Fast Radio Burst 121102 Pulse Detection and Periodicity: A Machine Learning Approach

@article{Zhang2018FastRB,
  title={Fast Radio Burst 121102 Pulse Detection and Periodicity: A Machine Learning Approach},
  author={Yunfan Gerry Zhang and Vishal Gajjar and Griffin S. Foster and Andrew P. V. Siemion and James M. Cordes and Casey J. Law and Yu Wang},
  journal={The Astrophysical Journal},
  year={2018}
}
We report the detection of 72 new pulses from the repeating fast radio burst FRB 121102 in Breakthrough Listen C-band (4-8 GHz) observations at the Green Bank Telescope. The new pulses were found with a convolutional neural network in data taken on August 26, 2017, where 21 bursts have been previously detected. Our technique combines neural network detection with dedispersion verification. For the current application we demonstrate its advantage over a traditional brute-force dedis- persion… Expand
Detecting pulsars with neural networks: a proof of concept
Pulsar searches are computationally demanding efforts to discover dispersed periodic signals in timeand frequency-resolved data from radio telescopes. The complexity and computational expense ofExpand
Single-pulse Detection Algorithms for Real-time Fast Radio Burst Searches Using GPUs
TLDR
This work quantified the signal loss introduced by single pulse detection algorithms which use boxcar filters and based on these results, they have designed two distinct "lossy" algorithms, which can process SKA-MID-like data 266x faster than real-time on a NVIDIA P100 GPU and 500x faster on aNVIDIA Titan V GPU with a mean signal power loss of 7%. Expand
A Sample of Low-energy Bursts from FRB 121102
We present 41 bursts from the first repeating fast radio burst discovered (FRB 121102). A deep search has allowed us to probe unprecedentedly low burst energies during two consecutive observationsExpand
Faint Repetitions from a Bright Fast Radio Burst Source
We report the detection of repeat bursts from FRB 171019, one of the brightest fast radio bursts (FRBs) detected in the Australian Square Kilometre Array Pathfinder (ASKAP) fly's eye survey. TwoExpand
Statistical properties of the repeating fast radio burst source FRB 121102
Currently, FRB 121102 is the only fast radio burst source that was observed to give out bursts repeatedly. It shows a high repeating rate, with more than one hundred bursts being spotted, but with noExpand
FRB 121102 Bursts Show Complex Time–Frequency Structure
FRB 121102 is the only known repeating fast radio burst source. Here we analyze a wide-frequency-range (1–8 GHz) sample of high signal-to-noise, coherently dedispersed bursts detected using theExpand
Five new real-time detections of fast radio bursts with UTMOST
We detail a new fast radio burst (FRB) survey with the Molonglo Radio Telescope, in which six FRBs were detected between 2017 June and 2018 December. By using a real-time FRB detection system, weExpand
A fast radio burst with frequency-dependent polarization detected during Breakthrough Listen observations
Here, we report on the detection and verification of fast radio burst FRB 180301, which occurred on utc 2018 March 1 during the Breakthrough Listen observations with the Parkes telescope.Expand
A bimodal burst energy distribution of a repeating fast radio burst source.
  • D. Li, P Wang, +29 authors Y. Zhu
  • Medicine, Physics
  • Nature
  • 2021
TLDR
The detection of 1,652 independent bursts with a peak burst rate of 122 h-1, in 59.5 hours spanning 47 days is reported, and a peak in the isotropic equivalent energy distribution is found to be approximately 4.8 × 1037 erg at 1.25 GHz, below which the detection of bursts is suppressed. Expand
GREENBURST: A commensal Fast Radio Burst search back-end for the Green Bank Telescope
TLDR
The high sensitivity of GREENBURST means that it will also be able to probe the slope of the FRB fluence distribution, which is currently uncertain in this observing band. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 73 REFERENCES
A Machine Learning Classifier for Fast Radio Burst Detection at the VLBA
TLDR
A machine learning classifier is trained and deployed that marks each candidate detection as a pulse from a known pulsar, an artifact due to radio frequency interference, or a potential new discovery within data collected by the V-FASTR fast transient system. Expand
Applying Deep Learning to Fast Radio Burst Classification
TLDR
This work constructs a tree-like deep neural network (DNN) that takes multiple or individual data products as input and trains on them simultaneously and develops a hierarchical framework for ranking events by their probability of being true astrophysical transients. Expand
Highest Frequency Detection of FRB 121102 at 4–8 GHz Using the Breakthrough Listen Digital Backend at the Green Bank Telescope
We report the first detections of the repeating fast radio burst source FRB 121102 above 5.2 GHz. Observations were performed using the 4$-$8 GHz receiver of the Robert C. Byrd Green Bank TelescopeExpand
MULTIMOMENT RADIO TRANSIENT DETECTION
We present a multimoment technique for signal classification and apply it to the detection of fast radio transients in incoherently dedispersed data. Specifically, we define a spectral modulationExpand
The repeating Fast Radio Burst FRB 121102: Multi-wavelength observations and additional bursts
We report on radio and X-ray observations of the only known repeating Fast Radio Burst (FRB) source, FRB 121102. We have detected six additional radio bursts from this source: five with the GreenExpand
The Repeating Fast Radio Burst FRB 121102 as Seen on Milliarcsecond Angular Scales
The millisecond-duration radio flashes known as fast radio bursts (FRBs) represent an enigmatic astrophysical phenomenon. Recently, the sub-arcsecond localization (∼100 mas precision) of FRB 121102Expand
Giant pulses from the Crab pulsar: A wide-band study
The Crab pulsar is well-known for its anomalous giant radio pulse emission. Past studies have concentrated only on the very bright pulses or were insensitive to the faint end of the giant pulseExpand
Fast Radio Burst Discovered in the Arecibo Pulsar ALFA Survey
Recent work has exploited pulsar survey data to identify temporally isolated, millisecond-duration radio bursts with large dispersion measures (DMs). These bursts have been interpreted as arisingExpand
A repeating fast radio burst
TLDR
These repeat bursts with high dispersion measure and variable spectra specifically seen from the direction of FRB 121102 support an origin in a young, highly magnetized, extragalactic neutron star. Expand
AN ACCURATE AND EFFICIENT ALGORITHM FOR DETECTION OF RADIO BURSTS WITH AN UNKNOWN DISPERSION MEASURE, FOR SINGLE-DISH TELESCOPES AND INTERFEROMETERS
Astronomical radio signals are subjected to phase dispersion while traveling through the interstellar medium. To optimally detect a short-duration signal within a frequency band, we have to preciselyExpand
...
1
2
3
4
5
...