KMT-2025-BLG-1314 and KMT-2025-BLG-1392: two microlensing planetary/brown-dwarf candidates analyzed with differentiable code

arXiv:2603.01735 · astro-ph.EP, astro-ph.GA, astro-ph.IM, astro-ph.SR · Submitted 2026-03-02 · Read on arXiv

astro-ph.EP, astro-ph.GA, astro-ph.IM, astro-ph.SR

Submitted: 2026-03-02

Updated: 2026-03-02

Comments: 20 pages, 7 figures, submitted to RAA

DOI: 10.1088/1674-4527/ae6f92

Code: https://github.com/JAXtronomy/awesome-JAXtronomy

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

Terminology

• Degeneracy — 3× in this paper · explained in 3 episodes
• Microlensing — 3× in this paper · explained in 2 episodes

Sources

• BlackJAX: Composable Bayesian inference in JAX
• ET White Paper: To Find the First Earth 2.0
• MASADA: From Microlensing Planet Mass-Ratio Function to Planet Mass Function
• The No-U-Turn Sampler: Adaptively Setting Path Lengths in Hamiltonian Monte Carlo
• The Korea Microlensing Telescope Network (KMTNet) Alert Algorithm and Alert System
• microJAX: A Differentiable Framework for Microlensing Modeling with GPU-Accelerated Image-Centered Ray Shooting
• Composable Effects for Flexible and Accelerated Probabilistic Programming in NumPyro
• A Newly Identified Degeneracy Keeps the Planetary Interpretation Viable for OGLE-2011-BLG-0950

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