Frequency-dependent polarization of repeating fast radio bursts-implications for their origin
arXiv:2202.09601 · doi:10.1126/science.abl7759
Abstract
The polarization of fast radio bursts (FRBs), bright astronomical transients, contains crucial information about their environments. We report polarization measurements of five repeating FRBs, the abundant signals of which enable wide-band observations with two telescopes. A clear trend of lower polarization at lower frequencies was found, which can be well characterized by a single parameter rotation-measure-scatter (σRM) and modeled by multi-path scatter. Sources with higher σRM have higher RM magnitude and scattering timescales. The two sources with the most substantial σRM, FRB 20121102A and FRB 20190520B, are associated with a compact persistent radio source. These properties indicate a complex environment near the repeating FRBs, such as a supernova remnant or a pulsar wind nebula, consistent with their arising from young populations.
References in corpus (21)
- A bright millisecond radio burst of extragalactic origin
- TEMPO2, a new pulsar timing package. I: Overview
- PSRCHIVE and PSRFITS An Open Approach to Radio Pulsar Data Storage and Analysis
- The direct localization of a fast radio burst and its host
- The Repeating Fast Radio Burst FRB 121102 as Seen on Milliarcsecond Angular Scales
- The Physical Mechanisms of Fast Radio Bursts
- A bimodal burst energy distribution of a repeating fast radio burst source
- Nine New Repeating Fast Radio Burst Sources from CHIME/FRB
- The magnetic field and turbulence of the cosmic web measured using a brilliant fast radio burst
- Diverse polarization angle swings from a repeating fast radio burst source
- Estimating extragalactic Faraday rotation
- LOFAR Detection of 110-188 MHz Emission and Frequency-Dependent Activity from FRB 20180916B
- Calibrating High-Precision Faraday Rotation Measurements for LOFAR and the Next Generation of Low-Frequency Radio Telescopes
- A Study of Multi-frequency Polarization Pulse Profiles of Millisecond Pulsars
- High time resolution and polarisation properties of ASKAP-localised fast radio bursts
- Polarimetry of 600 pulsars from observations at 1.4 GHz with the Parkes radio telescope
- Dispersion Measure Variation of Repeating Fast Radio Burst Sources
- FRB event rate counts I --- Interpreting the Observations
- Polarization properties of FRB 20201124A from detections with the 100-m Effelsberg Radio Telescope
- CRAFTS for Fast Radio Bursts Extending the dispersion-fluence relation with new FRBs detected by FAST
- Synthesizing the intrinsic FRB population using frbpoppy
Cited by in corpus (14)
- Blinkverse: A Database of Fast Radio Bursts
- Temporal Scattering, Depolarization, and Persistent Radio Emission from Magnetized Inhomogeneous Environments Near Repeating Fast Radio Burst Sources
- The discovery and scientific potential of fast radio bursts
- Polarization of Fast Radio Bursts: radiation mechanisms and propagation effects
- Polarisation of magnetospheric curvature radiation in repeating fast radio bursts
- The FAST Core Array
- Detection of strong scattering close to the eclipse region of PSR B1957+20
- Deep Synoptic Array Science: Implications of Faraday Rotation Measures of Localized Fast Radio Bursts
- New continuum and polarization observations of the Cygnus Loop with FAST II. Images and analyses
- Bounding the Photon Mass with Ultrawide Bandwidth Pulsar Timing Data and Dedispersed Pulses of Fast Radio Bursts
- Plasma lensing with magnetic field and a small correction to the Faraday rotation measurement
- Searching for the spectral depolarisation of ASKAP one-off FRB sources
- Comparison of Burst Properties between FRB 20190520B and FRB 20121102A
- Simultaneous view of the FRB~180301 with FAST and NICER during a bursting phase