The 1997 event in the Crab pulsar revisited
arXiv:1008.4494 · doi:10.1111/j.1365-2966.2010.17459.x
Abstract
A complex event observed in the radio pulses from the Crab pulsar in 1997 included echoes, a dispersive delay, and large changes in intensity. It is shown that these phenomena were due to refraction at the edge of a plasma cloud in the outer region of the Crab Nebula. Several similar events have been observed, although in less detail. It is suggested that the plasma cloud is in the form of filaments with diameter around 3 x 10^11m and electron density of order 10^4 cm-3
5 pages 4 figs Accepted by MNRAS
References in corpus (5)
- The Gaussian Plasma Lens in Astrophysics. Refraction
- A Precise Proper Motion for the Crab Pulsar, and the Difficulty of Testing Spin-Kick Alignment for Young Neutron Stars
- A Plasma Prism Model for an Anomalous Dispersion Event in the Crab Pulsar
- Bright Giant Pulses from the Crab Nebula Pulsar: Statistical Properties, Pulse Broadening and Scattering due to the Nebula
- Correlation of the scattering and dispersion events in the Crab Nebula pulsar
Cited by in corpus (21)
- Fast Radio Bursts
- Fast Radio Bursts: An Extragalactic Enigma
- FRB 121102 Bursts Show Complex Time-Frequency Structure
- Lensing of Fast Radio Bursts by Plasma Structures in Host Galaxies
- Two families of astrophysical diverging lens models
- The CHIME Pulsar Project: System Overview
- The largest glitch observed in the Crab pulsar
- Pulse Morphology of the Galactic Center Magnetar PSR J1745-2900
- Temporal variations in scattering and dispersion measure in the Crab Pulsar and their effect on timing precision
- The NANOGrav 11-year Data Set: Pulse Profile Variability
- Low-frequency pulse profile variation in PSR B2217+47: evidence for echoes from the interstellar medium
- Time variation in the low frequency spectrum of Vela-like pulsar B1800-21
- Scattering features and variability of the Crab pulsar
- Induced Polarization from Birefringent Pulse Splitting in Magnetoionic Media
- Propagation effects in the FRB 20121102A spectra
- Plasma lensing near the eclipses of the Black Widow pulsar B1957+20
- The Multiple Images of the Plasma Lensing FRB
- Magnetized Filament Models for Diverging Plasma Lenses
- Simulating FRB Morphologies and Coherent Phase Correlation Signatures from Multi-Plane Astrophysical Lensing
- The 1997 Event in the Crab Pulsar in X-rays
- Plasma lens with frequency-dependent dispersion measure effects on fast radio bursts