Exploring the Link between Fast Radio Burst and Binary Neutron Star Origins with Spaceborne Gravitational Wave Observations

The origin of repeating fast radio bursts (rFRBs) is an open question, with observations suggesting that at least some are associated with old stellar populations. It has been proposed that some rFRBs may be produced by interactions of the binary neutron star (BNS) magnetospheres decades to centurie...

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Main Authors: Yu-xuan Yin, En-kun Li, Bing Zhang, Yi-Ming Hu
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Series:The Astrophysical Journal Letters
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Online Access:https://doi.org/10.3847/2041-8213/add875
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author Yu-xuan Yin
En-kun Li
Bing Zhang
Yi-Ming Hu
author_facet Yu-xuan Yin
En-kun Li
Bing Zhang
Yi-Ming Hu
author_sort Yu-xuan Yin
collection DOAJ
description The origin of repeating fast radio bursts (rFRBs) is an open question, with observations suggesting that at least some are associated with old stellar populations. It has been proposed that some rFRBs may be produced by interactions of the binary neutron star (BNS) magnetospheres decades to centuries before the coalescence. These systems would also emit centi-Hertz gravitational waves during this period, which can be detectable by spaceborne gravitational wave detectors. We explore the prospects of using current and future spaceborne gravitational wave detectors, such as TianQin, LISA, and DECIGO, to test this fast radio burst (FRB) formation hypothesis. Focusing on nearby galaxies like M81, which hosts an rFRB source in a globular cluster, we calculate the detection capabilities for BNS systems. Our analysis reveals that while missions like TianQin and LISA face limitations in horizon distance, changing the detector pointing direction could significantly enhance detection probabilities. Considering that the chance of a Milky Way–like galaxy coincidentally containing a BNS within 100 yr before merger is only 3 × 10 ^−5 –5 × 10 ^−3 , if a signal is detected originating from M81, we can establish the link between FRBs and BNSs with a significance level of at least 2.81 σ . For TianQin and LISA, Bayes factors for rFRB–BNS associations range from 4 × 10 ^6 to 7 × 10 ^8 under ideal assumptions of uniform event distribution, dropping to 5 × 10 ^2 –10 ^5 when accounting for the fact that the events are confined in galaxies. Next-generation detectors such as DECIGO offer enhanced capabilities compared to TianQin and LISA and should easily detect these systems in M81 and beyond. DECIGO can boost the Bayes factor by up to 4 orders of magnitude (10 ^10 –10 ^12 ideally and 10 ^4 –10 ^6 realistically). Our work highlights the critical role of spaceborne gravitational wave missions in unraveling FRB origins.
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spelling doaj-art-26f06bc1db9644b89e93d52a3938f3da2025-08-20T03:21:42ZengIOP PublishingThe Astrophysical Journal Letters2041-82052025-01-019852L4510.3847/2041-8213/add875Exploring the Link between Fast Radio Burst and Binary Neutron Star Origins with Spaceborne Gravitational Wave ObservationsYu-xuan Yin0En-kun Li1https://orcid.org/0000-0002-3186-8721Bing Zhang2https://orcid.org/0000-0002-9725-2524Yi-Ming Hu3https://orcid.org/0000-0002-7869-0174MOE Key Laboratory of TianQin Mission, TianQin Research Center for Gravitational Physics & School of Physics and Astronomy, Frontiers Science Center for TianQin Gravitational Wave Research Center of CNSA, Sun Yat-sen University (Zhuhai Campus) , Zhuhai 519082, People’s Republic of China ; huyiming@sysu.edu.cnMOE Key Laboratory of TianQin Mission, TianQin Research Center for Gravitational Physics & School of Physics and Astronomy, Frontiers Science Center for TianQin Gravitational Wave Research Center of CNSA, Sun Yat-sen University (Zhuhai Campus) , Zhuhai 519082, People’s Republic of China ; huyiming@sysu.edu.cnNevada Center for Astrophysics, University of Nevada , Las Vegas, NV 89154, USA; Department of Physics and Astronomy, University of Nevada , Las Vegas, NV 89154, USAMOE Key Laboratory of TianQin Mission, TianQin Research Center for Gravitational Physics & School of Physics and Astronomy, Frontiers Science Center for TianQin Gravitational Wave Research Center of CNSA, Sun Yat-sen University (Zhuhai Campus) , Zhuhai 519082, People’s Republic of China ; huyiming@sysu.edu.cnThe origin of repeating fast radio bursts (rFRBs) is an open question, with observations suggesting that at least some are associated with old stellar populations. It has been proposed that some rFRBs may be produced by interactions of the binary neutron star (BNS) magnetospheres decades to centuries before the coalescence. These systems would also emit centi-Hertz gravitational waves during this period, which can be detectable by spaceborne gravitational wave detectors. We explore the prospects of using current and future spaceborne gravitational wave detectors, such as TianQin, LISA, and DECIGO, to test this fast radio burst (FRB) formation hypothesis. Focusing on nearby galaxies like M81, which hosts an rFRB source in a globular cluster, we calculate the detection capabilities for BNS systems. Our analysis reveals that while missions like TianQin and LISA face limitations in horizon distance, changing the detector pointing direction could significantly enhance detection probabilities. Considering that the chance of a Milky Way–like galaxy coincidentally containing a BNS within 100 yr before merger is only 3 × 10 ^−5 –5 × 10 ^−3 , if a signal is detected originating from M81, we can establish the link between FRBs and BNSs with a significance level of at least 2.81 σ . For TianQin and LISA, Bayes factors for rFRB–BNS associations range from 4 × 10 ^6 to 7 × 10 ^8 under ideal assumptions of uniform event distribution, dropping to 5 × 10 ^2 –10 ^5 when accounting for the fact that the events are confined in galaxies. Next-generation detectors such as DECIGO offer enhanced capabilities compared to TianQin and LISA and should easily detect these systems in M81 and beyond. DECIGO can boost the Bayes factor by up to 4 orders of magnitude (10 ^10 –10 ^12 ideally and 10 ^4 –10 ^6 realistically). Our work highlights the critical role of spaceborne gravitational wave missions in unraveling FRB origins.https://doi.org/10.3847/2041-8213/add875Gravitational wave detectorsGravitational wavesGravitational wave astronomyGravitational wave sourcesRadio transient sources
spellingShingle Yu-xuan Yin
En-kun Li
Bing Zhang
Yi-Ming Hu
Exploring the Link between Fast Radio Burst and Binary Neutron Star Origins with Spaceborne Gravitational Wave Observations
The Astrophysical Journal Letters
Gravitational wave detectors
Gravitational waves
Gravitational wave astronomy
Gravitational wave sources
Radio transient sources
title Exploring the Link between Fast Radio Burst and Binary Neutron Star Origins with Spaceborne Gravitational Wave Observations
title_full Exploring the Link between Fast Radio Burst and Binary Neutron Star Origins with Spaceborne Gravitational Wave Observations
title_fullStr Exploring the Link between Fast Radio Burst and Binary Neutron Star Origins with Spaceborne Gravitational Wave Observations
title_full_unstemmed Exploring the Link between Fast Radio Burst and Binary Neutron Star Origins with Spaceborne Gravitational Wave Observations
title_short Exploring the Link between Fast Radio Burst and Binary Neutron Star Origins with Spaceborne Gravitational Wave Observations
title_sort exploring the link between fast radio burst and binary neutron star origins with spaceborne gravitational wave observations
topic Gravitational wave detectors
Gravitational waves
Gravitational wave astronomy
Gravitational wave sources
Radio transient sources
url https://doi.org/10.3847/2041-8213/add875
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