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R. M. Shannon

2 articles · 30 co-authors · latest: 2026-07-01

Tuning Into the Hum of Spinning Stars

If neutron stars had tiny bumps, they would constantly hum with gravitational waves. Using LIGO, scientists searched for that hum from 34 pulsars, the largest search of its kind. No signals were found, which pushes the theoretical limits even lower. The Crab pulsar, for instance, turns less than 0.0
arXiv:2603.25938 · 2026-03-26

Dancing Dispersion: The Millisecond Life of a Neutron Star

FRB 20250613A, caught in a dwarf galaxy at z=0.0987, surprised us: its dispersion varied 50 times within minutes. The bursts repeat with a rhythm of 6.8 ms, as if a neutron star is spinning. And most strikingly, the brighter the pulse, the cleaner the ether: the radio wave accelerates oncoming elect
arXiv:2607.00505v1 · 2026-07-01