Very Long Baseline Interferometry Experiment on Giant Radio Pulses of Crab Pulsar toward Fast Radio Burst Detection

2016 ◽  
Vol 128 (966) ◽  
pp. 084502 ◽  
Author(s):  
K. Takefuji ◽  
T. Terasawa ◽  
T. Kondo ◽  
R. Mikami ◽  
H. Takeuchi ◽  
...  
Keyword(s):  
Radio Burst ◽  
Very Long Baseline Interferometry ◽  
Crab Pulsar ◽  
Burst Detection ◽  
Long Baseline ◽  
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 A Machine Learning Classifier for Fast Radio Burst Detection at the VLBA

2016 ◽  
Vol 128 (966) ◽  
pp. 084503 ◽  
Author(s):  
Kiri L. Wagstaff ◽  
Benyang Tang ◽  
David R. Thompson ◽  
Shakeh Khudikyan ◽  
Jane Wyngaard ◽  
...  
Keyword(s):  
Machine Learning ◽  
Radio Burst ◽  
Burst Detection ◽  
Learning Classifier ◽  
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

Masers as probes of the gas dynamics close to forming high-mass stars

2017 ◽  
Vol 13 (S336) ◽  
pp. 201-206 ◽  
Author(s):  
Luca Moscadelli ◽  
Alberto Sanna ◽  
Ciriaco Goddi
Keyword(s):  
Gas Dynamics ◽  
Very Long Baseline Interferometry ◽  
High Mass ◽  
Powerful Technique ◽  
Long Baseline ◽  
Vlbi Observations ◽  
Massive Forming ◽  
Typical Distances ◽  
New Generation ◽  
Better Than

AbstractImaging the inner few 1000 AU around massive forming stars, at typical distances of several kpc, requires angular resolutions of better than 0″.1. Very Long Baseline Interferometry (VLBI) observations of interstellar molecular masers probe scales as small as a few AU, whereas (new-generation) centimeter and millimeter interferometers allow us to map scales of the order of a few 100 AU. Combining these informations all together, it presently provides the most powerful technique to trace the complex gas motions in the proto-stellar environment. In this work, we review a few compelling examples of this technique and summarize our findings.

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.

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