A Quarter Century of Guitar Nebula/Filament Evolution
Abstract
We have collected a new deep Chandra X-ray Observatory ( CXO) exposure of PSR B2224+65 and the `Guitar Nebula', mapping the complex X-ray structure. This is accompanied by a new HST Hα image of the head of the Guitar. Comparing the HST and CXO structures in 4 epochs over 25 years, we constrain the evolution of the TeV particles that light up the filament. Cross-field diffusion appears to be enhanced, likely by the injected particles, behind the filament's sharp leading edge, explaining the filament width and its evolving surface brightness profile.
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