Papers › Discovering Long-period Exoplanets using Deep Learning with Citizen Science Labels

Discovering Long-period Exoplanets using Deep Learning with Citizen Science Labels

13 Nov 2022arXiv:2211.06903archive 2025-07-28

Shreshth A. Malik, Nora L. Eisner, Chris J. Lintott, Yarin Gal

Automated planetary transit detection has become vital to prioritize candidates for expert analysis given the scale of modern telescopic surveys. While current methods for short-period exoplanet detection work effectively due to periodicity in the light curves, there lacks a robust approach for detecting single-transit events. However, volunteer-labelled transits recently collected by the Planet Hunters TESS (PHT) project now provide an unprecedented opportunity to investigate a data-driven approach to long-period exoplanet detection. In this work, we train a 1-D convolutional neural network to classify planetary transits using PHT volunteer scores as training data. We find using volunteer scores significantly improves performance over synthetic data, and enables the recovery of known planets at a precision and rate matching that of the volunteers. Importantly, the model also recovers transits found by volunteers but missed by current automated methods.

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