A Quarter Century of Guitar Nebula/Filament Evolution
Martijn de Vries, Roger W. Romani, Oleg Kargaltsev, George Pavlov,, Bettina Posselt, Patrick Slane, Niccolo' Bucciantini, C.-Y Ng, Noel, Klingler

TL;DR
This study presents a 25-year multi-epoch analysis of the Guitar Nebula's X-ray and H-alpha structures, revealing insights into the evolution of TeV particles and filament dynamics influenced by particle diffusion.
Contribution
It provides the first long-term observational constraints on the evolution of the Guitar Nebula's filamentary structure and TeV particle behavior.
Findings
Enhanced cross-field diffusion behind the filament's leading edge.
Evolution of filament surface brightness over 25 years.
Constraints on TeV particle evolution in pulsar nebulae.
Abstract
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 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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Taxonomy
TopicsAstrophysical Phenomena and Observations · Astrophysics and Cosmic Phenomena · Galaxies: Formation, Evolution, Phenomena
