A dispersion excess from pulsar wind nebulae and supernova remnants: Implications for pulsars and FRBs

Abstract

Young pulsars and the pulsar wind nebulae (PWNe) or supernova remnants (SNRs) that surround them are some of the most dynamic and high-powered environments in our Universe. With the rise of more sensitive observations, the number of pulsar-SNR and PWN associations (hereafter, SNR/PWN) has increased, yet we do not understand to which extent this environment influences the pulsars' impulsive radio signals. We studied the dispersive contribution of SNRs and PWNe on Galactic pulsars, and considered their relevance to fast radio bursts (FRBs) such as FRB 121102. We investigated the dispersion measure (DM) contribution of SNRs and PWNe by comparing the measured DMs of Galactic pulsars in a SNR/PWN to the DM expected only from the intervening interstellar electrons, using the NE2001 model. We find that a two-$\sigma$ DM contribution of SNRs and PWNe to the pulsar signal exists, amounting to $21.1\pm 10.6$ pc cm${}^{-3}$. The control sample of pulsars unassociated with a SNR/PWN shows no excess. We model the SNR and PWN electron densities for each young pulsar in our sample and show that these indeed predict an excess of this magnitude. By extrapolating to the kind of fast-spinning, high magnetic field, young pulsars that may power FRBs, we show their SNR and PWN are capable of significantly contributing to the observed DM.

arXiv comment7 pages, 4 figures, 2 tables. Accepted for publication in A&A

References in corpus (44)

• emcee: The MCMC Hammer
• The ATNF Pulsar Catalogue
• A bright millisecond radio burst of extragalactic origin
• The ATNF Pulsar Catalogue
• A New Electron Density Model for Estimation of Pulsar and FRB Distances
• The direct localization of a fast radio burst and its host
• The Evolution and Structure of Pulsar Wind Nebulae
• The Host Galaxy and Redshift of the Repeating Fast Radio Burst FRB 121102
• Modelling the Galactic Interstellar Extinction Distribution in Three Dimensions
• An extreme magneto-ionic environment associated with the fast radio burst source FRB 121102
• A single fast radio burst localized to a massive galaxy at cosmological distance
• The Repeating Fast Radio Burst FRB 121102 as Seen on Milliarcsecond Angular Scales
• Millisecond Magnetar Birth Connects FRB 121102 to Superluminous Supernovae and Long Duration Gamma-ray Bursts
• A fast radio burst localised to a massive galaxy
• The Vertical Structure of Warm Ionised Gas in the Milky Way
• A Burst in a Wind Bubble and the Impact on Baryonic Ejecta: High-Energy Gamma-Ray Flashes and Afterglows from Fast Radio Bursts and Pulsar-Driven Supernova Remnants
• Modeling the spectral evolution of PWNe inside SNRs
• On Pulsar Distance Measurements and their Uncertainties
• Ionizing Photon Emission Rates from O- and Early B-type Stars and Clusters
• Precision Astrometry with the Very Long Baseline Array: Parallaxes and Proper Motions for 14 Pulsars
• Estimating extragalactic Faraday rotation
• FRB 121102 is coincident with a star forming region in its host galaxy
• Pulsar Parallaxes at 5 GHz with the Very Long Baseline Array
• The Compact X-ray Source 1E 1547.0-5408 and the Radio Shell G327.24-0.13: A New Proposed Association between a Candidate Magnetar and a Candidate Supernova Remnant
• The Impact of a Supernova Remnant on Fast Radio Bursts
• Local Circumnuclear Magnetar Solution to Extragalactic Fast Radio Bursts
• Near Infrared properties of 12 Globular Clusters toward the inner Bulge of the Galaxy
• FRB repetition and non-Poissonian statistics
• Dispersion and Rotation Measure of Supernova Remnants and Magnetized Stellar Winds: Application to Fast Radio Bursts
• The SNR G106.3+2.7 and its Pulsar Wind Nebula: relics of triggered star formation in a complex environment
• Dispersion Measure Variation of Repeating Fast Radio Burst Sources
• The NANOGrav Nine-year Data Set: Astrometric Measurements of 37 Millisecond Pulsars
• Radio Wave Propagation and the Provenance of Fast Radio Bursts
• Discovery of a highly energetic pulsar associated with IGR J14003-6326 in a young uncataloged Galactic supernova remnant G310.6-1.6
• Constraining the age of a magnetar possibly associated with FRB 121102
• Deep HST Imaging in NGC 6397: Stellar Dynamics
• The Age of the Inner Halo Globular Cluster NGC 6652
• Pulsar Wind Bubble Blowout from a Supernova
• The radio SNR G65.1+0.6 and its associated pulsar J1957+2831
• Chandra Detection of a Synchrotron Nebula Around the Vela-like Pulsar J1016-5857
• H$\alpha$ intensity map of the repeating fast radio burst FRB 121102 host galaxy from Subaru/Kyoto 3DII AO-assisted optical integral-field spectroscopy
• Possible optical counterpart of PSR J1357-6429
• Revisiting the dispersion measure of fast radio bursts associated with gamma-ray burst afterglows
• A $BVI$ Photometric Study of the Near-Galactic Center Globular Cluster NGC 6517 (C1759-089)

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• The TRAPUM Small Magellanic Cloud pulsar survey with MeerKAT: I. Discovery of seven new pulsars and two Pulsar Wind Nebula associations
• PSR J1922+37: a 1.9-second pulsar discovered in the direction of the old open cluster NGC 6791
• Indication for Decreasing Dispersion Measure in the Population of Repeating Fast Radio Bursts and Connection to Young Supernova Remnant Expansion