NASA has released a new composite image of the pulsar B1509-58 and its surrounding nebula MSH 15-52—nicknamed the “Cosmic Hand”—by combining fresh radio data from the Australia Telescope Compact Array with X-ray observations from the Chandra X-ray Observatory. The resulting 150-light-year-wide portrait overlays ATCA’s red radio filaments with Chandra’s blue, orange and yellow X-ray structures, offering the sharpest multi-wavelength view of the object since Chandra’s first image in 2009. The study, led by Shumeng Zhang of the University of Hong Kong and published in The Astrophysical Journal, traces complex filaments that align with the nebula’s magnetic field and highlights unexpected mismatches between radio and X-ray emission. Notably, the pulsar’s lower jet and parts of its “fingers” appear bright in X-rays but lack radio signatures, indicating highly energetic particles may be leaking along magnetic field lines. ATCA data also show patchy radio emission from the adjacent supernova remnant RCW 89 extending beyond the X-ray boundary, suggesting an ongoing collision with a dense hydrogen cloud. B1509-58, a neutron star only about 12 miles (19 km) across, spins roughly seven times per second and generates an intense magnetic field some 15 trillion times stronger than Earth’s. The new observations refine models of how such pulsar winds interact with supernova debris and could improve understanding of particle acceleration and magnetic-field structures in young remnants.
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