The absence of periodicity in repeating FRB

J. I. Katz

doi:10.1093/mnras/stac1059

The absence of periodicity in repeating FRB

J. I. Katz

Department of Physics

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10 Scopus citations

Abstract

Popular fast radio burst (FRB) models involve rotating magnetized neutron stars, yet no rotational periodicities have been found. Small data sets exclude exact periodicity in FRB 121102. Recent observations of over 1500 bursts from each of FRB 121102 and FRB 20201124A have also not found periodicity. Periodograms of events with cosine-distributed random offsets as large as ±0.6P from a strict period P would still reveal the underlying periodicity. The sensitivity of periodograms of long data series, such as bursts observed on multiple days, to slow frequency drifts is mitigated by considering individual observing sessions, and results are shown for FRB 121102. Models of repeating FRB without intrinsic periodicity are considered, as are models of apparently non-repeating FRBs.

Original language	English
Pages (from-to)	1925-1931
Number of pages	7
Journal	Monthly Notices of the Royal Astronomical Society
Volume	513
Issue number	2
DOIs	https://doi.org/10.1093/mnras/stac1059
State	Published - Jun 1 2022

Keywords

accretion
accretion discs
radio continuum
stars: black holes
stars: magnetars
transients: fast radio bursts

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10.1093/mnras/stac1059

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title = "The absence of periodicity in repeating FRB",

abstract = "Popular fast radio burst (FRB) models involve rotating magnetized neutron stars, yet no rotational periodicities have been found. Small data sets exclude exact periodicity in FRB 121102. Recent observations of over 1500 bursts from each of FRB 121102 and FRB 20201124A have also not found periodicity. Periodograms of events with cosine-distributed random offsets as large as ±0.6P from a strict period P would still reveal the underlying periodicity. The sensitivity of periodograms of long data series, such as bursts observed on multiple days, to slow frequency drifts is mitigated by considering individual observing sessions, and results are shown for FRB 121102. Models of repeating FRB without intrinsic periodicity are considered, as are models of apparently non-repeating FRBs.",

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AU - Katz, J. I.

PY - 2022/6/1

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N2 - Popular fast radio burst (FRB) models involve rotating magnetized neutron stars, yet no rotational periodicities have been found. Small data sets exclude exact periodicity in FRB 121102. Recent observations of over 1500 bursts from each of FRB 121102 and FRB 20201124A have also not found periodicity. Periodograms of events with cosine-distributed random offsets as large as ±0.6P from a strict period P would still reveal the underlying periodicity. The sensitivity of periodograms of long data series, such as bursts observed on multiple days, to slow frequency drifts is mitigated by considering individual observing sessions, and results are shown for FRB 121102. Models of repeating FRB without intrinsic periodicity are considered, as are models of apparently non-repeating FRBs.

AB - Popular fast radio burst (FRB) models involve rotating magnetized neutron stars, yet no rotational periodicities have been found. Small data sets exclude exact periodicity in FRB 121102. Recent observations of over 1500 bursts from each of FRB 121102 and FRB 20201124A have also not found periodicity. Periodograms of events with cosine-distributed random offsets as large as ±0.6P from a strict period P would still reveal the underlying periodicity. The sensitivity of periodograms of long data series, such as bursts observed on multiple days, to slow frequency drifts is mitigated by considering individual observing sessions, and results are shown for FRB 121102. Models of repeating FRB without intrinsic periodicity are considered, as are models of apparently non-repeating FRBs.

KW - accretion

KW - accretion discs

KW - radio continuum

KW - stars: black holes

KW - stars: magnetars

KW - transients: fast radio bursts

UR - https://www.scopus.com/pages/publications/85130364353

U2 - 10.1093/mnras/stac1059

DO - 10.1093/mnras/stac1059

M3 - Article

AN - SCOPUS:85130364353

SN - 0035-8711

VL - 513

SP - 1925

EP - 1931

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 2

ER -

The absence of periodicity in repeating FRB

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Keywords

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