A glowing hand stretches across the cosmos, with its palm and fingers sculpted from the wreckage of a massive stellar explosion.
The eerie structure is part of the nebula MSH 15-52, powered by pulsar B1509-58 — a rapidly spinning neutron star that is only about 12 miles (20 kilometers) in diameter. By combining radio data from the Australia Telescope Compact Array (ATCA) with X-rays from NASA’s Chandra X-ray Observatory, astronomers created a new view of the nebula, which spans over 150 light-years and resembles a human hand reaching toward the remains of the supernova — formally known as RCW 89 — that formed the pulsar at the heart of the image.
“MSH 15–52 and RCW 89 show many unique features not found in other young sources,” according to a statement from the Chandra X-ray Observatory, releasing the new composite image. “There are, however, still many open questions regarding the formation and evolution of these structures.”
The central object, pulsar B1509-58, formed when a massive star ran out of fuel and collapsed before exploding as a supernova. The pulsar spins nearly seven times per second and has a magnetic field some 15 trillion times stronger than Earth’s. Despite its small size, it acts like a cosmic dynamo, accelerating particles to extreme energies and driving winds that carve the nebula into its hand-like form.
The new composite image paints the system in striking color: ATCA radio emission appears in red, Chandra’s X-rays glow in blue, orange and yellow, and optical data shows hydrogen gas in gold. Where the radio and X-ray signals overlap, they blend into purple, highlighting regions where the pulsar’s wind crashes into surrounding stellar debris.
The recent radio data uncovered delicate filaments aligned with magnetic fields, likely created as the pulsar wind smashes into leftover material from the stellar explosion.
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