REVIEW 5 cited by
Fast Radio Burst 121102 Pulse Detection and Periodicity: A Machine Learning Approach
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
Signed reviews
read the original abstract
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 algorithm in terms of higher sensitivity, lower false positive rates, and faster computational speed. Together with the 21 previously reported pulses, this observa- tion marks the highest number of FRB 121102 pulses from a single observation, total- ing 93 pulses in five hours, including 45 pulses within the first 30 minutes. The number of data points reveal trends in pulse fluence, pulse detection rate, and pulse frequency structure. We introduce a new periodicity search technique, based on the Rayleigh test, to analyze the time of arrivals, with which we exclude with 99% confidence pe- riodicity in time of arrivals with periods larger than 5.1 times the model-dependent time-stamp uncertainty. In particular, we rule out constant periods >10 ms in the barycentric arrival times, though intrinsic periodicity in the time of emission remains plausible.
Forward citations
Cited by 5 Pith papers
-
Two new highly scattered fast radio bursts: evidence for scatter broadening by the circumsource medium
FRB240312D is the first highly scattered FRB whose scattering screen is localized to within about 8 pc of the source, with the two new bursts implying a rate consistent with shorter FRBs.
-
First fast radio burst search campaign at the Argentine Institute of Radio Astronomy
The IAR campaign found one FRB candidate with DM 243 pc cm^-3 and S/N 8.2, backed by successful recovery of archival and injected bursts.
-
Depolarization Induced by Rapid Polarization Angle Swings: A Common Feature of Pulsars and Fast Radio Bursts?
Rapid polarization-angle swings should depolarize pulsar and FRB emission, yielding an anti-correlation Π_L vs dPA/dt that has tentative support in a subset of pulsars.
-
Neural networks in the search for fast radio bursts with RATAN-600
A 1D EfficientNet-based cascade trained on synthetic FRBs detects typical dispersed bursts at SNR above 4 with about two false positives per day on four-channel RATAN-600 data.
-
Signatures of Two Distinct Epochs of FRB 20240114A from January to August 2024 Based on its Energy and Waiting Time Analysis
FRB 20240114A shows two epochs with distinct energy distribution indices and waiting time statistics, suggesting different burst types before and after March 21 2024.
Discussion (0). Continue with ORCID to comment.