The Vela Pulsar's Radio Nebula

Abstract

We have discovered that the radio nebula surrounding the Vela pulsar covers a much wider extent than previously reported, with two lobes to the North and South of the pulsar. Indications of this object have been reported previously, but its symmetric morphology around the pulsar and other details had not been identified as they were hidden due to poor sensitivity to low spatial frequencies. The structure is highly polarised and the polarisation vectors, once corrected for Faraday rotation, reveal symmetry with respect to the spin axis of the pulsar. The X-ray emission found by Chandra lies at the centre of this structure, in a region which has no detectable excess of radio emission. We estimate total fluxes and regional fluxes from the Northern and Southern lobes, plus the X-ray region at four radio frequencies; 1.4, 2.4, 5 and 8.5 GHz. We present the corresponding images in both the total and polarised intensities, as well as those showing the derotated linear polarisation vectors.

17 pages, to appear in MNRAS

Cited by in corpus (39)

• The Vela Pulsar's proper motion and parallax derived from VLBI observations
• A Dynamical Model for the Evolution of a Pulsar Wind Nebula inside a Non-Radiative Supernova Remnant
• Pulsar-Wind Nebulae: Recent Progress in Observations and Theory
• Pulsar wind nebulae with bow shocks: non-thermal radiation and cosmic ray leptons
• Particle Transport in Young Pulsar Wind Nebulae
• The long helical jet of the Lighthouse nebula, IGR J11014-6103
• X-ray Observations of Parsec-Scale Tails behind Two Middle-Aged Pulsars
• DA495 - an aging pulsar wind nebula
• The Complex Wind Torus and Jets of PSR B1706-44
• Vela pulsar wind nebula x-rays are polarized to near the synchrotron limit
• Observations of the neutral hydrogen surrounding the radio quiet neutron star RX J0822-4300 in Puppis A
• Time-dependent Modeling of Pulsar Wind Nebulae
• Polarization in the inner region of Pulsar Wind Nebulae
• X-ray emission from PSR J1809-1917 and its pulsar wind nebula, possibly associated with the TeV gamma-ray source HESS J1809-193
• Discovery of an Energetic Pulsar Associated with SNR G76.9+1.0
• Radio Polarization Observations of G319.9-0.7: A Bow-shock Nebula with an Azimuthal Magnetic Field Powered by Pulsar J1509-5850
• Radio Polarization Observations of the Snail: A Crushed Pulsar Wind Nebula in G327.1-1.1 with a Highly Ordered Magnetic Field
• The Vela and Geminga pulsars in the mid-infrared
• Pulsar Wind Nebulae with Thick Toroidal Structure
• Quantitative Age Estimation of Supernova Remnants and Associated Pulsars
• Extended hard X-ray emission from the Vela pulsar wind nebula
• Chandra Confirmation of a Pulsar Wind Nebula in DA 495
• From young to old: the evolutionary path of Pulsar Wind Nebulae
• HST optical polarimetry of the Vela pulsar & nebula
• A Radio Continuum and Polarisation Study of the pulsar wind nebula CTB87 (G74.9+1.2)
• Vela X at 31 GHz
• The Age Evolution of the Radio Morphology of Supernova Remnants
• Magnetic Field Structure and Faraday Rotation of the Plerionic Supernova Remnant G21.5$-$0.9
• On the Gamma-Ray Nebula of Vela Pulsar. I. Very Slow Diffusion of Energetic Electrons within the TeV Nebula
• MHD models of Pulsar Wind Nebulae
• High-Resolution Radio Study of the Dragonfly Nebula
• Discovery of a radio nebula around PSR J0855-4644
• On the solution of the polarisation gain terms for VLBI data collected with antennas having Nasmyth or E-W mounts
• Radio Study of the Pulsar Wind Nebula Powered by PSR B1706-44
• The Vela pulsar and its pulsar wind nebula Vela-X using 13 years of Fermi-LAT Observations
• The KaVA and KVN Pulsar Project
• High-resolution Radio Study of Pulsar Wind Nebula MSH 15-52 and Supernova Remnant RCW 89
• HST and VLT observations of Isolated Neutron Stars
• Future X-ray Polarimetry of Relativistic Accelerators: PWNe and SNRs