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Scintillation Timescales of Bright FRBs Detected by CHIME/FRB

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arxiv 2111.08753 v1 pith:OBO25TFM submitted 2021-11-16 astro-ph.HE astro-ph.IM

Scintillation Timescales of Bright FRBs Detected by CHIME/FRB

Eve Schoen , Calvin Leung , Kiyoshi Masui , Daniele Michilli , Pragya Chawla , Aaron B. Pearlman , Kaitlyn Shin , Ashley Stock This is my paper
classification astro-ph.HE astro-ph.IM
keywords scintillationfrbstimescaleschimedetectedfrequencymeasuremilky
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We describe a pipeline to measure scintillation in fast radio bursts (FRBs) detected by CHIME/FRB in the 400-800 MHz band by analyzing the frequency structure of the FRB's spectrum. We use the pipeline to measure the characteristic frequency bandwidths of scintillation between $4-100$ kHz in 12 FRBs corresponding to timescales of $\sim$2-40 $\mu$s for 10 FRBs detected by CHIME/FRB. For the other two FRBs, we did not detect scintillation in the region our analysis is sensitive. We compared the measured scintillation timescales to the NE2001 predictions for the scintillation timescales from the Milky Way. We find a strong correlation to be an indication that in most instances, the observed scintillation of FRBs can be explained by the Milky Way.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Detection of Partial Coherence due to Multipath Propagation for FRB 20220413B with CHIME/FRB

    astro-ph.HE 2025-12 conditional novelty 6.0

    FRB 20220413B's components share a common Milky Way scintillation pattern but show no phase-coherent lensing signature, so the complex morphology is not confirmed as plasma lensing.

  2. Simulating FRB Morphologies and Coherent Phase Correlation Signatures from Multi-Plane Astrophysical Lensing

    astro-ph.HE 2024-07 unverdicted novelty 5.0

    Simulation tool for multi-plane lensing of FRB point sources using coherent geometric optics on a spatial grid to produce morphologies and phase correlation signatures.