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Related papers: A possible wave-optical effect in lensed FRBs

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The circumgalactic medium (CGM) is poorly constrained at the sub-parsec scales relevant to turbulent energy dissipation and regulation of multi-phase structure. Fast radio bursts (FRBs) are sensitive to small-scale plasma density…

Astrophysics of Galaxies · Physics 2025-07-25 S. K. Ocker , M. Chen , S. P. Oh , P. Sharma

Fast radio bursts (FRBs) are astrophysical transients of currently unknown origin, and so far several events have been detected at extragalactic distances. The dispersion measure (DM) of the radio signal is a probe of the integrated…

Cosmology and Nongalactic Astrophysics · Physics 2021-01-13 Robert Reischke , Steffen Hagstotz , Robert Lilow

Microlenses with typical stellar masses (a few ${\rm M}_{\odot}$) have traditionally been disregarded as potential sources of gravitational lensing effects at LIGO/Virgo frequencies, since the time delays are often much smaller than the…

Cosmology and Nongalactic Astrophysics · Physics 2019-07-24 J. M. Diego , O. A. Hannuksela , P. L. Kelly , T. Broadhurst , K. Kim , T. G. F. Li , G. F. Smoot

With increasing sensitivities of the current ground-based gravitational-wave (GW) detectors, the prospects of detecting a strongly lensed GW signal are going to be high in the coming years. When such a signal passes through an intervening…

Cosmology and Nongalactic Astrophysics · Physics 2021-10-13 Anuj Mishra , Ashish Kumar Meena , Anupreeta More , Sukanta Bose , J S Bagla

It is noted that the duration of a fast radio burst (FRB), about $10^{-3}$ s, is a smaller fraction of the time delay between multiple images of a source gravitationally lensed by a galaxy or galaxy cluster than the human lifetime is to the…

Cosmology and Nongalactic Astrophysics · Physics 2018-10-24 Adi Zitrin , David Eichler

Fast radio bursts (FRBs) are recently discovered mysterious single pulses of radio emission, mostly coming from cosmological distances ($\sim 1$ Gpc). Their short duration, $\sim 1$ ms, and large luminosity evidence coherent emission. I…

High Energy Astrophysical Phenomena · Physics 2021-03-02 Yuri Lyubarsky

The polarization of fast radio bursts (FRBs), bright astronomical transients, contains crucial information about their environments. We report polarization measurements of five repeating FRBs, the abundant signals of which enable wide-band…

A moving mass makes a gravitational wake in the partially ionized interstellar medium, which acts as a lens for radio-frequency light. Consequently, plasma microlensing could complement gravitational microlensing in the search for invisible…

Astrophysics of Galaxies · Physics 2025-10-29 M. Sten Delos

We investigate the possibilities that pulsars act as the lens in gravitational microlensing events towards the galactic bulge or a spiral arm. Our estimation is based on expectant survey and observations of FAST (Five hundred meter Aperture…

High Energy Astrophysical Phenomena · Physics 2015-05-14 S. Dai , R. X. Xu , A. Esamdin

We propose a new extragalactic but non-cosmological explanation for fast radio bursts (FRBs) based on very young pulsars in supernova remnants. Within a few hundred years of a core-collapse supernova the ejecta is confined within $\sim$1…

High Energy Astrophysical Phenomena · Physics 2016-02-17 Liam Connor , Jonathan Sievers , Ue-Li Pen

Fast Radio Bursts (FRBs) are extra-galactic radio transients which exhibit a distance-dependent dispersion of their signal, and thus can be used as cosmological probes. In this article we, for the first time, apply a model-independent…

Cosmology and Nongalactic Astrophysics · Physics 2022-07-21 Stefan Heimersheim , Nina S. Sartorio , Anastasia Fialkov , Duncan R. Lorimer

We examine the effect of Galactic diffractive interstellar scintillation as a means of explaining the reported deficit of Fast Radio Burst (FRB) detections at low Galactic latitude. We model the unknown underlying FRB flux density…

High Energy Astrophysical Phenomena · Physics 2015-05-25 Jean-Pierre Macquart , Simon Johnston

Fast Radio Bursts (FRBs) are mysterious bursts in the millisecond timescale at radio wavelengths. Currently, there is little understanding about the classification of repeating FRBs, based on difference in physics, which is of great…

High Energy Astrophysical Phenomena · Physics 2023-07-12 Bjorn Jasper R. Raquel , Tetsuya Hashimoto , Tomotsugu Goto , Bo Han Chen , Yuri Uno , Tiger Yu-Yang Hsiao , Seong Jin Kim , Simon C. -C. Ho

If at cosmological distances, a small fraction of gamma-ray bursts should be multiply imaged by intervening galaxies or clusters, resulting in the appearance of two very similar bursts from the same location with a relative time delay of…

Astrophysics · Physics 2016-01-13 L. L. R. Williams , R. A. M. J. Wijers

We consider some general implications of bright gamma-ray counterparts to fast radio bursts (FRBs). We show that even if these manifest in only a fraction of FRBs, gamma-ray detections with current satellites (including Swift) can provide…

High Energy Astrophysical Phenomena · Physics 2017-02-09 Kohta Murase , Peter Meszaros , Derek B. Fox

When fast radio burst (FRB) waves propagate through the local (< 1 pc) environment of the FRB source, electrons in the plasma undergo large-amplitude oscillations. The finite-amplitude effects cause the effective plasma frequency and…

High Energy Astrophysical Phenomena · Physics 2020-08-10 Wenbin Lu , E. Sterl Phinney

We discuss identification of possible counterparts and persistent sources related to Fast Radio Bursts (FRBs) in the framework of the model of supergiant pulses from young neutron stars with large spin-down luminosities. In particular, we…

High Energy Astrophysical Phenomena · Physics 2016-07-27 S. B. Popov , M. S. Pshirkov

Recent observations of repeating fast radio bursts (FRBs) suggest that some FRBs reside in an environment consistent with that of binary neutron star (BNS) mergers. The bursting rate for repeaters could be very high and the emission site is…

High Energy Astrophysical Phenomena · Physics 2020-02-25 Bing Zhang

Owing to the advent of large area photometric surveys, the possibility to use broad band photometric data, instead of spectra, to measure the size of the broad line region of active galactic nuclei, has raised a large interest. We describe…

Astrophysics of Galaxies · Physics 2014-11-11 D. Sluse , M. Tewes

The field of fast radio bursts (FRBs) has entered the age of fine characterization as observational results from different radio telescopes become more and more abundant. The large FRB sample is suitable for a statistical study. There is an…

High Energy Astrophysical Phenomena · Physics 2023-12-25 Di Xiao , Zi-Gao Dai , Xue-Feng Wu