Extrasolar Planets

ExoSGAN and ExoACGAN: Exoplanet Detection Using Adversarial Training Algorithms

By Keith Cowing
astro-ph.EP
July 20, 2022
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ExoSGAN and ExoACGAN: Exoplanet Detection Using Adversarial Training Algorithms
Illustration of Architecture of ExoACGAN

Exoplanet detection opens the door to the discovery of new habitable worlds and helps us understand how planets were formed.

With the objective of finding earth-like habitable planets, NASA launched Kepler space telescope and its follow up mission K2.

The advancement of observation capabilities has increased the range of fresh data available for research, and manually handling them is both time-consuming and difficult. Machine learning and deep learning techniques can greatly assist in lowering human efforts to process the vast array of data produced by the modern instruments of these exoplanet programs in an economical and unbiased manner. However, care should be taken to detect all the exoplanets precisely while simultaneously minimizing the misclassification of non-exoplanet stars.

In this paper, we utilize two variations of generative adversarial networks, namely semi-supervised generative adversarial networks and auxiliary classifier generative adversarial networks, to detect transiting exoplanets in K2 data. We find that the usage of these models can be helpful for the classification of stars with exoplanets. Both of our techniques are able to categorize the light curves with a recall and precision of 1.00 on the test data. Our semi-supervised technique is beneficial to solve the cumbersome task of creating a labeled dataset.

Cicy K Agnes, Akthar Naveed V, Anitha Mary M O Chacko

Comments: 26 pages total
Subjects: Earth and Planetary Astrophysics (astro-ph.EP); Instrumentation and Methods for Astrophysics (astro-ph.IM); Artificial Intelligence (cs.AI); Machine Learning (cs.LG)
Cite as: arXiv:2207.09665 [astro-ph.EP] (or arXiv:2207.09665v1 [astro-ph.EP] for this version)
https://doi.org/10.48550/arXiv.2207.09665
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Submission history
From: Cicy K Agnes
[v1] Wed, 20 Jul 2022 05:45:36 UTC (619 KB)
https://arxiv.org/abs/2207.09665
Astrobiology, Astrochemistry,

SpaceRef co-founder, Explorers Club Fellow, ex-NASA, Away Teams, Journalist, Space & Astrobiology, Lapsed climber.