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Peer-reviewedCC BY中国科学通报：英文版

A 44-min periodic radio transient in a supernova remnant

  • Di Li1
  • Mao Yuan2
  • Lin Wu2
  • Jingye Yan3
  • Xuning Lv4
  • Chao‐Wei Tsai5
  • Pei Wang6
  • Jiaqi Zhao7
  • Weiwei Zhu6
  • Li Deng2
  • Ailan Lan2
  • Renxin Xu8
37 more authors
  • Xianglei Chen9,5
  • Lingqi Meng10
  • Jian Li11
  • Xiangdong Li12
  • Ping Zhou12
  • Haoran Yang12
  • Mengyao Xue5
  • Jiguang Lu5
  • Chenchen Miao13
  • Weiyang Wang10
  • Jiarui Niu5
  • Ziyao Fang10
  • Qiuyang Fu10
  • Yi Feng14
  • Peijing Zhang15
  • Jinchen Jiang5
  • Xueli Miao5
  • Chen Yu2
  • Lingchen Sun16
  • Yang Yang16,2
  • Xiang Deng16
  • Shi Dai17
  • Xue Chen9,5
  • Jumei Yao18
  • Yujie Liu2
  • Changheng Li2
  • Minglu Zhang2
  • Yiwen Yang16,2
  • Yiyizhou2
  • Yiyi Zhou2
  • Yongkun Zhang5
  • Chenhui Niu19
  • Rushuang Zhao20
  • Lei Zhang21
  • Bo Peng5
  • Ji Mei Wu2
  • Chi Wang2
21 affiliations
  1. 1Department of Astronomy, Tsinghua University, Beijing 100084, China; State Key Laboratory of Radio Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China
  2. 2State Key Laboratory of Solar Activity and Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing 100101, China; National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China; Radio Science and Technology Center (π Center), Chengdu Branch, Chinese Academy of Sciences, Chengdu 610041, China
  3. 3State Key Laboratory of Solar Activity and Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing 100101, China; National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China; Radio Science and Technology Center (π Center), Chengdu Branch, Chinese Academy of Sciences, Chengdu 610041, China. Electronic address: [email protected]
  4. 4State Key Laboratory of Solar Activity and Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing 100101, China; National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China; Radio Science and Technology Center (π Center), Chengdu Branch, Chinese Academy of Sciences, Chengdu 610041, China. Electronic address: [email protected]
  5. 5State Key Laboratory of Radio Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China
  6. 6State Key Laboratory of Radio Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China; Institute for Frontiers in Astronomy and Astrophysics, Beijing Normal University, Beijing 102206, China
  7. 7Department of Astronomy, Tsinghua University, Beijing 100084, China
  8. 8Department of Astronomy, Peking University, Beijing 100871, China; Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, China; State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
  9. 9Beijing Institute of Technology Chongqing Innovation Center, Chongqing 401135, China
  10. 10State Key Laboratory of Radio Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China; School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, China
  11. 11Department of Astronomy, School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China
  12. 12School of Astronomy and Space Science, Nanjing University, Nanjing 210023, China; Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing 210023, China
  13. 13College of Physics and Electronic Engineering, Qilu Normal University, Jinan 250200, China
  14. 14Zhejiang Lab, Hangzhou 311121, China
  15. 15Department of Physics, University of Helsinki, POBox 64 00014 Helsinki, Finland
  16. 16State Key Laboratory of Solar Activity and Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing 100101, China; National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China
  17. 17Western Sydney University, Locked Bag 1797, Penrith South DC, NSW 2751, Australia; School of Science, CSIRO Space and Astronomy, Australia Telescope National Facility, Epping, NSW 1710, Australia
  18. 18Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi 830011, China
  19. 19Center China Normal University, Wuhan 430079, China
  20. 20Guizhou Normal University, Guiyang 550001, China
  21. 21State Key Laboratory of Radio Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China; Centre for Astrophysics and Supercomputing, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC 3122, Australia
Open at sourceDOICite

Abstract

Long-period radio transients (LPTs) are a newly discovered class of radio emitters with periods ranging from minutes to hours. The astrophysical nature remains undetermined, particularly of LPTs with no detectable companions. We report the first evidence for a plausible supernova remnant (SNR) association with an LPT (DART J1832-0911, 2656.23 ± 0.15 s period), which supports a neutron star origin of such objects. The dispersion measure of this LPT, SNR's CO emission and neutral hydrogen (HI) absorption, and low probability of chance of alignment with field pulsars are all consistent with such an association. The source displays either phase-locked circular or nearly 100% linear polarization, indicating its strong and geometrically stable magnetic field. No detectable optical counterpart was found, even with a 10 m-class telescope. The SNR association and the stable polarization suggest that DART J1832-0911 most likely originates from a young neutron star, whose spin could have been braked by supernova's fallback materials. This discovery provides critical insights into the nature of ultra-long period transients and their link to stellar remnants.

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Cite

BibTeXRIS
BibTeX
@article{li202644min,
  title = {{A 44-min periodic radio transient in a supernova remnant}},
  author = {Di Li and Mao Yuan and Lin Wu and Jingye Yan and Xuning Lv and Chao‐Wei Tsai and Pei Wang and Jiaqi Zhao and Weiwei Zhu and Li Deng and Ailan Lan and Renxin Xu and Xianglei Chen and Lingqi Meng and Jian Li and Xiangdong Li and Ping Zhou and Haoran Yang and Mengyao Xue and Jiguang Lu and Chenchen Miao and Weiyang Wang and Jiarui Niu and Ziyao Fang and Qiuyang Fu and Yi Feng and Peijing Zhang and Jinchen Jiang and Xueli Miao and Chen Yu and Lingchen Sun and Yang Yang and Xiang Deng and Shi Dai and Xue Chen and Jumei Yao and Yujie Liu and Changheng Li and Minglu Zhang and Yiwen Yang and Yiyizhou and Yiyi Zhou and Yongkun Zhang and Chenhui Niu and Rushuang Zhao and Lei Zhang and Bo Peng and Ji Mei Wu and Chi Wang},
  journal = {中国科学通报：英文版},
  year = {2026},
  month = jun,
  doi = {10.1016/j.scib.2026.06.015},
  url = {https://doi.org/10.1016/j.scib.2026.06.015},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - A 44-min periodic radio transient in a supernova remnant
AU  - Di Li
AU  - Mao Yuan
AU  - Lin Wu
AU  - Jingye Yan
AU  - Xuning Lv
AU  - Chao‐Wei Tsai
AU  - Pei Wang
AU  - Jiaqi Zhao
AU  - Weiwei Zhu
AU  - Li Deng
AU  - Ailan Lan
AU  - Renxin Xu
AU  - Xianglei Chen
AU  - Lingqi Meng
AU  - Jian Li
AU  - Xiangdong Li
AU  - Ping Zhou
AU  - Haoran Yang
AU  - Mengyao Xue
AU  - Jiguang Lu
AU  - Chenchen Miao
AU  - Weiyang Wang
AU  - Jiarui Niu
AU  - Ziyao Fang
AU  - Qiuyang Fu
AU  - Yi Feng
AU  - Peijing Zhang
AU  - Jinchen Jiang
AU  - Xueli Miao
AU  - Chen Yu
AU  - Lingchen Sun
AU  - Yang Yang
AU  - Xiang Deng
AU  - Shi Dai
AU  - Xue Chen
AU  - Jumei Yao
AU  - Yujie Liu
AU  - Changheng Li
AU  - Minglu Zhang
AU  - Yiwen Yang
AU  - Yiyizhou
AU  - Yiyi Zhou
AU  - Yongkun Zhang
AU  - Chenhui Niu
AU  - Rushuang Zhao
AU  - Lei Zhang
AU  - Bo Peng
AU  - Ji Mei Wu
AU  - Chi Wang
PY  - 2026
DA  - 2026/06/11
JO  - 中国科学通报：英文版
DO  - 10.1016/j.scib.2026.06.015
UR  - https://doi.org/10.1016/j.scib.2026.06.015
AB  - Long-period radio transients (LPTs) are a newly discovered class of radio emitters with periods ranging from minutes to hours. The astrophysical nature remains undetermined, particularly of LPTs with no detectable companions. We report the first evidence for a plausible supernova remnant (SNR) association with an LPT (DART J1832-0911, 2656.23 ± 0.15 s period), which supports a neutron star origin of such objects. The dispersion measure of this LPT, SNR's CO emission and neutral hydrogen (HI) absorption, and low probability of chance of alignment with field pulsars are all consistent with such an association. The source displays either phase-locked circular or nearly 100% linear polarization, indicating its strong and geometrically stable magnetic field. No detectable optical counterpart was found, even with a 10 m-class telescope. The SNR association and the stable polarization suggest that DART J1832-0911 most likely originates from a young neutron star, whose spin could have been braked by supernova's fallback materials. This discovery provides critical insights into the nature of ultra-long period transients and their link to stellar remnants.
SN  - 2095-9273
SN  - 2095-9281
ER  -