Synthesising the intrinsic FRB population using frbpoppy

Gardenier, Donald; Leeuwen, J. van; Connor, Liam; Petroff, Emily

doi:10.1051/0004-6361/201936404

Cited by 39 publications

(56 citation statements)

References 131 publications

(208 reference statements)

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“…Taylor & Manchester 1977). To this end, we presented frbpoppy in Gardenier et al (2019): a code base capable of modelling one-off FRBs, and thus constraining properties of the intrinsic FRB source population. Additional constraints on the FRB source population can, however, be found by looking at repeating FRB sources (see e.g.…”

Section: Simulating a Repeater Populationmentioning

confidence: 99%

“…When modelling the observations, repeating sources pose a greater challenge than one-off sources. One-off bursts have an equal chance of falling anywhere within a beam pattern (see Gardenier et al 2019). This no longer holds when considering repeating sources; here, the locations in the beam pattern of multiple bursts from a single source are correlated.…”

Section: Surveying Repeater Populationsmentioning

confidence: 99%

“…While with one-offs a 1D beam pattern suffices, a realistic simulation of the repeating population, as detected with large, asymmetric beams such as those used by CHIME, requires 2D beam patterns. To survey repeating populations, we used the formulas given in Gardenier et al (2019) to simulate Gaussian and Airy beam patterns as 2D matrices, and we used a field-of-view (FoV) parameter to scale beam patterns relative to the survey. The Apertif and HTRU beam patterns available in frbpoppy can be scaled in a similar manner.…”

Section: Surveying Repeater Populationsmentioning

confidence: 99%

“…In studies of pulsars (Taylor & Manchester 1977), gamma-ray bursts (Ghirlanda et al 2013), and stellar evolution (Izzard & Halabi 2018), population synthesis has proven to be a powerful tool. To this end, we previously implemented an open-source FRB POPulation sythesis package in PYthon (frbpoppy; Gardenier et al 2019). This first version was capable of modelling one-off FRBs and successfully reproducing the observed one-off FRB populations as seen by the High Time Resolution Universe (HTRU) survey and by ASKAP.…”

Section: Introductionmentioning

confidence: 99%

“…frbpoppy takes a different approach, with increased focus on survey modelling to replicate a wide range of selection effects. Additionally, frbpoppy was designed from the start to be an open source, modular Python package for easy use by the community (Gardenier et al 2019). Simulations of the repeating FRB population are increasingly being used to probe various aspects of the intrinsic FRB population (e.g.…”

Section: Introductionmentioning

confidence: 99%

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Synthesising the repeating FRB population using frbpoppy

Gardenier

Connor

Leeuwen

et al. 2021

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The observed fast radio burst (FRB) population can be divided into one-off and repeating FRB sources. Either this division is a true dichotomy of the underlying sources, or selection effects and low activity prohibit us from observing repeat pulses from all constituents making up the FRB source population. We attempted to break this degeneracy through FRB population synthesis. With that aim in mind, we extended frbpoppy (which previously only handled one-off FRBs) to also simulate repeaters. We next modelled the Canadian Hydrogen Intensity Mapping Experiment FRB survey (CHIME/FRB). Using this implementation, we investigated the impact of luminosity functions on the observed dispersion measure (DM) and distance distributions of both repeating and one-off FRBs. We show that for a single, intrinsically repeating source population with a steep luminosity function, selection effects should shape the DM distributions of one-off and repeating FRB sources differently. This difference is not yet observed. We next show how the repeater fraction over time can help in determining the repetition rate of an intrinsic source population. We simulated this fraction for CHIME/FRB, and we show that a source population comprised solely of repeating FRBs can describe CHIME/FRB observations with the use of a flat luminosity function. From the outcome of these two methods, we thus conclude that all FRBs originate from a single and mostly uniform population of varying repeaters. Within this population, the luminosity function cannot be steep, and there must be minor differences in physical or behaviour parameters that correlate with the repetition rate.

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Section: Simulating a Repeater Populationmentioning

confidence: 99%

Section: Surveying Repeater Populationsmentioning

confidence: 99%

Section: Surveying Repeater Populationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Synthesising the repeating FRB population using frbpoppy

Gardenier

Connor

Leeuwen

et al. 2021

A&A

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Fast radio bursts at the dawn of the 2020s

Petroff

Hessels

Lorimer

2022

Astron Astrophys Rev

Self Cite

176

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Since the discovery of the first fast radio burst (FRB) in 2007, and their confirmation as an abundant extragalactic population in 2013, the study of these sources has expanded at an incredible rate. In our 2019 review on the subject, we presented a growing, but still mysterious, population of FRBs—60 unique sources, 2 repeating FRBs, and only 1 identified host galaxy. However, in only a few short years, new observations and discoveries have given us a wealth of information about these sources. The total FRB population now stands at over 600 published sources, 24 repeaters, and 19 host galaxies. Higher time resolution data, sustained monitoring, and precision localisations have given us insight into repeaters, host galaxies, burst morphology, source activity, progenitor models, and the use of FRBs as cosmological probes. The recent detection of a bright FRB-like burst from the Galactic magnetar SGR 1935 + 2154 provides an important link between FRBs and magnetars. There also continue to be surprising discoveries, like periodic modulation of activity from repeaters and the localisation of one FRB source to a relatively nearby globular cluster associated with the M81 galaxy. In this review, we summarise the exciting observational results from the past few years. We also highlight their impact on our understanding of the FRB population and proposed progenitor models. We build on the introduction to FRBs in our earlier review, update our readers on recent results, and discuss interesting avenues for exploration as the field enters a new regime where hundreds to thousands of new FRBs will be discovered and reported each year.

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The physics of fast radio bursts

Xiao

Wang

Dai

2021

Sci. China Phys. Mech. Astron.

145

107

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In 2007, a very bright radio pulse was identified in the archival data of the Parkes Telescope in Australia, marking the beginning of a new research branch in astrophysics. In 2013, this kind of millisecond bursts with extremely high brightness temperature takes a unified name, fast radio burst (FRB). Over the first few years, FRBs seemed very mysterious because the sample of known events was limited. With the improvement of instruments over the last five years, hundreds of new FRBs have been discovered. The field is now undergoing a revolution and understanding of FRB has rapidly increased as new observational data increasingly accumulate. In this review, we will summarize the basic physics of FRBs and discuss the current research progress in this area. We have tried to cover a wide range of FRB topics, including the observational property, propagation effect, population study, radiation mechanism, source model, and application in cosmology. A framework based on the latest observational facts is now under construction. In the near future, this exciting field is expected to make significant breakthroughs. fast radio burst, neutron star, cosmology

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Synthesising the intrinsic FRB population using frbpoppy

Cited by 39 publications

References 131 publications

Synthesising the repeating FRB population using frbpoppy

Synthesising the repeating FRB population using frbpoppy

Fast radio bursts at the dawn of the 2020s

The physics of fast radio bursts

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