A dynamic magneto-ionic environment around a long-period radio transient

arXiv:2609.23259 · astro-ph.HE, astro-ph.SR · Submitted 2026-09-20 · Read on arXiv

astro-ph.HE, astro-ph.SR

Submitted: 2026-09-20

Updated: 2026-09-20

Comments: 28 pages, 3 figures plus 6 figures in the methods, the initial submission on July 12, comments are welcome

Code: https://github.com/scottransom/presto

Project page: http://fast.bao.ac.cn

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

Terminology

• Calibration — 13× in this paper · explained in 7 episodes
• Aperture — 4× in this paper · explained in 1 episode
• Trace — 3× in this paper · explained in 2 episodes
• Clustering — 2× in this paper · explained in 2 episodes
• Five-hundred-meter Aperture Spherical Telescope — 2× in this paper
• Consistency — 1× in this paper · explained in 3 episodes
• Signal-to-noise ratio (SNR) — 1× in this paper · explained in 2 episodes
• Wavelet Transform — 1× in this paper · explained in 2 episodes

Sources

• A 44-minute periodic radio transient in a supernova remnant
• Ultra-long period compact sources: a glimpse into observational breakthroughs and theoretical challenges
• Detection of Cyclotron Absorption in the Radio Emission of GPM 1839-10

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