Synchrotron and free-free mapping with simulated REACH observations between 50-170 MHz

arXiv:2607.00299 · astro-ph.CO, astro-ph.GA · Submitted 2026-07-01 · Read on arXiv

Daniel Robins, Dominic Anstey, Harry Bevins, Eloy de Lera Acedo, Melis O. Irfan

astro-ph.CO, astro-ph.GA

Submitted: 2026-07-01

Comments: 21 pages, 15 figures, reference added

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

Terminology

• Degeneracy — 15× in this paper · explained in 3 episodes
• Adam — 7× in this paper · explained in 2 episodes
• Calibration — 6× in this paper · explained in 7 episodes
• Bayesian Inference — 3× in this paper · explained in 5 episodes
• Interpretability — 3× in this paper · explained in 15 episodes
• Accuracy — 2× in this paper · explained in 1 episode
• Robustness — 2× in this paper · explained in 5 episodes
• Abundance — 1× in this paper · explained in 1 episode
• Anti-correlation — 1× in this paper · explained in 3 episodes
• Aperture — 1× in this paper · explained in 1 episode
• Epoch of Reionization — 1× in this paper
• Scaling Laws — 1× in this paper · explained in 4 episodes
• Science and Technology Facilities Council — 1× in this paper

Sources

• Synchrotron Emission from the Galaxy
• Automatic Laplace Collapsed Sampling: Scalable Marginalisation of Latent Parameters via Automatic Differentiation
• The Python Sky Model 3 software

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