PSR J2030+4415’s Remarkable Bow Shock, PWN, and Filament
Martijn de Vries, Roger W. Romani
Abstract
Abstract We report on new X-ray and optical observations of PSR J2030+4415, a gamma-ray pulsar with an H α bow shock. These data reveal the velocity structure of the bow shock apex and resolve unusual X-ray structure in its interior. In addition the system displays a very long, thin filament, extending at least 5′ at ∼130° to the pulsar motion vector. Careful astrometry, compared with a short archival exposure, detects the pulsar proper motion at 85 mas yr −1 . With the H α velocity structure this allows us to estimate the distance as 0.75 kpc.
Topics & Concepts
PulsarPhysicsAstrometryProper motionBow shock (aerodynamics)AstrophysicsShock (circulatory)Protein filamentAstronomyShock waveBiologyMechanicsMedicineInternal medicineGeneticsStarsPulsars and Gravitational Waves ResearchAstrophysical Phenomena and ObservationsGamma-ray bursts and supernovae