Tag Archive for 'Faraday rotation'

This illustration depicts Faraday rotation in the afterglow of a gamma-ray burst. A powerful jet (upper left) sends polarized radio waves outward through the thin wall of a surrounding bubble of magnetized gas called an HII region. As the light passes through this material, its polarization angle is twisted by the magnetic field. Because the effect is stronger at longer wavelengths, the red and blue waves, which represent different radio wavelengths, exit the bubble oscillating in different directions. By measuring this difference, astronomers were able to map the magnetic environment surrounding GRB 260310A for the first time. Image credit: NSF / AUI / NRAO / M. Weiss

Astronomers Detect Gamma-Ray Burst’s Magnetic Fingerprint

Jul 15, 2026 by News Staff

Using NSF’s Very Large Array (VLA), astronomers made the first radio detection of polarized light and Faraday rotation from a gamma-ray burst afterglow,...

An artist’s impression of FRB 110523 reaching Earth; the colors represent the burst arriving at different radio wavelengths, with long wavelengths (red) arriving seconds after short wavelengths (blue). Image credit: Jingchuan Yu / Beijing Planetarium.

Astronomers Detect Mysterious Burst of Radio Waves 6 Billion Light-Years Away

Dec 3, 2015 by Enrico de Lazaro

Astronomers have detected a so-called fast radio burst from around 6 billion light-years away, one of less than two dozen such events they’ve discovered...