Exoplanet Predictions Based on the Generalised Titius-Bode Relation

TL;DR

This study assesses how well exoplanet systems follow a generalized Titius-Bode relation, predicting 141 new planets and suggesting the relation's potential as a predictive tool, especially for systems observed by Kepler.

Contribution

The paper demonstrates that many exoplanet systems adhere to a generalized Titius-Bode relation and uses it to predict additional planets, including in habitable zones.

Findings

Most exoplanet systems follow the TB relation more than the Solar System.

Predicted 141 new exoplanets, including in habitable zones.

Validated the TB relation as a potential predictive tool.

Abstract

We evaluate the extent to which newly detected exoplanetary systems containing at least four planets adhere to a generalized Titius-Bode (TB) relation. We find that the majority of exoplanet systems in our sample adhere to the TB relation to a greater extent than the Solar System does, particularly those detected by the Kepler mission. We use a generalized TB relation to make a list of predictions for the existence of 141 additional exoplanets in 68 multiple-exoplanet systems: 73 candidates from interpolation, 68 candidates from extrapolation. We predict the existence of a low-radius (R < 2.5 Earth Radii) exoplanet within the habitable zone of KOI-812 and that the average number of planets in the habitable zone of a star is 1-2. The usefulness of the TB relation and its validation as a tool for predicting planets will be partially tested by upcoming Kepler data releases.