HAWC detection of high-energy gamma-ray emission surrounding middle-aged pulsars

Pulsars are rapidly spinning neutron stars—remnants of massive star explosions—that blast electromagnetic radiation at regular intervals ranging from seconds to milliseconds. As a pulsar rotates, its beams of radiation sweep across outer space like a cosmic lighthouse. Scientists have identified high-energy gamma-ray emission around some pulsars, called TeV halos, but it remains unclear whether TeV […]