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Decadal evolution of a repeating fast radio burst source

Fuente: arXiv

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Bibliographic Details
Main Authors:	Wang, P., Zhang, J. S., Yang, Y. P., Zhou, D. K., Zhang, Y. K., Feng, Y., Zhao, Z. Y., Fang, J. H., Li, D., Zhu, W. W., Zhang, B., Wang, F. Y., Huang, Y. F., Luo, R., Han, J. L., Lee, K. J., Tsai, C. W., Dai, Z. G., Gao, H., Zheng, X. P., Cao, J. H., Chen, X. L., Gugercinoglu, E., Jiang, J. C., Jing, W. C., Li, Y., Li, J., Lu, W. J., Luo, J. W., Lyu, F., Miao, C. C., Niu, C. H., Niu, J. R., Qu, Y., Wang, W. Y., Wang, Y. D., Wang, Y. B., Wang, C. J., Wu, Q., Wu, Y. S., Weng, S. M., Xiao, D., Xu, H., Yao, J. M., Zhang, C. F., Zhao, R. S., Liu, Q. Z., Zhang, J., Zhou, D. J., Zhang, L., Zhu, Y. H.
Format:	Preprint
Published:	2025
Subjects:	High Energy Astrophysical Phenomena
Online Access:	Acceder al recurso
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author	Wang, P. Zhang, J. S. Yang, Y. P. Zhou, D. K. Zhang, Y. K. Feng, Y. Zhao, Z. Y. Fang, J. H. Li, D. Zhu, W. W. Zhang, B. Wang, F. Y. Huang, Y. F. Luo, R. Han, J. L. Lee, K. J. Tsai, C. W. Dai, Z. G. Gao, H. Zheng, X. P. Cao, J. H. Chen, X. L. Gugercinoglu, E. Jiang, J. C. Jing, W. C. Li, Y. Li, J. Lu, W. J. Luo, J. W. Lyu, F. Miao, C. C. Niu, C. H. Niu, J. R. Qu, Y. Wang, W. Y. Wang, Y. D. Wang, Y. B. Wang, C. J. Wu, Q. Wu, Y. S. Weng, S. M. Xiao, D. Xu, H. Yao, J. M. Zhang, C. F. Zhao, R. S. Liu, Q. Z. Zhang, J. Zhou, D. J. Zhang, L. Zhu, Y. H.
author_facet	Wang, P. Zhang, J. S. Yang, Y. P. Zhou, D. K. Zhang, Y. K. Feng, Y. Zhao, Z. Y. Fang, J. H. Li, D. Zhu, W. W. Zhang, B. Wang, F. Y. Huang, Y. F. Luo, R. Han, J. L. Lee, K. J. Tsai, C. W. Dai, Z. G. Gao, H. Zheng, X. P. Cao, J. H. Chen, X. L. Gugercinoglu, E. Jiang, J. C. Jing, W. C. Li, Y. Li, J. Lu, W. J. Luo, J. W. Lyu, F. Miao, C. C. Niu, C. H. Niu, J. R. Qu, Y. Wang, W. Y. Wang, Y. D. Wang, Y. B. Wang, C. J. Wu, Q. Wu, Y. S. Weng, S. M. Xiao, D. Xu, H. Yao, J. M. Zhang, C. F. Zhao, R. S. Liu, Q. Z. Zhang, J. Zhou, D. J. Zhang, L. Zhu, Y. H.
contents	The origin of fast radio bursts (FRBs), the brightest cosmic radio explosions, is still unknown. Bearing critical clues to FRBs' origin, the long-term evolution of FRBs has yet to be confirmed, since the field is still young and most FRBs were seen only once. Here we report clear evidence of decadal evolution of FRB~20121102A, the first precisely localized repeater. In conjunction with archival data, our FAST and GBT monitoring campaign since 2020 reveals a significant 7% decline of local dispersion measure (DM). The rotation measure (RM) of 30,755$\pm$16 $\mathrm{rad\,m^{-2}}$ detected in the last epoch represents a 70% decrease compared to that from December 2016. The $σ_{RM}$ parameter, which describes the complexity of the magneto-ionic environment surrounding the source, was shown to have decreased by 13%. These general trends reveal an evolving FRB environment, which could originate from an early-phase supernova associated with an enhanced pair wind from the FRB central engine.
format	Preprint
id	arxiv_https___arxiv_org_abs_2507_15790
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	Decadal evolution of a repeating fast radio burst source Wang, P. Zhang, J. S. Yang, Y. P. Zhou, D. K. Zhang, Y. K. Feng, Y. Zhao, Z. Y. Fang, J. H. Li, D. Zhu, W. W. Zhang, B. Wang, F. Y. Huang, Y. F. Luo, R. Han, J. L. Lee, K. J. Tsai, C. W. Dai, Z. G. Gao, H. Zheng, X. P. Cao, J. H. Chen, X. L. Gugercinoglu, E. Jiang, J. C. Jing, W. C. Li, Y. Li, J. Lu, W. J. Luo, J. W. Lyu, F. Miao, C. C. Niu, C. H. Niu, J. R. Qu, Y. Wang, W. Y. Wang, Y. D. Wang, Y. B. Wang, C. J. Wu, Q. Wu, Y. S. Weng, S. M. Xiao, D. Xu, H. Yao, J. M. Zhang, C. F. Zhao, R. S. Liu, Q. Z. Zhang, J. Zhou, D. J. Zhang, L. Zhu, Y. H. High Energy Astrophysical Phenomena The origin of fast radio bursts (FRBs), the brightest cosmic radio explosions, is still unknown. Bearing critical clues to FRBs' origin, the long-term evolution of FRBs has yet to be confirmed, since the field is still young and most FRBs were seen only once. Here we report clear evidence of decadal evolution of FRB~20121102A, the first precisely localized repeater. In conjunction with archival data, our FAST and GBT monitoring campaign since 2020 reveals a significant 7% decline of local dispersion measure (DM). The rotation measure (RM) of 30,755$\pm$16 $\mathrm{rad\,m^{-2}}$ detected in the last epoch represents a 70% decrease compared to that from December 2016. The $σ_{RM}$ parameter, which describes the complexity of the magneto-ionic environment surrounding the source, was shown to have decreased by 13%. These general trends reveal an evolving FRB environment, which could originate from an early-phase supernova associated with an enhanced pair wind from the FRB central engine.
title	Decadal evolution of a repeating fast radio burst source
topic	High Energy Astrophysical Phenomena
url	https://arxiv.org/abs/2507.15790