The Crab Nebula, formed from a supernova recorded in 1054 ad, is the brightest object in the TeV (teraelectronvolt) gamma-ray sky. Measuring the extension of the gamma-ray nebula helps us to understand particle acceleration and interaction at the highest photon energies.
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NASA, ESA, G. Dubner (IAFE, CONICET-University of Buenos Aires) et al.; A. Loll et al.; T. Temim et al.; F. Seward et al.; VLA/NRAO/AUI/NSF; Chandra/CXC; Spitzer/JPL-Caltech; XMM-Newton/ESA; and Hubble/STScI.
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Fang, K. An extended Crab at TeV energies. Nat Astron 4, 117–118 (2020). https://doi.org/10.1038/s41550-019-0926-5
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DOI: https://doi.org/10.1038/s41550-019-0926-5
