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Subsecond periodic radio oscillations in a microquasar

Author

Listed:
  • Pengfu Tian

    (Wuhan University
    Wuhan University)

  • Ping Zhang

    (Wuhan University
    Wuhan University)

  • Wei Wang

    (Wuhan University
    Wuhan University)

  • Pei Wang

    (Chinese Academy of Sciences
    Beijing Normal University)

  • Xiaohui Sun

    (Yunan University)

  • Jifeng Liu

    (Wuhan University
    Chinese Academy of Sciences)

  • Bing Zhang

    (University of Nevada
    University of Nevada)

  • Zigao Dai

    (Wuhan University
    University of Science and Technology of China)

  • Feng Yuan

    (Chinese Academy of Sciences)

  • Shuangnan Zhang

    (Chinese Academy of Sciences)

  • Qingzhong Liu

    (Chinese Academy of Sciences)

  • Peng Jiang

    (Chinese Academy of Sciences
    Guizhou University)

  • Xuefeng Wu

    (Chinese Academy of Sciences)

  • Zheng Zheng

    (Chinese Academy of Sciences)

  • Jiashi Chen

    (Wuhan University
    Wuhan University)

  • Di Li

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences
    Zhijiang Lab)

  • Zonghong Zhu

    (Wuhan University
    Henan Academy of Sciences)

  • Zhichen Pan

    (Chinese Academy of Sciences
    Guizhou University)

  • Hengqian Gan

    (Chinese Academy of Sciences
    Guizhou University)

  • Xiao Chen

    (Wuhan University
    Wuhan University)

  • Na Sai

    (Wuhan University
    Wuhan University)

Abstract

Powerful relativistic jets are one of the ubiquitous features of accreting black holes in all scales1–3. GRS 1915 + 105 is a well-known fast-spinning black-hole X-ray binary4 with a relativistic jet, termed a ‘microquasar’, as indicated by its superluminal motion of radio emission5,6. It has exhibited persistent X-ray activity over the last 30 years, with quasiperiodic oscillations of approximately 1–10 Hz (refs. 7–9) and 34 and 67 Hz in the X-ray band10. These oscillations probably originate in the inner accretion disk, but other origins have been considered11. Radio observations found variable light curves with quasiperiodic flares or oscillations with periods of approximately 20–50 min (refs. 12–14). Here we report two instances of approximately 5-Hz transient periodic oscillation features from the source detected in the 1.05- to 1.45-GHz radio band that occurred in January 2021 and June 2022. Circular polarization was also observed during the oscillation phase.

Suggested Citation

  • Pengfu Tian & Ping Zhang & Wei Wang & Pei Wang & Xiaohui Sun & Jifeng Liu & Bing Zhang & Zigao Dai & Feng Yuan & Shuangnan Zhang & Qingzhong Liu & Peng Jiang & Xuefeng Wu & Zheng Zheng & Jiashi Chen &, 2023. "Subsecond periodic radio oscillations in a microquasar," Nature, Nature, vol. 621(7978), pages 271-275, September.
    • Handle: RePEc:nat:nature:v:621:y:2023:i:7978:d:10.1038_s41586-023-06336-6
    DOI: 10.1038/s41586-023-06336-6
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