First Prompt Optical Observations of Nearest Fast Radio Burst new New Astromomical Method

Abstract With the discovery of gamma ray bursts1,2, it became clear that our Universe flickers with superfast catastrophic events, sometimes lasting for a thousandths of a second. These ultra-fast transients - the peculiar one-day butterflies of the Universe - shine so brightly that they are noticed even on the other end of the Universe and, moreover, by very small telescopes. But in the radio range, the sky remained silent until the beginning of the 21st century. Only in 2007, radio astronomers analyzing archival observations of the Parkes Radio Telescope first encountered fast transients 3,4 . About a hundred such sources have already been discovered. We report the first optical observation of the closest radio burster FRB 180916.J0158+655-8 synchronously with a radio burst. In total, we obtained about 155,093 images at MASTER Global Robotic Net9*. In the course of our observations, we found a new method for detecting objects deep below the noise level. In addition, using the new method, we found the excess of photons in the FRB direction at a level of 23 m associated with the emission of the host galaxy.

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A Population of Fast Radio Bursts at Cosmological Distances

Science ◽

10.1126/science.1236789 ◽

2013 ◽

Vol 341 (6141) ◽

pp. 53-56 ◽

Cited By ~ 578

Author(s):

D. Thornton ◽

B. Stappers ◽

M. Bailes ◽

B. Barsdell ◽

S. Bates ◽

...

Keyword(s):

Gamma Ray ◽

Galactic Plane ◽

Host Galaxy ◽

Source Population ◽

Radio Bursts ◽

Host Galaxies ◽

Fast Transients ◽

Radio Transients ◽

The Universe

Searches for transient astrophysical sources often reveal unexpected classes of objects that are useful physical laboratories. In a recent survey for pulsars and fast transients, we have uncovered four millisecond-duration radio transients all more than 40° from the Galactic plane. The bursts’ properties indicate that they are of celestial rather than terrestrial origin. Host galaxy and intergalactic medium models suggest that they have cosmological redshifts of 0.5 to 1 and distances of up to 3 gigaparsecs. No temporally coincident x- or gamma-ray signature was identified in association with the bursts. Characterization of the source population and identification of host galaxies offers an opportunity to determine the baryonic content of the universe.

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The host galaxy of a fast radio burst

Nature ◽

10.1038/nature17140 ◽

2016 ◽

Vol 530 (7591) ◽

pp. 453-456 ◽

Cited By ~ 174

Author(s):

E. F. Keane ◽

S. Johnston ◽

S. Bhandari ◽

E. Barr ◽

N. D. R. Bhat ◽

...

Keyword(s):

Radio Burst ◽

Host Galaxy ◽

Fast Radio Burst

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GRAVITATIONAL LENSING BOUND ON THE AVERAGE REDSHIFT OF GAMMA RAY BURSTS IN MODELS WITH EVOLVING LENSES

International Journal of Modern Physics D ◽

10.1142/s0218271899000353 ◽

1999 ◽

Vol 08 (04) ◽

pp. 507-517 ◽

Cited By ~ 2

Author(s):

DEEPAK JAIN ◽

N. PANCHAPAKESAN ◽

S. MAHAJAN ◽

V. B. BHATIA

Keyword(s):

Gravitational Lensing ◽

Gamma Ray ◽

Cosmological Parameters ◽

Evolutionary Model ◽

Gamma Ray Bursts ◽

The Other ◽

Upper Limit ◽

Evolving Model ◽

Evolving Models ◽

The Universe

Identification of gravitationally lensed Gamma Ray Bursts (GRBs) in the BATSE 4B catalog can be used to constrain the average redshift <z> of the GRBs. In this paper we investigate the effect of evolving lenses on the <z> of GRBs in different cosmological models of the universe. The cosmological parameters Ω and Λ have an effect on the <z> of GRBs. The other factor which can change the <z> is the evolution of galaxies. We consider three evolutionary model of galaxies. In particular, we find that the upper limit on <z> of GRBs is higher in evolving model of galaxies as compared to non-evolving models of galaxies.

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HαIntensity Map of the Repeating Fast Radio Burst FRB 121102 Host Galaxy from Subaru/Kyoto 3DII AO-assisted Optical Integral-field Spectroscopy

The Astrophysical Journal ◽

10.3847/1538-4357/aa7b2d ◽

2017 ◽

Vol 844 (2) ◽

pp. 95 ◽

Cited By ~ 17

Author(s):

Mitsuru Kokubo ◽

Kazuma Mitsuda ◽

Hajime Sugai ◽

Shinobu Ozaki ◽

Yosuke Minowa ◽

...

Keyword(s):

Radio Burst ◽

Host Galaxy ◽

Integral Field Spectroscopy ◽

Field Spectroscopy ◽

Fast Radio Burst ◽

Integral Field

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A Decade and a Half of Fast Radio Burst Observations

Universe ◽

10.3390/universe7110453 ◽

2021 ◽

Vol 7 (11) ◽

pp. 453

Author(s):

Manisha Caleb ◽

Evan Keane

Keyword(s):

Magnetic Field ◽

Radio Burst ◽

Line Of Sight ◽

Radio Bursts ◽

Radio Observations ◽

The Past ◽

Interstellar Media ◽

Propagation Effects ◽

Fast Radio Burst ◽

The Universe

Fast radio bursts (FRBs) have a story which has been told and retold many times over the past few years as they have sparked excitement and controversy since their pioneering discovery in 2007. The FRB class encompasses a number of microsecond- to millisecond-duration pulses occurring at Galactic to cosmological distances with energies spanning about 8 orders of magnitude. While most FRBs have been observed as singular events, a small fraction of them have been observed to repeat over various timescales leading to an apparent dichotomy in the population. ∼50 unique progenitor theories have been proposed, but no consensus has emerged for their origin(s). However, with the discovery of an FRB-like pulse from the Galactic magnetar SGR J1935+2154, magnetar engine models are the current leading theory. Overall, FRB pulses exhibit unique characteristics allowing us to probe line-of-sight magnetic field strengths, inhomogeneities in the intergalactic/interstellar media, and plasma turbulence through an assortment of extragalactic and cosmological propagation effects. Consequently, they are formidable tools to study the Universe. This review follows the progress of the field between 2007 and 2020 and presents the science highlights of the radio observations.

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Hunting the gamma-ray emission from Fast Radio Burst with Fermi-LAT

10.22323/1.395.0624 ◽

2021 ◽

Author(s):

Giacomo Principe ◽

Nicola Omodei ◽

Francesco Longo ◽

Leonardo Di Venere ◽

Niccolò Di Lalla

Keyword(s):

Radio Burst ◽

Gamma Ray ◽

Gamma Ray Emission ◽

Fast Radio Burst

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A fast radio burst source at a complex magnetised site in a barred galaxy

10.21203/rs.3.rs-1059119/v1 ◽

2021 ◽

Author(s):

K.J. Lee ◽

Heng Xu ◽

J.R. Niu ◽

P. Chen ◽

Weiwei Zhu ◽

...

Keyword(s):

Optical Observations ◽

Host Galaxy ◽

Radio Bursts ◽

Radio Waves ◽

Galactocentric Distance ◽

Burst Source ◽

Radiation Mechanism ◽

Circular Polarisation ◽

Rotation Measure ◽

Fast Radio Burst

Abstract Fast radio bursts (FRBs) are highly dispersed radio bursts prevailing in the universe. The recent detection of FRB~200428 from a Galactic magnetar suggested that at least some FRBs originate from magnetars, but it is unclear whether the majority of cosmological FRBs, especially the actively repeating ones, are produced from the magnetar channel. Here we report the detection of 1863 polarised bursts from the repeating source FRB~20201124A during a dedicated radio observational campaign of Five-hundred-meter Aperture Spherical radio Telescope (FAST). The large sample of radio bursts detected in 88 hr over 54 days indicate a significant, irregular, short-time variation of the Faraday rotation measure (RM) of the source during the first 36 days, followed by a constant RM during the later 18 days. Significant circular polarisation up to 75\% was observed in a good fraction of bursts. Evidence suggests that some low-level circular polarisation originates from the conversion from linear polarisation during the propagation of the radio waves, but an intrinsic radiation mechanism is required to produce the higher degree of circular polarisation. All of these features provide evidence for a more complicated, dynamically evolving, magnetised immediate environment around this FRB source. Its host galaxy was previously known. Our optical observations reveal that it is a Milky-Way-sized, metal-rich, barred-spiral galaxy at redshift z=0.09795+-0.00003, with the FRB residing in a low stellar density, interarm region at an intermediate galactocentric distance, an environment not directly expected for a young magnetar formed during an extreme explosion of a massive star.

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A Distant Fast Radio Burst Associated with Its Host Galaxy by the Very Large Array

The Astrophysical Journal ◽

10.3847/1538-4357/aba4ac ◽

2020 ◽

Vol 899 (2) ◽

pp. 161 ◽

Cited By ~ 2

Author(s):

Casey J. Law ◽

Bryan J. Butler ◽

J. Xavier Prochaska ◽

Barak Zackay ◽

Sarah Burke-Spolaor ◽

...

Keyword(s):

Radio Burst ◽

Host Galaxy ◽

Large Array ◽

Very Large Array ◽

Fast Radio Burst

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The performance and calibration of the CRAFT fly’s eye fast radio burst survey

Publications of the Astronomical Society of Australia ◽

10.1017/pasa.2019.1 ◽

2019 ◽

Vol 36 ◽

Cited By ~ 11

Author(s):

C. W. James ◽

K. W. Bannister ◽

J.-P. Macquart ◽

R. D. Ekers ◽

S. Oslowski ◽

...

Keyword(s):

Radio Burst ◽

Phased Array ◽

Radio Frequency Interference ◽

Radio Bursts ◽

System Noise ◽

Fast Transients ◽

Fast Radio Burst ◽

Power Law Index ◽

Phased Array Feeds ◽

Best Fit

AbstractThe Commensal Real-time Australian Square Kilometre Array Pathfinder Fast Transients survey is the first extensive astronomical survey using phased array feeds. Since January 2017, it has been searching for fast radio bursts in fly’s eye mode. Here, we present a calculation of the sensitivity and total exposure of the survey that detected the first 20 of these bursts, using the pulsars B1641-45 and B0833-45 as calibrators. The beamshape, antenna-dependent system noise, and the effects of radio-frequency interference and fluctuations during commissioning are quantified. Effective survey exposures and sensitivities are calculated as a function of the source counts distribution. Statistical ‘stat’ and systematics ‘sys’ effects are treated separately. The implied fast radio burst rate is significantly lower than the 37 sky−1 day−1 calculated using nominal exposures and sensitivities for this same sample by Shannon et al. (2018). At the Euclidean (best-fit) power-law index of −1.5 (−2.2), the rate is $12.7_{-2.2}^{+3.3}$ (sys) ± 3.6 (stat) sky−1 day−1 ( $20.7_{-1.7}^{+2.1}$ (sys) ± 2.8 (stat) sky−1 day−1) above a threshold of 56.6 ± 6.6(sys) Jy ms (40.4 ± 1.2(sys) Jy ms). This strongly suggests that these calculations be performed for other FRB-hunting experiments, allowing meaningful comparisons to be made between them.

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