Multiwavelength Radio Observations of Two Repeating Fast Radio Burst Sources: FRB 121102 and FRB 180916.J0158+65

Pearlman, Aaron B.; Majid, Walid A.; Prince, Thomas A.; Nimmo, K.; Hessels, J. W. T.; Naudet, C. J.; Kocz, J.

doi:10.3847/2041-8213/abca31

Cited by 30 publications

(26 citation statements)

References 91 publications

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“…None of these bursts have counterparts in the 110-188 MHz band of LOFAR. Similarly, Pearlman et al (2020) used simultaneous CHIME/FRB and DSN 70 m dish observations to demonstrate a burst detection in the CHIME/FRB band but none at 2.3 or 8.4 GHz. Clearly, FRB 20180916B bursts have a low instantaneous bandwidth, as has been seen for FRB 20121102A (Gourdji et al 2019;Majid et al 2020) and beautifully demonstrated for FRB 20190711A (Kumar et al 2021).…”

Section: Spectrotemporal and Polarimetric Behaviormentioning

confidence: 99%

“…The detection of low-frequency bursts with no simultaneous high-frequency emission (Pearlman et al 2020) strongly challenges models in which the 16.3 day observed periodicity is the result of absorption by the companion wind . Rather, our LOFAR HBA detections and the lack of any observed DM variations, with ΔDM  0.1 pc cm −3 throughout the active window (PR3), suggest that we have a relatively clean line of sight to the burst source itself.…”

Section: A Self-consistent Model For Frb 20180916bmentioning

confidence: 99%

“…To date, FRBs have been detected from radio frequencies of 300 MHz (Chawla et al 2020;Pilia et al 2020;Parent et al 2020) up to 8 GHz (Gajjar et al 2018). Thus far, FRB 20180916B has only been detected up to 1.7 GHz (Marcote et al 2020), and Pearlman et al (2020) demonstrated that it is either less active or fainter at higher frequencies (2 GHz). In simultaneous Low-Frequency Array (LOFAR) and Green Bank Telescope (GBT) observations, Chawla et al (2020) demonstrated burst detections at 300-400 MHz, while no emission is seen contemporaneously at 110-188 MHz.…”

Section: Introductionmentioning

confidence: 99%

“…In simultaneous Low-Frequency Array (LOFAR) and Green Bank Telescope (GBT) observations, Chawla et al (2020) demonstrated burst detections at 300-400 MHz, while no emission is seen contemporaneously at 110-188 MHz. Likewise, Pearlman et al (2020) used Deep Space Network (DSN) 70 m dish observations to demonstrate that no emission is detected at 2.3 or 8.4 GHz at the time of a bright burst seen by CHIME/FRB from 600 to 800 MHz. Such narrowband emission appears to be a characteristic of repeating FRBs (e.g., Kumar et al 2021) and has also been well demonstrated for FRB 20121102A (Gourdji et al 2019;Majid et al 2020).…”

Section: Introductionmentioning

confidence: 99%

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LOFAR Detection of 110–188 MHz Emission and Frequency-dependent Activity from FRB 20180916B

Pleunis

Michilli

Bassa

et al. 2021

ApJL

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The object FRB 20180916B is a well-studied repeating fast radio burst source. Its proximity (∼150 Mpc), along with detailed studies of the bursts, has revealed many clues about its nature, including a 16.3 day periodicity in its activity. Here we report on the detection of 18 bursts using LOFAR at 110-188 MHz, by far the lowest-frequency detections of any FRB to date. Some bursts are seen down to the lowest observed frequency of 110 MHz, suggesting that their spectra extend even lower. These observations provide an order-of-magnitude stronger constraint on the optical depth due to free-free absorption in the source's local environment. The absence of circular polarization and nearly flat polarization angle curves are consistent with burst properties seen at 300-1700 MHz. Compared with higher frequencies, the larger burst widths (∼40-160 ms at 150 MHz) and lower linear polarization fractions are likely due to scattering. We find ∼2-3 rad m −2 variations in the Faraday rotation measure that may be correlated with the activity cycle of the source. We compare the LOFAR burst arrival times to those of 38 previously published and 22 newly detected bursts from the uGMRT (200-450 MHz) and CHIME/ FRB (400-800 MHz). Simultaneous observations show five CHIME/FRB bursts when no emission is detected by LOFAR. We find that the burst activity is systematically delayed toward lower frequencies by about 3 days from 600 to 150 MHz. We discuss these results in the context of a model in which FRB 20180916B is an interacting binary system featuring a neutron star and high-mass stellar companion.

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Section: Spectrotemporal and Polarimetric Behaviormentioning

confidence: 99%

Section: A Self-consistent Model For Frb 20180916bmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

LOFAR Detection of 110–188 MHz Emission and Frequency-dependent Activity from FRB 20180916B

Pleunis

Michilli

Bassa

et al. 2021

ApJL

Self Cite

159

146

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“…Multi-frequency follow-up studies are critical for characterizing FRB sources and emission models. One such approach is to carry out simultaneous observations of FRBs across wide bandwidths (Scholz et al 2017;Majid et al 2020;Pearlman et al 2020;Scholz et al 2020) that are more robust against temporal evolution of scintillation and scattering, as well as arXiv:2105.10987v1 [astro-ph.HE] 23 May 2021 intrinsic short term variability in the emission spectrum of individual bursts. Another approach is to probe the shorter timescales of the bursts to place limits on the instantaneous size of the emitting regions, similar to the studies of the Crab giant pulses carried out with few nanosecond time resolution (Hankins et al 2003).…”

Section: Introductionmentioning

confidence: 99%

A Bright Fast Radio Burst from FRB 20200120E with Sub-100 Nanosecond Structure

Majid

Pearlman

Prince

et al. 2021

ApJL

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We present the detection of a bright radio burst at radio frequencies between 2.2-2.3 GHz with the NASA Deep Space Network (DSN) 70 m dish (DSS-63) in Madrid, Spain from FRB 20200120E. This repeating fast radio burst (FRB) was recently discovered by the Canadian Hydrogen Intensity Mapping Experiment Fast Radio Burst (CHIME/FRB) instrument and reported to be associated with the M81 spiral galaxy at a distance of 3.6 Mpc. The high time resolution capabilities of the recording system used in this observation, together with the small amount of scattering and intrinsic brightness of the burst, allow us to explore the burst structure in unprecedented detail. We find that the burst has a duration of roughly 30 µs and is comprised of several narrow components with typical separations of 2-3 µs. The narrowest component has a width of 100 ns, which corresponds to a light travel time size as small as 30 m, the smallest associated with an FRB to date. The peak flux density of the narrowest burst component is 270 Jy. We estimate the total spectral luminosity of the narrowest component of the burst to be 4 × 10 30 erg s -1 Hz -1 , which is a factor of ∼500 above the luminosities of the so-called "nanoshots" associated with giant pulses from the Crab pulsar. This spectral luminosity is also higher than that of the radio bursts detected from the Galactic magnetar SGR 1935+2154 during its outburst in April 2020, but it falls on the low-end of the currently measured luminosity distribution of extragalatic FRBs. These results provide further support for the presence of a continuum of FRB burst luminosities. Subject headings: fast radio burst: individual (FRB 20200120E)

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Fast radio bursts at the dawn of the 2020s

Petroff

Hessels

Lorimer

2022

Astron Astrophys Rev

181

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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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Multiwavelength Radio Observations of Two Repeating Fast Radio Burst Sources: FRB 121102 and FRB 180916.J0158+65

Cited by 30 publications

References 91 publications

LOFAR Detection of 110–188 MHz Emission and Frequency-dependent Activity from FRB 20180916B

LOFAR Detection of 110–188 MHz Emission and Frequency-dependent Activity from FRB 20180916B

A Bright Fast Radio Burst from FRB 20200120E with Sub-100 Nanosecond Structure

Fast radio bursts at the dawn of the 2020s

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