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Free Neutrons Could Flash Before the Kilonova Glows
Radiative-transfer models shift from X-rays in minutes to ultraviolet over hours, with a distinct far-UV bump from tiny neutron masses.
Summary
Radiative-transfer models shift from X-rays in minutes to ultraviolet over hours, with a distinct far-UV bump from tiny neutron masses.
The simulations predict that as little as ten-millionth of a solar mass in free neutrons can alter the ultraviolet light curve. UVEX and ULTRASAT could test the model after future neutron-star mergers.
Why it matters
Radiative-transfer models shift from X-rays in minutes to ultraviolet over hours, with a distinct far-UV bump from tiny neutron masses.
Limits and context
No additional limitation was separately recorded.
Key claims
Radiative-transfer models shift from X-rays in minutes to ultraviolet over hours, with a distinct far-UV bump from tiny neutron masses.
Evidence: source-2026-09-10-020
Sources
- arXiv preprint 2609.09311arXiv · primary research
Corrections
No corrections have been recorded for this story.