Evans, E. E.

Keane, Margaret C.

doi:10.1016/b978-008044910-4.00609-x

Cited by 6 publications

(11 citation statements)

References 5 publications

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“…It should be noted that this rate is specific to the observing setup described in this paper as this setup is not fluence-complete down to 0.9 Jy ms, thus it is only directly comparable to Thornton et al (2013). The fluence-complete rate is 2.5 +3.2 −1.6 × 10 3 (95%) FRBs sky −1 day −1 above a fluence of ∼ 2 Jy ms (Keane & Petroff 2015).…”

Section: Resultsmentioning

confidence: 80%

“…Following that analysis a new processing pipeline known as Heimdall 1 was developed. Using GPU technology, this pipeline is considerably quicker than the previous processing while allowing a larger range of parameters to be searched (Keane & Petroff 2015). This pipeline was used to process the data presented here including, for completeness, the 316 deg 2 hrs in Thornton et al The data were searched for single pulses matching a number of criteria attributed to FRBs.…”

Section: Observations and Analysismentioning

confidence: 99%

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Five new fast radio bursts from the HTRU high-latitude survey at Parkes: first evidence for two-component bursts

Champion

Petroff

Krämer

et al. 2016

Monthly Notices of the Royal Astronomical Society: Letters

280

219

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The detection of five new fast radio bursts (FRBs) found in the High Time Resolution Universe high latitude survey is presented. The rate implied is 6 +4 −3 × 10 3 (95%) FRBs sky −1 day −1 above a fluence of between 0.13 and 5.9 Jy ms for FRBs between 0.128 and 262 ms in duration. One of these FRBs has a clear two-component profile, each component is similar to the known population of single component FRBs and are separated by 2.4(4) ms. All the FRB components appear to be unresolved following deconvolution with a scattering tail and accounting for intra-channel smearing. The two-component FRB also has the highest dispersion measure (1629 pc cm −3 ) of any FRB to-date. Many of the proposed models to explain FRBs use a single high energy event involving compact objects (such as neutron star mergers) and therefore cannot easily explain a two-component FRB. Models that are based on extreme versions of flaring, pulsing or orbital events however could produce multiple component profiles. The compatibility of these models and the FRB rate implied by these detections is discussed.

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Section: Resultsmentioning

confidence: 80%

Section: Observations and Analysismentioning

confidence: 99%

Five new fast radio bursts from the HTRU high-latitude survey at Parkes: first evidence for two-component bursts

Champion

Petroff

Krämer

et al. 2016

Monthly Notices of the Royal Astronomical Society: Letters

280

219

View full text Add to dashboard Cite

show abstract

“…To calibrate each cosmological model we compare the expected rate of FRBs from Eq. (1) to the observational constraint which yieldsṄ obs ∼ 10 3 − 10 5 FRBs sky −1 day −1 at z < 1 and S lim ≥ 1 Jy (e.g., Keane & Petroff 2015;Nicholl et al 2017;Law et al 2017). The results for normalization in each case are shown in the second Column of Table 1, in units ofṄ 4 sky −1 yr −1 , wherė N 4 ≡ 10 −4Ṅ obs andṄ obs is in units of sky −1 day −1 .…”

Section: Cosmological Population Of Frbsmentioning

confidence: 88%

Enhanced Rates of Fast Radio Bursts from Galaxy Clusters

Fialkov

Loeb

Lorimer

2018

ApJ

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Fast Radio Bursts (FRBs) have so far been detected serendipitously across the sky. We consider the possible enhancement in the FRB rate in the direction of galaxy clusters, and compare the predicted rate from a large sample of galaxy clusters to the expected cosmological mean rate. We show that clusters offer better prospects for a blind survey if the faint end of the FRB luminosity function is steep. We find that for a telescope with a beam of ∼ 1 deg 2 , the best targets would be either nearby clusters such as Virgo or clusters at intermediate cosmological distances of few hundred Mpc, which offer maximal number of galaxies per beam. We identify several galaxy clusters which have a significant excess FRB yield compared to the cosmic mean. The two most promising candidates are the Virgo cluster containing 1598 galaxies and located 16.5 Mpc away and S34 cluster which contains 3175 galaxies and is located at a distance of 486 Mpc.

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“…Only a few dozen FRB have been detected so far, and only for a handful of them it has been possible to measure the corresponding RM (Petroff et al 2016). However, the situation is expected to improve dramatically with ongoing (Petroff et al 2015;Keane et al 2017) and future (e.g. Trott et al 2013, see also ALERT survey with Aperitif) radio surveys, specifically designed to detect FRB, with an expected detection rate of a few FRB per day.…”

Section: Introductionmentioning

confidence: 99%

Probing the origin of extragalactic magnetic fields with Fast Radio Bursts

Vazza

Brüggen

Hinz

et al. 2018

Monthly Notices of the Royal Astronomical Society

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The joint analysis of the Dispersion and Faraday Rotation Measure from distant, polarised Fast Radio Bursts may be used to put constraints on the origin and distribution of extragalactic magnetic fields on cosmological scales. While the combination of Dispersion and Faraday Rotation Measure can in principle give the average magnetic fields along the line-of-sight, in practice this method must be used with care because it strongly depends on the assumed magnetisation model on large cosmological scales. Our simulations show that the observation of Rotation Measures with 1 − 10 rad/m 2 in ∼ 10 2 − 10 3 Fast Radio Bursts will likely be able to discriminate between extreme scenarios for the origin of cosmic magnetic fields, independent of the exact distribution of sources with redshift. This represent a strong case for incoming (e.g. ALERT, CHIME) and future (e.g. with the Square Kilometer Array) radio polarisation surveys of the sky.

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Evans, E. E.

Cited by 6 publications

References 5 publications

Five new fast radio bursts from the HTRU high-latitude survey at Parkes: first evidence for two-component bursts

Five new fast radio bursts from the HTRU high-latitude survey at Parkes: first evidence for two-component bursts

Enhanced Rates of Fast Radio Bursts from Galaxy Clusters

Probing the origin of extragalactic magnetic fields with Fast Radio Bursts

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