Radio Emission from Pulsar Wind Nebulae without Surrounding Supernova Ejecta: Application to FRB 121102

Abstract

In this paper, we propose a new scenario in which a rapidly-rotating strongly-magnetized pulsar without any surrounding supernova ejecta produces fast radio bursts (FRBs) repeatedly via some mechanisms, and meanwhile, an ultra-relativistic electron/positron pair wind from the pulsar sweeps up its ambient dense interstellar medium, giving rise to a non-relativistic pulsar wind nebula (PWN). We show that the synchrotron radio emission from such a PWN is bright enough to account for the recently-discovered persistent radio source associated with the repeating FRB 121102 in reasonable ranges of the model parameters. In addition, our PWN scenario is consistent with the non-evolution of the dispersion measure inferred from all the repeating bursts observed in four years.

6 pages, 1 figure, ApJ Letters in press

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• The confrontation of the shock-powered synchrotron maser model with the Galactic FRB 200428
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• Repeating FRB 121102 : Eight-year Fermi-LAT Upper Limits and Implications
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• Constraining Parameters in Pulsar Models of Repeating FRB 121102 with High-Energy Follow-up Observations
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• A MeerKAT, e-MERLIN, H.E.S.S. and Swift search for persistent and transient emission associated with three localised FRBs
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• Early Optical Observations of GRB 150910A: Bright Jet Optical Afterglow and X-ray Dipole Radiation from a Magnetar Central Engine
• A search for short-term hard X-ray bursts in the direction of the repeating FRB 121102
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• Periodically-repeating fast radio bursts: Lense-Thirring precession of a debris disk?
• Rescuing The Primordial Black Holes all-Dark Matter Hypothesis from The Fast Radio Bursts Tension
• Constraints on Pulsed Emission Model for Repeating FRB 121102
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• Quasi-steady emission from repeating fast radio bursts can be explained by magnetar wind nebulae
• FRB cosmology with the RM-PRS Luminosity Correlation
• Clumpy jets from black hole-massive star binaries as engines of Fast Radio Bursts
• A search for hard X-ray bursts occurring simultaneously to fast radio bursts in the repeating FRB 121102
• Milliarcsecond-scale spectrum of the persistent radio source associated with FRB 20190417A and constraints for FRB 20181030A
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• FRB 190520B embedded in a magnetar wind nebula and supernova remnant: luminous persistent radio source, decreasing dispersion measure and large rotation measure