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arXiv · 2501.07577

The Guitar's Magnetic Field Revealed by Starlight Polarization

Jack T. Dinsmore·Roger W. Romani
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Abstract

The Guitar nebula surrounding PSR B2224+65 boasts a pulsar X-ray filament likely aligned with the local magnetic field. We present new RoboPol stellar polarization data distributed along the line-of-sight to the pulsar. The polarizing effect of intervening magnetized dust allows us to extract a model for the dust-weighted magnetic field. We detect a magnetic field angle consistent with the filament if the pulsar is located in the more distant zone of its parallax-estimated distance range.

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Jack T. Dinsmore, Roger W. Romani. 2025-01-13. The Guitar's Magnetic Field Revealed by Starlight Polarization. https://doi.org/10.3847/1538-4357%2Fadafa8

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