Emission mechanisms of fast radio bursts

Yuri Lyubarsky

doi:https://doi.org/10.3390/universe7030056

Emission mechanisms of fast radio bursts

Yuri Lyubarsky

Department of Physics

Ben-Gurion University of the Negev

Research output: Contribution to journal › Review article › peer-review

Abstract

Fast radio bursts (FRBs) are recently discovered mysterious single pulses of radio emission, mostly coming from cosmological distances (∼1 Gpc). Their short duration, ∼1 ms, and large lumi-nosity demonstrate coherent emission. I review the basic physics of coherent emission mechanisms proposed for FRBs. In particular, I discuss the curvature emission of bunches, the synchrotron maser, and the emission of radio waves by variable currents during magnetic reconnection. Special attention is paid to magnetar flares as the most promising sources of FRBs. Non-linear effects are outlined that could place bounds on the power of the outgoing radiation.

Original language	American English
Article number	56
Journal	Universe
Volume	7
Issue number	3
DOIs	https://doi.org/10.3390/universe7030056
State	Published - 1 Jan 2021

Keywords

Neutron stars
Non-thermal emission mechanisms
Plasmas
Reconnection
Shock waves

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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https://doi.org/10.3390/universe7030056

Cite this

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title = "Emission mechanisms of fast radio bursts",

abstract = "Fast radio bursts (FRBs) are recently discovered mysterious single pulses of radio emission, mostly coming from cosmological distances (∼1 Gpc). Their short duration, ∼1 ms, and large lumi-nosity demonstrate coherent emission. I review the basic physics of coherent emission mechanisms proposed for FRBs. In particular, I discuss the curvature emission of bunches, the synchrotron maser, and the emission of radio waves by variable currents during magnetic reconnection. Special attention is paid to magnetar flares as the most promising sources of FRBs. Non-linear effects are outlined that could place bounds on the power of the outgoing radiation.",

keywords = "Neutron stars, Non-thermal emission mechanisms, Plasmas, Reconnection, Shock waves",

author = "Yuri Lyubarsky",

note = "Publisher Copyright: {\textcopyright} 2021 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2021",

month = jan,

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doi = "https://doi.org/10.3390/universe7030056",

language = "American English",

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AU - Lyubarsky, Yuri

PY - 2021/1/1

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N2 - Fast radio bursts (FRBs) are recently discovered mysterious single pulses of radio emission, mostly coming from cosmological distances (∼1 Gpc). Their short duration, ∼1 ms, and large lumi-nosity demonstrate coherent emission. I review the basic physics of coherent emission mechanisms proposed for FRBs. In particular, I discuss the curvature emission of bunches, the synchrotron maser, and the emission of radio waves by variable currents during magnetic reconnection. Special attention is paid to magnetar flares as the most promising sources of FRBs. Non-linear effects are outlined that could place bounds on the power of the outgoing radiation.

AB - Fast radio bursts (FRBs) are recently discovered mysterious single pulses of radio emission, mostly coming from cosmological distances (∼1 Gpc). Their short duration, ∼1 ms, and large lumi-nosity demonstrate coherent emission. I review the basic physics of coherent emission mechanisms proposed for FRBs. In particular, I discuss the curvature emission of bunches, the synchrotron maser, and the emission of radio waves by variable currents during magnetic reconnection. Special attention is paid to magnetar flares as the most promising sources of FRBs. Non-linear effects are outlined that could place bounds on the power of the outgoing radiation.

KW - Neutron stars

KW - Non-thermal emission mechanisms

KW - Plasmas

KW - Reconnection

KW - Shock waves

UR - http://www.scopus.com/inward/record.url?scp=85104089241&partnerID=8YFLogxK

U2 - https://doi.org/10.3390/universe7030056

DO - https://doi.org/10.3390/universe7030056

M3 - Review article

SN - 2218-1997

VL - 7

JO - Universe

JF - Universe

IS - 3

M1 - 56

ER -

Emission mechanisms of fast radio bursts

Abstract

Keywords

All Science Journal Classification (ASJC) codes

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