ALDERAAN: Automated Lightcurve Detrending, Exoplanet Recovery, and Analysis of Autocorrelated Noise (v0.1.0)

Initial release of ALDERAAN pipeline (v0.1.0)

This is the version of the code used for G.J. Gilbert, E.A. Petigura, & P.M. Entrican, "Planets larger than Neptune have elevated eccentricities," PNAS 122 (11) e2405295122, https://doi.org/10.1073/pnas.2405295122 (2025).

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The pipeline is currently capable of processing photometric lightcurve data from the Kepler Space Telescope, but in the future will be extended to handle data from K2 and TESS.

Detrending and transit fitting are optimized to detect low-amplitude transit timing variations (TTVs). Autocorrelated noise arising from both instrumental and astrophysical sources is handled using a combination of narrow bandstop filters and Gaussian Process regression. Sampling can be performed either using Dynamic Nested Sampling or using Hamiltonian Monte Carlo + umbrella sampling.

This software is powered by astropy, batman, celerite, dynesty, exoplanet, lightkurve, PyMC3, scipy, and starry.