NASAのチャンドラとハッブル、「炎を投げる」ギター星雲を発見(NASA’s Chandra, Hubble Tune Into ‘Flame-Throwing’ Guitar Nebula)

2024-11-20 NASA

＜関連情報＞

• https://www.nasa.gov/missions/chandra/nasas-chandra-hubble-tune-into-flame-throwing-guitar-nebula/
• https://iopscience.iop.org/article/10.3847/1538-4357/ac9794

ギター星雲／フィラメントの進化の四半世紀 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, and Noel Klingler
The Astrophysical Journal  Published: 2022 November 8
DOI:10.3847/1538-4357/ac9794

Abstract

We have collected a new deep Chandra X-Ray Observatory exposure of PSR B2224+65 and the “Guitar Nebula,” mapping the complex X-ray structure. This is accompanied by a new Hubble Space Telescope (HST) Hα image of the head of the Guitar. Comparing the HST and Chandra structures in four epochs over 25 yr, 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.