Fast radio burst

AccessScience ◽  
2019 ◽  
Keyword(s):  
Radio Burst ◽  
Fast Radio Burst

A fast radio burst in our own Galaxy

Nature ◽  
2020 ◽  
Vol 587 (7832) ◽  
pp. 43-44
Author(s):  
Amanda Weltman ◽  
Anthony Walters
Keyword(s):  
Radio Burst ◽  
Fast Radio Burst

Astronomers spot first fast radio burst in the Milky Way

Nature ◽  
2020 ◽  
Vol 582 (7812) ◽  
pp. 322-323 ◽  
Author(s):  
Alexandra Witze
Keyword(s):  
Radio Burst ◽  
Milky Way ◽  
Fast Radio Burst

Distributed Fast Radio Burst Detection: Algorithm and Application

2018 ◽  
Vol 2018 (16) ◽  
pp. 224-1-224-5
Author(s):  
Stephen Itschner ◽  
Kevin Bandura ◽  
Xin Li
Keyword(s):  
Radio Burst ◽  
Detection Algorithm ◽  
Burst Detection ◽  
Fast Radio Burst

scholarly journals Fast radio burst detection in the presence of coloured noise

2021 ◽  
Vol 503 (4) ◽  
pp. 5223-5231
Author(s):  
C F Zhang ◽  
J W Xu ◽  
Y P Men ◽  
X H Deng ◽  
Heng Xu ◽  
...  
Keyword(s):  
False Alarm ◽  
Radio Burst ◽  
Pulse Width ◽  
False Alarm Probability ◽  
False Positives ◽  
Parameter Distribution ◽  
Correlated Noise ◽  
Width Distribution ◽  
Fast Radio Burst ◽  
The Impact

ABSTRACT In this paper, we investigate the impact of correlated noise on fast radio burst (FRB) searching. We found that (1) the correlated noise significantly increases the false alarm probability; (2) the signal-to-noise ratios (S/N) of the false positives become higher; (3) the correlated noise also affects the pulse width distribution of false positives, and there will be more false positives with wider pulse width. We use 55-h observation for M82 galaxy carried out at Nanshan 26m radio telescope to demonstrate the application of the correlated noise modelling. The number of candidates and parameter distribution of the false positives can be reproduced with the modelling of correlated noise. We will also discuss a low S/N candidate detected in the observation, for which we demonstrate the method to evaluate the false alarm probability in the presence of correlated noise. Possible origins of the candidate are discussed, where two possible pictures, an M82-harboured giant pulse and a cosmological FRB, are both compatible with the observation.

scholarly journals Multiwavelength Observations of Fast Radio Bursts

Universe ◽  
2021 ◽  
Vol 7 (3) ◽  
pp. 76
Author(s):  
Luciano Nicastro ◽  
Cristiano Guidorzi ◽  
Eliana Palazzi ◽  
Luca Zampieri ◽  
Massimo Turatto ◽  
...  
Keyword(s):  
Radio Burst ◽  
High Energy ◽  
Medium Size ◽  
Radio Bursts ◽  
Starting Point ◽  
Key Points ◽  
Fast Radio Burst ◽  
Theoretical Results ◽  
Observational Strategy ◽  
Shed Light

The origin and phenomenology of the Fast Radio Burst (FRB) remains unknown despite more than a decade of efforts. Though several models have been proposed to explain the observed data, none is able to explain alone the variety of events so far recorded. The leading models consider magnetars as potential FRB sources. The recent detection of FRBs from the galactic magnetar SGR J1935+2154 seems to support them. Still, emission duration and energetic budget challenge all these models. Like for other classes of objects initially detected in a single band, it appeared clear that any solution to the FRB enigma could only come from a coordinated observational and theoretical effort in an as wide as possible energy band. In particular, the detection and localisation of optical/NIR or/and high-energy counterparts seemed an unavoidable starting point that could shed light on the FRB physics. Multiwavelength (MWL) search campaigns were conducted for several FRBs, in particular for repeaters. Here we summarize the observational and theoretical results and the perspectives in view of the several new sources accurately localised that will likely be identified by various radio facilities worldwide. We conclude that more dedicated MWL campaigns sensitive to the millisecond–minute timescale transients are needed to address the various aspects involved in the identification of FRB counterparts. Dedicated instrumentation could be one of the key points in this respect. In the optical/NIR band, fast photometry looks to be the only viable strategy. Additionally, small/medium size radiotelescopes co-pointing higher energies telescopes look a very interesting and cheap complementary observational strategy.

scholarly journals Fast radio burst dispersion measure distribution as a probe of helium reionization

2021 ◽  
Vol 103 (10) ◽  
Author(s):  
Mukul Bhattacharya ◽  
Pawan Kumar ◽  
Eric V. Linder
Keyword(s):  
Radio Burst ◽  
Dispersion Measure ◽  
Fast Radio Burst ◽  
Measure Distribution

scholarly journals The future of fast radio burst science

2018 ◽  
Vol 2 (11) ◽  
pp. 865-872 ◽  
Author(s):  
E. F. Keane
Keyword(s):  
Radio Burst ◽  
The Future ◽  
Fast Radio Burst

scholarly journals A fast radio burst with a low dispersion measure

2018 ◽  
Author(s):  
E Petroff ◽  
L C Oostrum ◽  
B W Stappers ◽  
M Bailes ◽  
E D Barr ◽  
...  
Keyword(s):  
Radio Burst ◽  
Dispersion Measure ◽  
Fast Radio Burst ◽  
Low Dispersion

scholarly journals One or several populations of fast radio burst sources?

2018 ◽  
Vol 2 (11) ◽  
pp. 839-841 ◽  
Author(s):  
Manisha Caleb ◽  
Laura G. Spitler ◽  
Ben W. Stappers
Keyword(s):  
Radio Burst ◽  
Fast Radio Burst
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