy dissipation from stellar tides always dominates over that from planet-planet tides across a range of viscosities. TRAPPIST-1 g may experience the greatest proportion of planet-planet tidal heating, where it can account for between 2% and 20% of the total amount of tidal heating, for high-viscosity (1021 Pa s) and low-viscosity (1014 Pa s) regimes, respectively. If planet-planet tidal heating is to exceed that from stellar eccentricity tides, orbital eccentricities must be no more than e = 10–3-10–4 for most of the TRAPPIST-1 planets.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): gravitation - planets and satellites: dynamical evolution and stability - planets and satellites: individual TRAPPIST-1g - planets and satellites: interiors - planets and satellites: terrestrial planets

Simbad objects: 8

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