A model for the repeating FRB 121102 in the AGN scenario

Vieyro, Florencia Laura; Romero, Gustavo E.; Bosch‐Ramon, V.; Marcote, B.; Valle, Maŕıa Victoria del

doi:10.1051/0004-6361/201730556

Cited by 46 publications

(35 citation statements)

References 46 publications

(62 reference statements)

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“…Electrons from the beam that pass through the caviton are coherently scattered and emit strongly beamed Bremsstrahlung radiation in pulses, consistent with FRBs Vieyro et al, 2017). FRBs may be single or repeating, with the latter shown to be consistent with FRB 121102 (Vieyro et al, 2017). Radiation might be linearly polarized (as observed in FRB 121102 (Michilli et al, 2018;Gajjar et al, 2018), FRB 110523 (Masui et al, 2015), and FRB 150807 ) if there is a local magnetic field, however the 100% polarization degree of FRB 121102 would be difficult to account for in this scenario (Zhang, 2018).…”

Section: Agn Jet Interacting With Cavitonsmentioning

confidence: 73%

“…These regions, called cavitons, are filled by a strong electrostatic field. Electrons from the beam that pass through the caviton are coherently scattered and emit strongly beamed Bremsstrahlung radiation in pulses, consistent with FRBs Vieyro et al, 2017). FRBs may be single or repeating, with the latter shown to be consistent with FRB 121102 (Vieyro et al, 2017).…”

Section: Agn Jet Interacting With Cavitonsmentioning

confidence: 92%

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A living theory catalogue for fast radio bursts

et al. 2019

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At present, we have almost as many theories to explain Fast Radio Bursts as we have Fast Radio Bursts observed. This landscape will be changing rapidly with CHIME/FRB, recently commissioned in Canada, and HIRAX, under construction in South Africa. This is an opportune time to review existing theories and their observational consequences, allowing us to efficiently curtail viable astrophysical models as more data becomes available. In this article we provide a currently up to date catalogue of the numerous and varied theories proposed for Fast Radio Bursts so far. We also launched an online evolving repository for the use and benefit of the community to dynamically update our theoretical knowledge and discuss constraints and uses of Fast Radio Bursts.

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Section: Agn Jet Interacting With Cavitonsmentioning

confidence: 73%

Section: Agn Jet Interacting With Cavitonsmentioning

confidence: 92%

A living theory catalogue for fast radio bursts

et al. 2019

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“…Black holes interacting with their surrounding environment have also been proposed. Vieyro et al (2017) predict FRBs from the interaction between the jet of an accreting active galactic nucleus and the surrounding turbulent medium. Similarly, Das Gupta and Saini (2017) propose a model where a Kerr black hole produced from the collapse of a supramassive neutron star interacts with the surrounding environment to produce multiple repeating FRBs.…”

Section: Black Hole Progenitorsmentioning

confidence: 99%

Fast radio bursts

Petroff

Hessels

Lorimer

2019

Astron Astrophys Rev

593

471

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The discovery of radio pulsars over a half century ago was a seminal moment in astronomy. It demonstrated the existence of neutron stars, gave a powerful observational tool to study them, and has allowed us to probe strong gravity, dense matter, and the interstellar medium. More recently, pulsar surveys have led to the serendipitous discovery of fast radio bursts (FRBs). While FRBs appear similar to the individual pulses from pulsars, their large dispersive delays suggest that they originate from far outside the Milky Way and hence are many ordersof-magnitude more luminous. While most FRBs appear to be one-off, perhaps cataclysmic events, two sources are now known to repeat and thus clearly have a longer-lived central engine. Beyond understanding how they are created, there is also the prospect of using FRBs -as with pulsars -to probe the extremes of the Universe as well as the otherwise invisible intervening medium. Such studies will be aided by the high implied all-sky event rate: there is a detectable FRB roughly once every minute occurring somewhere on the sky. The fact that less than a hundred FRB sources have been discovered in the last decade is largely due to the small fields-of-view of current radio telescopes. A new generation of wide-field instruments is now coming online, however, and these will be capable of detecting multiple FRBs per day. We are thus on the brink of further breakthroughs in the short-duration radio transient phase space, which will be critical for differentiating between the many proposed theories for the origin of FRBs. In this review, we give an observational and theoretical introduction at a level that is accessible to astronomers entering the field.

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“…I regard these 11 sources as the persistent-source candidates, and they are listed at the top part of Table 1. However, if FRBs are related to AGN activity (e.g., Katz 2017;Vieyro et al 2017), then the number of candidates changes to 85. Figure 3 shows the SDSS images of the 11 candidate galaxies, with markers showing the radio source position and galaxy center.…”

Section: Search For Frb Persistent Sourcesmentioning

confidence: 99%

A Search for FRB 121102-like Persistent Radio-luminous Sources—Candidates and Implications for the FRB Rate and Searches

Ofek

2017

ApJ

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The localization of the repeating fast radio burst (FRB), FRB 121102, suggests that it is associated with a persistent radio-luminous compact source in the FRB host galaxy. Using the FIRST radio catalog, I present a search for luminous persistent sources in nearby galaxies, with radio luminosities > 10% of the FRB 121102 persistent source luminosity. The galaxy sample contains about 30% of the total galaxy g-band luminosity within < 108 Mpc, in a footprint of 10,600 deg 2 . After rejecting sources likely due to active galactic nuclei activity or background sources, I remain with 11 candidates that are presumably associated with galactic disks or star formation regions. At least some of these candidates are likely to be due to chance alignment. In addition, I find 85 sources within 1 ′′ of galactic nuclei. Assuming the radio persistent sources are not related to galactic nuclei and that they follow the galaxy g-band light, the 11 sources imply a 95% confidence upper limit on the space density of luminous persistent sources of < ∼ 5 × 10 −5 Mpc −3 , and that at any given time only a small fraction of galaxies host a radio luminous persistent source ( < ∼ 10 −3 L −1 * ). Assuming persistent sources life time of 100 yr, this implies a birth rate of < ∼ 5 × 10 −7 yr −1 Mpc −3 . Given the FRB volumetric rate, and assuming that all FRBs repeat and are associated with persistent radio sources, this sets a lower limit on the rate of FRB events per persistent source of > ∼ 0.8 yr −1 . I argue that these 11 candidates are good targets for FRB searches and I estimate the FRB event rate from these candidates.

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A model for the repeating FRB 121102 in the AGN scenario

Cited by 46 publications

References 46 publications

A living theory catalogue for fast radio bursts

A living theory catalogue for fast radio bursts

Fast radio bursts

A Search for FRB 121102-like Persistent Radio-luminous Sources—Candidates and Implications for the FRB Rate and Searches

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