The Detection of an Extremely Bright Fast Radio Burst in a Phased Array Feed Survey

Bannister, K. W.; Shannon, R. M.; Macquart, Jean–Pierre; Flynn, Chris; Edwards, P. G.; O’Neill, M.; Osłowski, S.; Bailes, M.; Zackay, Barak; Clarke, Nathan; D'Addario, Larry R.; Dodson, Richard; Hall, Peter; Jameson, A.; Jones, D.; Navarro, Robert; Trinh, J.; Allison, J. R.; Anderson, Craig S.; Bell, M. E.; Chippendale, A. P.; Collier, J. D.; Heald, G.; Heywood, Ian; Hotan, A. W.; Lee-Waddell, K.; Madrid, Juan P.; Marvil, J.; McConnell, D.; Popping, Attila; Voronkov, Maxim; Whiting, M. T.; Allen, G.; Bock, Douglas C.-J.; Brodrick, David; Cooray, F. R.; DeBoer, David R.; Diamond, P. J.; Ekers, R. D.; Gough, R. G.; Hampson, G.A.; Harvey-Smith, Lisa; Hay, Stuart G.; Hayman, Douglas B.; Jackson, C. A.; Johnston, S.; Koribalski, B. S.; McClure-Griffiths, N. M.; Mirtschin, P.; Ng, A.; Norris, R. P.; Pearce, Sarah E.; Phillips, Chris; Roxby, Daniel N.; Troup, E. R.; Westmeier, T.

doi:10.3847/2041-8213/aa71ff

Cited by 164 publications

(131 citation statements)

References 33 publications

(50 reference statements)

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“…By using the detected signal to noise ratios and the beam positions, it is possible to get a localization precision ∆θ ≈ θ FWHP /S/N ≈ 10 arcmin (90%), where θ FWHP is the beam width at half power (1 • for the observations here) and S/N is the burst signal to noise ratio in the strongest detection. This algorithm was employed on previous ASKAP detections and has been described in detail (16). FRB 180924 was detected strongly (S/N>7) in two beams and had moderate detections (S/N>4) in two additional beams.…”

Section: S151 Comparison Between Incoherent and Interferometric Locmentioning

confidence: 99%

“…Observations of the field were taken with the 64-meter Parkes radio telescope, on 2018-10-02 for 8.8 hr and on 2018-10-16 for 2 hr. The telescope was pointed at the position derived using the flys-eye localization method presented previously (16) as the sub-arcsecond position had not been determined at the time of the observations. As discussed in Section S1.5.1, this position (and hence the telescope pointing) was offset from the true FRB position by approximately 30 arcsec, much smaller than the nominal 10 arcmin uncertainty quoted for the fly's-eye method, and much smaller than the Parkes beam.…”

Section: S111 Searches For Repeated Pulsesmentioning

confidence: 99%

“…The data are saved for offline interferometric analysis only when the pipeline identifies a candidate. For the searches reported here the triggering required pulses with widths less than 9 ms and S/N > 10.Previous searches with ASKAP used antennas pointed in different directions to maximize sky coverage (10,16). In contrast, our observations used antennas all pointed in the same direction, enabling the array to act as an interferometer capable of sub-arcsecond localization with a 30 deg 2 field of view.…”

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confidence: 99%

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A single fast radio burst localized to a massive galaxy at cosmological distance

Bannister

Deller

Phillips

et al. 2019

Science

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392

350

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Fast Radio Bursts (FRBs) are brief radio emissions from distant astronomical sources. Some are known to repeat, but most are single bursts. Non-repeating FRB observations have had insufficient positional accuracy to localize them to an individual host galaxy. We report the interferometric localization of the single pulse FRB 180924 to a position 4 kpc from the center of a luminous galaxy at redshift 0.3214. The burst has not been observed to repeat. The properties of the burst and its host are markedly different from the only other accurately localized FRB source. The integrated electron column density along the line of sight closely matches models of the intergalactic medium, indicating that some FRBs are clean probes of the baryonic component of the cosmic web.Cosmological observations have shown that baryons comprise 4% of the energy density of the Universe, of which only about 10% is in cold gas and stars (1), with the remainder residing in a diffuse plasma surrounding and in between galaxies and galaxy clusters. The location and density of this material has been challenging to characterize, and up to 50% of it remains unaccounted (2).Fast radio bursts (FRBs; ref.(3)) are bright bursts of radio waves with millisecond duration. They can potentially be used to detect, study, and map this medium, as bursts of emission are dispersed and scattered by their 1 arXiv:1906.11476v1 [astro-ph.HE] 27 Jun 2019 dual-polarization beams on the sky using digital beamforming, producing a total field-of-view of ∼ 30 deg 2 . For burst detection, the beamformers produces channelized autocorrelation spectra for both linear polarizations of all beams, with an integration time of 864 µs and channel bandwidth of 1 MHz in these observations. We used 336 channels centered at 1320 MHz. A real-time detection pipeline incoherently adds the spectra from all available antennas (24 antennas in these observations) and polarization channels, then searches (16) the result for dispersed pulses (17).Burst localization is completed with a second data product that utilizes both the amplitude and phase information of the burst radiation. The beamformers store samples of the complex electric field for all beams and both polarizations in a ring buffer of 3.1 s duration, with the oldest data being continuously overwritten by new data. The data are saved for offline interferometric analysis only when the pipeline identifies a candidate. For the searches reported here the triggering required pulses with widths less than 9 ms and S/N > 10.Previous searches with ASKAP used antennas pointed in different directions to maximize sky coverage (10,16). In contrast, our observations used antennas all pointed in the same direction, enabling the array to act as an interferometer capable of sub-arcsecond localization with a 30 deg 2 field of view. We targeted high Galactic latitude fields (Galactic latitude |b| ∼ 50 • ), that had been observed previously (10, 16), and Southern circumpolar fields. The high-latitude fields were observed regularly through 2017 and earl...

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Section: S151 Comparison Between Incoherent and Interferometric Locmentioning

confidence: 99%

Section: S111 Searches For Repeated Pulsesmentioning

confidence: 99%

mentioning

confidence: 99%

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A single fast radio burst localized to a massive galaxy at cosmological distance

Bannister

Deller

Phillips

et al. 2019

Science

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392

350

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“…Since the first FRB discovered in 2007 in archival data from the Parkes Radio Telescope (Lorimer et al 2007), more than 20 FRBs have been detected by a total of five observatories (Spitler et al 2014;Masui et al 2015;Bannister et al 2017;Caleb et al 2017). This rules out the hypothesis of an instrumental or terrestrial origin of these phenomena.…”

Section: Introductionmentioning

confidence: 99%

A Search for Neutrino Emission from Fast Radio Bursts with Six Years of IceCube Data

Aartsen

Ackermann²,

Adams

et al. 2018

ApJ

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We present a search for coincidence between IceCube TeV neutrinos and fast radio bursts (FRBs). During the search period from 2010 May 31 to 2016 May 12, a total of 29 FRBs with 13 unique locations have been detected in the whole sky. An unbinned maximum likelihood method was used to search for spatial and temporal coincidence between neutrinos and FRBs in expanding time windows, in both the northern and southern hemispheres. No significant correlation was found in six years of IceCube data. Therefore, we set upper limits on neutrino fluence emitted by FRBs as a function of time window duration. We set the most stringent limit obtained to date on neutrino fluence from FRBs with an E −2 energy spectrum assumed, which is 0.0021 GeV cm −2 per burst for emission timescales up to ∼10 2 s from the northern hemisphere stacking search.

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“…It is firmly established that at least a few milli-second duration, very bright, radio signals that have been detected between about 400 MHz and 7 GHz (known as Fast Radio Bursts or FRBs) are coming from a distance of about a Gpc or more, eg. Lorimer et al 2007; Thornton et al 2013;Spitler et al 2014;Petroff et al 2016;Bannister et al 2017;Law et al 2017;Chatterjee et al 2017;Marcote et al 2017;Tendulkar et al 2017;Gajjar et al 2018;Michilli et al 2018;Farah et al 2018;Shannon et al 2018;Oslowski et al 2019;Kocz et al 2019;Bannister et al 2019;CHIME Collaboration 2019a and2019b;Ravi 2019aRavi , 2019bRavi et al 2019. Many mechanisms have been suggested for the generation of high luminosity coherent radio waves from Fast Radio Bursts (FRBs), eg. Katz (2014Katz ( , 2016, Murase et al (2016;, Kumar et al (2017), Metzger et al (2017), Zhang (2017), Beloborodov (2017), Cordes (2017), Ghisellini & Locatelli (2018), Lu & Kumar (2018), Metzger et al (2019), Thompson (2019), Wang & Lai (2019), ; for a recent review see Katz (2018).…”

Section: Introductionmentioning

confidence: 99%

FRB coherent emission from decay of Alfvén waves

Kumar

Bošnjak

2020

Monthly Notices of the Royal Astronomical Society

104

107

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We present a model for FRBs where a large amplitude Alfvén wave packet is launched by a disturbance near the surface of a magnetar, and a substantial fraction of the wave energy is converted to coherent radio waves at a distance of a few tens of neutron star radii. The wave amplitude at the magnetar surface should be about 10 11 G in order to produce a FRB of isotropic luminosity 10 44 erg s −1 . An electric current along the static magnetic field is required by Alfvén waves with non-zero component of transverse wave-vector. The current is supplied by counter-streaming electron-positron pairs, which have to move at nearly the speed of light at larger radii as the plasma density decreases with distance from the magnetar surface. The counter-streaming pairs are subject to two-stream instability which leads to formation of particle bunches of size of order c/ω p ; where ω p is plasma frequency. A strong electric field develops along the static magnetic field when the wave packet arrives at a radius where electron-positron density is insufficient to supply the current required by the wave. The electric field accelerates particle bunches along the curved magnetic field lines, and that produces the coherent FRB radiation. We provide a number of predictions of this model.

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The Detection of an Extremely Bright Fast Radio Burst in a Phased Array Feed Survey

Cited by 164 publications

References 33 publications

A single fast radio burst localized to a massive galaxy at cosmological distance

A single fast radio burst localized to a massive galaxy at cosmological distance

A Search for Neutrino Emission from Fast Radio Bursts with Six Years of IceCube Data

FRB coherent emission from decay of Alfvén waves

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