Overview
- Researchers reported in a preprint posted Sept. 15 that MeerKAT observations showed rapid, recurring and highly circularly polarized radio bursts at 0.85–3.5 GHz that they localized to Beta Pictoris b.
- The signal's polarization and burst behavior match the electron‑cyclotron maser instability, the same process that produces auroras on Earth and Jupiter, which lets scientists infer magnetic field strength from the emission.
- From the radio frequencies the team estimates a field strength on the order of thousands of gauss, far stronger than Earth's field and consistent with expectations for a young, massive gas giant.
- The result is a preprint and has not yet been peer reviewed, and researchers say key follow-ups are needed including a rotation‑modulated pulsation search and independent localization checks.
- If confirmed, the method would open a new way to study exoplanet interiors, rotation and atmospheric protection, but broader surveys will need roughly five to seven times better radio sensitivity from next‑generation arrays.