GBT23B-329

Monitoring the active repeater FRB 20230607

Abstract

FRB 200230607 was discovered by CHIME. Recently, FAST conducted observations of this source within a two-hour window and detected over 200 burst, indicating that this FRB source is currently in an active phase. Interestingly, no significant linear polarization was detected within these burst. These observations revealed a complex local environment of this source. Here we request 5 sessions of 2 hours with GBT using its C-band or S-band receiver, distributed over 1-2 weeks. Anticipated observation over 10 hours is expected to detect approximately 100 bursts, providing ample data for the analysis of its burst rate, energy, RM, and RM scattering. In addition, any burst detections will give the first RM measurements, which will constrain the environment or the FRB source. By combing the proposed GBT observation with our FAST programs, we will also carry out the first study of wide-band emission properties of this unique source, which will further improve our understanding of the relation between FRB properties and their environment.

Investigators

Name	Institution
Ryan Lynch	Green Bank Observatory
Jintao Xie	Xinjiang Astronomical Observatory, CAS
Chenhui Niu	National Astronomical Observatories, CAS
Pei Wang	National Astronomical Observatories, CAS
Yongkun Zhang	National Astronomical Observatories, CAS
Yi Feng *	National Astronomical Observatories, CAS
Di Li	National Astronomical Observatories, CAS; Space Science Institute

* indicates the PI