Atlas of dynamic spectra of fast radio burst FRB 20201124A

TL;DR

This paper presents the largest collection of dynamic spectra for the repeating FRB 20201124A, obtained with FAST, providing valuable data for understanding its emission properties during an active phase.

Contribution

It introduces the largest dataset of 1863 burst dynamic spectra for FRB 20201124A, recorded during its active phase, facilitating detailed analysis of its characteristics.

Findings

Largest burst sample for an FRB to date

Provides detailed dynamic spectra and pulse identification tools

Enables future studies on FRB emission mechanisms

Abstract

Fast radio bursts (FRBs) are highly dispersed millisecond-duration radio bursts, of which the physical origin is still not fully understood. FRB 20201124A is one of the most actively repeating FRBs. In this paper, we present the collection of 1863 burst dynamic spectra of FRB 20201124A measured with the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The current collection, taken from the observation during the FRB active phase from April to June 2021, is the largest burst sample detected in any FRB so far. The standard PSRFITs format is adopted, including dynamic spectra of the burst, and the time information of the dynamic spectra, in addition, mask files help readers to identify the pulse positions are also provided.