A Quarter Century of Guitar Nebula/Filament Evolution

Kavli Affiliate: Roger W. Romani

| First 5 Authors: Martijn de Vries, Roger W. Romani, Oleg Kargaltsev, George Pavlov, Bettina Posselt

| Summary:

We have collected a new deep {it Chandra X-ray Observatory} ({it CXO})
exposure of PSR B2224+65 and the `Guitar Nebula’, mapping the complex X-ray
structure. This is accompanied by a new {it HST} H$alpha$ image of the head
of the Guitar. Comparing the {it HST} and {it 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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