Searching for Gravitational-Wave Bursts from Cosmic String Cusps with the Parkes Pulsar Timing Array’s Third Data Release
Abstract
1. Introduction
2. Data
3. Signal of the GWCSs
4. Methods
5. Results
5.1. Earth-Term GWCS Search
5.2. Pulsar-Term Upper Limits
6. Conclusions
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
Abbreviations
PTA | Pulsar timing array |
GWs | Gravitational waves |
GWCSs | Gravitational-wave bursts from cosmic string cusps |
CURN | Common spatially uncorrelated red noise |
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Parameter | Prior | Description |
---|---|---|
log10Arn | LinearExp (−17, −11) | Amplitude of intrinsic pulsar red noise |
Uniform (0, 7) | Spectral index of intrinsic pulsar red noise | |
log10ACURN | LinearExp (−17, −11) | Amplitude of GWB |
Uniform (0, 7) | Spectral index of GWB | |
log10AGWCS | LinearExp (−18, −11) | Amplitude of GWCSs |
WGWCS | Uniform (0, 5000) | Width of GWCSs |
tGWCS | Uniform (MJD 53,500, MJD 59,100) | Epoch of GWCSs |
Uniform (0, ) | Polarization of GWCSs | |
Uniform (0, ) | Polar angle of GWCS source | |
Uniform (0, 2) | Azimuthal angle of GWCS source |
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Xia, Y.; Wang, J.; Kuroyanagi, S.; Yan, W.; Wen, Y.; Kapur, A.; Zou, J.; Feng, Y.; Di Marco, V.; Mishra, S.; et al. Searching for Gravitational-Wave Bursts from Cosmic String Cusps with the Parkes Pulsar Timing Array’s Third Data Release. Universe 2025, 11, 81. https://doi.org/10.3390/universe11030081
Xia Y, Wang J, Kuroyanagi S, Yan W, Wen Y, Kapur A, Zou J, Feng Y, Di Marco V, Mishra S, et al. Searching for Gravitational-Wave Bursts from Cosmic String Cusps with the Parkes Pulsar Timing Array’s Third Data Release. Universe. 2025; 11(3):81. https://doi.org/10.3390/universe11030081
Chicago/Turabian StyleXia, Yong, Jingbo Wang, Sachiko Kuroyanagi, Wenming Yan, Yirong Wen, Agastya Kapur, Jing Zou, Yi Feng, Valentina Di Marco, Saurav Mishra, and et al. 2025. "Searching for Gravitational-Wave Bursts from Cosmic String Cusps with the Parkes Pulsar Timing Array’s Third Data Release" Universe 11, no. 3: 81. https://doi.org/10.3390/universe11030081
APA StyleXia, Y., Wang, J., Kuroyanagi, S., Yan, W., Wen, Y., Kapur, A., Zou, J., Feng, Y., Di Marco, V., Mishra, S., Russell, C. J., Wang, S., Zhao, D., & Zhu, X. (2025). Searching for Gravitational-Wave Bursts from Cosmic String Cusps with the Parkes Pulsar Timing Array’s Third Data Release. Universe, 11(3), 81. https://doi.org/10.3390/universe11030081