Chandra observations of CTA 1 PWN show jet/torus morphology, constrain pulsar velocity to ≲200 km/s, and model low magnetic field with PeV electron cutoff in a young low-efficiency nebula.
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TeV-selected PWNe and unidentified sources yield beaming fractions of 0.1-0.3 across radio, gamma-ray, and X-ray bands, with survey-to-survey differences explained by selection biases or older pulsars and reproducible via time-dependent opening angles.
Off-peak emission from the region of 4HWC J2029+3641 is point-like with a curved spectrum consistent with the outer-gap model of the nearby pulsar PSR J2030+3641 rather than an extended nebula.
The routine model with bulk viscosity best reproduces the Crab pulsar's magnetic inclination angle, spin period, and derivative, while electromagnetic torque and accretion suppress inclination growth and most other effects are negligible.
citing papers explorer
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Chandra X-ray Observations of the Pulsar Wind Nebula within CTA 1
Chandra observations of CTA 1 PWN show jet/torus morphology, constrain pulsar velocity to ≲200 km/s, and model low magnetic field with PeV electron cutoff in a young low-efficiency nebula.
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Constraining the Pulsar Beaming Fraction with TeV-Selected Galactic Pulsar Wind Nebulae and unidentified TeV Sources
TeV-selected PWNe and unidentified sources yield beaming fractions of 0.1-0.3 across radio, gamma-ray, and X-ray bands, with survey-to-survey differences explained by selection biases or older pulsars and reproducible via time-dependent opening angles.
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4HWC J2029$+$3641: a Pulsar Wind Nebula Powered by PSR J2030$+$3641?
Off-peak emission from the region of 4HWC J2029+3641 is point-like with a curved spectrum consistent with the outer-gap model of the nearby pulsar PSR J2030+3641 rather than an extended nebula.
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Evolution of Crab Pulsar: Magnetic Inclination Angle and Spin
The routine model with bulk viscosity best reproduces the Crab pulsar's magnetic inclination angle, spin period, and derivative, while electromagnetic torque and accretion suppress inclination growth and most other effects are negligible.