Quantitative modelling of type Ia supernovae spectral time series II: Exploring the diversity of thermonuclear explosion scenarios

arXiv:2604.22927 · astro-ph.HE, astro-ph.IM, astro-ph.SR · Submitted 2026-04-24 · Read on arXiv

astro-ph.HE, astro-ph.IM, astro-ph.SR

Submitted: 2026-04-24

Updated: 2026-09-09

Comments: Additional figures and discussion added. 35 pages, 35 figures, and 4 tables, including those in appendices

Code: https://github.com/MarkMageeAstro/riddler

Project page: https://johannesbuchner.github.io/UltraNest

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

Terminology

• Core — 34× in this paper · explained in 2 episodes
• Abundance — 12× in this paper · explained in 1 episode
• Activation Function — 2× in this paper · explained in 1 episode
• Calibration — 2× in this paper · explained in 7 episodes
• Degeneracy — 1× in this paper · explained in 3 episodes
• Generative Model — 1× in this paper · explained in 2 episodes
• Generative Models — 1× in this paper · explained in 2 episodes
• Loss Function — 1× in this paper · explained in 2 episodes
• Metallicity — 1× in this paper · explained in 3 episodes

Sources

• The Zwicky Transient Facility
• PyTorch: An Imperative Style, High-Performance Deep Learning Library
• Optimal Training of Mean Variance Estimation Neural Networks

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