Direct Retrieval of Protoplanetary Disk Dust Properties using Auto-differentiable Gaussian Processes and Its Application to the HD 169142 Disk

arXiv:2607.12618 · astro-ph.EP, astro-ph.IM · Submitted 2026-07-14 · Read on arXiv

Tomohiro C. Yoshida, Enrique Macías, Giovanni Rosotti, Stefano Facchini, Elena Viscardi, Kiyoaki Doi

astro-ph.EP, astro-ph.IM

Submitted: 2026-07-14

Comments: 28 pages, 21 figures, accepted for publication in ApJ. Code: https://github.com/tomyoshida/frap, Docs: https://frap.readthedocs.io/

Code: https://github.com/tomyoshida/frap

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

Calibration — 23× in this paper · explained in 7 episodes
Gaussian Processes — 7× in this paper
Highest Density Intervals — 6× in this paper
Accuracy — 3× in this paper · explained in 1 episode
Degeneracy — 2× in this paper · explained in 3 episodes
Alignment — 1× in this paper · explained in 1 episode
Aperture — 1× in this paper · explained in 1 episode
Aperture Photometry — 1× in this paper · explained in 1 episode
Bayesian Inference — 1× in this paper · explained in 5 episodes
Cooperation — 1× in this paper · explained in 2 episodes
European Southern Observatory — 1× in this paper
Fidelity — 1× in this paper · explained in 2 episodes
Latent Space — 1× in this paper · explained in 7 episodes
Markov Chain Monte Carlo — 1× in this paper
Physical Constraints — 1× in this paper · explained in 7 episodes

Sources

Composable Effects for Flexible and Accelerated Probabilistic Programming in NumPyro

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