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A Highly Variable Magnetized Environment in a Pulsar Binary resembling Fast Radio Bursts

Li, Dongzi and Bilous, Anna and Ransom, Scott and Main, Robert and Yang, Yuan-Pei (2022) A Highly Variable Magnetized Environment in a Pulsar Binary resembling Fast Radio Bursts. . (Unpublished) https://resolver.caltech.edu/CaltechAUTHORS:20220809-232343107

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Abstract

Fast radio bursts (FRBs) are short, intense extragalactic radio bursts of unknown origin. Recent polarimetric studies have shown that a noticeable fraction of the repeating FRBs display irregular, short-time variations of the Faraday rotation measure (RM). Moreover, evidence for rare propagation effects such as Faraday conversion and polarized attenuation is seen in at least one FRB repeater. Together, they suggest a highly variable magneto-active circum-burst environment. In this paper, we report similar behavior in a globular cluster pulsar binary system PSR B1744-24A. We observe irregular fast changes of RM with both signs at random orbital phases as well as profile changes of the circular polarization when the pulsar emission passes close to the companion. The latter provides strong evidence for Faraday conversion and circularly polarized attenuation. These similarities between PSR B1744-24A and some FRB repeaters, as well as the possible binary-produced long-term periodicity of two active repeaters, and the discovery of a nearby FRB in a globular cluster, where pulsar binaries are common, all suggest that some fraction of FRBs have binary companions.


Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription
http://arxiv.org/abs/2205.07917arXivDiscussion Paper
http://dspsr.sourceforge.net/Related ItemDSPSR code
http://psrchive.sourceforge.net/Related ItemPSRCHIVE code
ORCID:
AuthorORCID
Li, Dongzi0000-0001-7931-0607
Bilous, Anna0000-0002-7177-6987
Ransom, Scott0000-0001-5799-9714
Main, Robert0000-0002-7164-9507
Yang, Yuan-Pei0000-0001-6374-8313
Additional Information:AVB is supported by the European Research Council under the European Union’s Seventh Framework Programme (FP/2007-2013)/ERC Grant Agreement No. 617199 (‘ALERT’) and by Vici research programme ‘ARGO’ with project number 639.043.815, financed by the Dutch Research Council (NWO). YPY is supported by NSFC grant No. 12003028 and the China Manned Spaced Project (CMS-CSST-2021-B11). SMR is a CIFAR Fellow and is supported by the NSF Physics Frontiers Center awards 1430284 and 2020265. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. The Green Bank Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. Author Contributions. DZL modelled and interpreted the data, and prepared the majority of the manuscript. AVB performed data preprocessing, calibration and intermediate measurements. SMR led the data acquisition and discovered the variability of circularly polarized emission. RM and YPY helped to revise the draft and provided valuable comments. Data availability. Data are available at request. Code availability. DSPSR (http://dspsr.sourceforge.net); PSRCHIVE (http://psrchive.sourceforge.net) The authors declare no competing financial interests.
Funders:
Funding AgencyGrant Number
European Research Council (ERC)617199
Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)639.043.815
National Natural Science Foundation of China12003028
China Manned Spaced ProjectCMS-CSST-2021-B11
Canadian Institute for Advanced Research (CIFAR)UNSPECIFIED
NSFPHY-1430284
NSFPHY-2020265
Record Number:CaltechAUTHORS:20220809-232343107
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20220809-232343107
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:116192
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:12 Aug 2022 00:30
Last Modified:12 Aug 2022 00:30

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