Implications of a "Fast Radio Burst" from a Galactic Magnetar

Abstract

A luminous radio burst was recently detected in temporal coincidence with a hard X-ray flare from the Galactic magnetar SGR 1935+2154 with a time and frequency structure consistent with cosmological fast radio bursts (FRB) and a fluence within a factor of $\lesssim 10$ of the least energetic extragalactic FRB previously detected. Although active magnetars are commonly invoked FRB sources, several distinct mechanisms have been proposed for generating the radio emission which make different predictions for the accompanying higher frequency radiation. We show that the properties of the coincident radio and X-ray flares from SGR 1935+2154, including their approximate simultaneity and relative fluence $E_{\mathrm{radio}}/E_{\mathrm{X}}\sim 10^{-5}$, as well as the duration and spectrum of the X-ray emission, are consistent with extant predictions for the synchrotron maser shock model. Rather than arising from the inner magnetosphere, the X-rays are generated by (incoherent) synchrotron radiation from thermal electrons heated at the same shocks which produce the coherent maser emission. Although the rate of SGR 1935+2154-like bursts in the local universe is not sufficient to contribute appreciably to the extragalactic FRB rate, the inclusion of an additional population of more active magnetars with stronger magnetic fields than the Galactic population can explain both the FRB rate as well as the repeating fraction, however only if the population of active magnetars are born at a rate that is at least two-orders of magnitude lower than that of SGR 1935+2154-like magnetars. This may imply that the more active magnetar sources are not younger magnetars formed in a similar way to the Milky Way population (e.g. via ordinary supernovae), but instead through more exotic channels such as superluminous supernovae, accretion-induced collapse or neutron star mergers.

21 pages, 9 figures; submitted to ApJL; comments welcome!

References in corpus (31)

• A bright millisecond radio burst of extragalactic origin
• The direct localization of a fast radio burst and its host
• Long gamma-ray bursts and core-collapse supernovae have different environments
• The Host Galaxy and Redshift of the Repeating Fast Radio Burst FRB 121102
• Fast Radio Bursts
• Fast radio bursts as synchrotron maser emission from decelerating relativistic blast waves
• A repeating fast radio burst source localised to a nearby spiral galaxy
• A single fast radio burst localized to a massive galaxy at cosmological distance
• INTEGRAL discovery of a burst with associated radio emission from the magnetar SGR 1935+2154
• A fast radio burst localised to a massive galaxy
• Canadian Hydrogen Intensity Mapping Experiment (CHIME) Pathfinder
• A Multi-telescope Campaign on FRB 121102: Implications for the FRB Population
• The host galaxies and progenitors of Fast Radio Bursts localized with the Australian Square Kilometre Array Pathfinder
• A sample of low energy bursts from FRB 121102
• FRB 121102 is coincident with a star forming region in its host galaxy
• A "Cosmic Comb" Model of Fast Radio Bursts
• Repeating Fast Radio Bursts from Magnetars with Low Magnetospheric Twist
• A long-period, violently-variable X-ray source in a young SNR
• Formation Rates and Evolution Histories of Magnetars
• The prevalence of repeating fast radio bursts
• The synchrotron maser emission from relativistic shocks in Fast Radio Bursts: 1D PIC simulations of cold pair plasmas
• Zooming In on the Progenitors of Superluminous Supernovae With the HST
• Radio continuum and polarization study of SNR G57.2+0.8 associated with magnetar SGR1935+2154
• A comparative study of host galaxy properties between Fast Radio Bursts and stellar transients
• Statistical properties magnetar bursts and FRB 121102
• STARE2: Detecting Fast Radio Bursts in the Milky Way
• Are Fast Radio Bursts Made By Neutron Stars?
• The multiwavelength counterparts of fast radio bursts
• A Revised Host Galaxy Association for GRB 020819B: A High-Redshift Dusty Starburst, Not a Low-Redshift Gas-Poor Spiral
• Comparative study of the inial spikes of SGR giant flares in 1998 and 2004 observed with GEOTAIL: Do magnetospheric instabilities trigger large scale fracturing of magnetar's crust?
• Learning About the Magnetar Swift J1834.9-0846 from its Wind Nebula

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• Quasi-periodic oscillations of the X-ray burst from the magnetar SGR J1935+2154 and associated with the fast radio burst FRB 200428
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• Dynamics of baryon ejection in magnetar giant flares: implications for radio afterglows, r-process nucleosynthesis, and fast radio bursts
• The Galactic neutron star population I - an extragalactic view of the Milky Way and the implications for fast radio bursts
• AGILE Observations of Fast Radio Bursts
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• Reanalysis of the X-ray burst associated FRB 200428 with Insight-HXMT observations
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• Narrow spectra of repeating fast radio bursts: A magnetospheric origin
• An X-ray Census of Fast Radio Burst Host Galaxies: Constraints on AGN and X-ray Counterparts
• Multi-wavelength and Multi-messenger Counterparts of Fast Radio Bursts
• Simultaneous and panchromatic observations of the Fast Radio Burst FRB 20180916B
• Bursts before Burst: A Comparative Study on FRB 200428-associated and FRB-absent X-ray Bursts from SGR J1935+2154
• The plasma suppression effect can be ignored in realistic FRB models invoking bunched coherent radio emission
• Hunting for gamma-ray emission from Fast Radio Bursts
• Multi-messenger astronomy with INTEGRAL
• r-Process Nucleosynthesis and Radioactively Powered Transients from Magnetar Giant Flares
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• Contemporaneous X-ray Observations of 30 Bright Radio Bursts from the Prolific Fast Radio Burst Source FRB 20220912A
• Kinetic Simulations of the Filamentation Instability in Pair Plasmas
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• Search for Coincident Gravitational-wave and Fast Radio Burst Events from 4-OGC and the First CHIME/FRB Catalog
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• Testing afterglow models of FRB 200428 with early post-burst observations of SGR 1935+2154
• Contemporaneous optical-radio observations of a fast radio burst in a close galaxy pair
• Constraints on the X-ray-to-radio fluence ratio of FRB 20240114A
• Fast Radio Bursts with Narrow Beaming Angles Can Escape from Magnetar Magnetospheres
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• The Northern Cross Fast Radio Burst project: V. Search for transient radio emission from Galactic magnetars
• Simultaneous view of the FRB~180301 with FAST and NICER during a bursting phase
• A broadband study of FRB20240114A with the Effelsberg 100-m radio telescope
• Free-free absorption in hot relativistic flows: application to fast radio bursts
• Numerical Modeling of Relativistic Effects in Synchrotron-Emitting Shocks
• X-ray and Radio Bursts from the Magnetar 1E1547.0-5408
• AGILE observations of a sample of repeating Fast Radio Burst sources
• Optical Transients from Fast Radio Bursts Heating Companion Stars in Close Binary Systems
• The Impact of Accretion on FRB Radiation Mechanisms in Binary Systems: Constraints and Implications
• AT2020hur: A Possible Optical Counterpart of FRB 180916B
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