Machine Learning Classification of Repeating FRBs from FRB121102

Abstract

Fast Radio Bursts (FRBs) are mysterious bursts in the millisecond timescale at radio wavelengths. Currently, there is little understanding about the classification of repeating FRBs, based on difference in physics, which is of great importance in understanding their origin. Recent works from the literature focus on using specific parameters to classify FRBs to draw inferences on the possible physical mechanisms or properties of these FRB subtypes. In this study, we use publicly available 1652 repeating FRBs from FRB121102 detected with the Five-hundred-meter Aperture Spherical Telescope (FAST), and studied them with an unsupervised machine learning model. By fine-tuning the hyperparameters of the model, we found that there is an indication for four clusters from the bursts of FRB121102 instead of the two clusters ("Classical" and "Atypical") suggested in the literature. Wherein, the "Atypical" cluster can be further classified into three sub-clusters with distinct characteristics. Our findings show that the clustering result we obtained is more comprehensive not only because our study produced results which are consistent with those in the literature but also because our work uses more physical parameters to create these clusters. Overall, our methods and analyses produced a more holistic approach in clustering the repeating FRBs of FRB121102.

24 pages, 14 figures, accepted for publication in MNRAS. For summary video, please see https://www.youtube.com/watch?v=wYx6t2G__84&list=PLOpYDs2PkYlYIiKDjDz6r6aKXcXdJZXYb&index=13&ab_channel=NCHUAstronomy

References in corpus (37)

• A bright millisecond radio burst of extragalactic origin
• A Population of Fast Radio Bursts at Cosmological Distances
• A Repeating Fast Radio Burst
• The direct localization of a fast radio burst and its host
• A fast radio burst associated with a Galactic magnetar
• The Host Galaxy and Redshift of the Repeating Fast Radio Burst FRB 121102
• Fast Radio Burst Discovered in the Arecibo Pulsar ALFA Survey
• An extreme magneto-ionic environment associated with the fast radio burst source FRB 121102
• Fast Radio Bursts: An Extragalactic Enigma
• The First CHIME/FRB Fast Radio Burst Catalog
• A Living Theory Catalogue for Fast Radio Bursts
• A single fast radio burst localized to a massive galaxy at cosmological distance
• The Repeating Fast Radio Burst FRB 121102 as Seen on Milliarcsecond Angular Scales
• The CHIME Fast Radio Burst Project: System Overview
• Millisecond Magnetar Birth Connects FRB 121102 to Superluminous Supernovae and Long Duration Gamma-ray Bursts
• A fast radio burst localised to a massive galaxy
• Highest-frequency detection of FRB 121102 at 4-8 GHz using the Breakthrough Listen Digital Backend at the Green Bank Telescope
• The repeating Fast Radio Burst FRB 121102: Multi-wavelength observations and additional bursts
• FRB 121102 Bursts Show Complex Time-Frequency Structure
• A flaring magnetar in FRB 121102?
• A bimodal burst energy distribution of a repeating fast radio burst source
• Possible periodic activity in the repeating FRB 121102
• Fast Radio Burst 121102 Pulse Detection and Periodicity: A Machine Learning Approach
• A fast radio burst in the direction of the Carina dwarf spheroidal galaxy
• FRB 121102 is coincident with a star forming region in its host galaxy
• FRB Energetics and detectability from high redshifts
• CHIME/FRB Detection of the Original Repeating Fast Radio Burst Source FRB 121102
• Testing the Young Neutron Star Scenario with Persistent Radio Emission Associated with FRB 121102
• Unveiling the Engines of Fast Radio Bursts, Super-Luminous Supernovae, and Gamma-Ray Bursts
• Applying Deep Learning to Fast Radio Burst Classification
• Energy functions of fast radio bursts derived from the first CHIME/FRB catalogue
• Uncloaking hidden repeating fast radio bursts with unsupervised machine learning
• A Machine Learning Classifier for Fast Radio Burst Detection at the VLBA
• H$\alpha$ intensity map of the repeating fast radio burst FRB 121102 host galaxy from Subaru/Kyoto 3DII AO-assisted optical integral-field spectroscopy
• Long and Short Fast Radio Bursts are Different from Repeating and Non-repeating Transients
• New Insights into the Criteria of Fast Radio Burst in the Light of FRB 20121102A
• On the relation between duration and energy of non-repeating fast radio bursts: census with the CHIME data

Cited by in corpus (2)

• Unsupervised Machine Learning for Classifying CHIME Fast Radio Bursts and Investigating Empirical Relations
• Repeating versus Nonrepeating Fast Radio Bursts: A Deep Learning Approach to Morphological Characterization