A radio pulsar phase from SGR J1935+2154 provides clues to the magnetar FRB mechanism-Reference-Cited by-同舟云学术

A radio pulsar phase from SGR J1935+2154 provides clues to the magnetar FRB mechanism

Published:2023-07-28 Issue:30 Volume:9 Page:
ISSN:2375-2548
Container-title:Science Advances
language:en
Short-container-title:Sci. Adv.

Author:

Zhu Weiwei¹²^ORCID,Xu Heng¹³⁴^ORCID,Zhou Dejiang¹⁵^ORCID,Lin Lin²⁶^ORCID,Wang Bojun¹³^ORCID,Wang Pei¹²^ORCID,Zhang Chunfeng¹³^ORCID,Niu Jiarui¹⁵^ORCID,Chen Yutong¹⁵^ORCID,Li Chengkui⁷^ORCID,Meng Lingqi¹⁵^ORCID,Lee Kejia¹³⁴^ORCID,Zhang Bing⁸⁹^ORCID,Feng Yi¹⁰^ORCID,Ge Mingyu⁷^ORCID,Göğüş Ersin¹¹^ORCID,Guan Xing¹^ORCID,Han Jinlin¹^ORCID,Jiang Jinchen¹³^ORCID,Jiang Peng¹¹²^ORCID,Kouveliotou Chryssa¹³^ORCID,Li Di¹¹¹^ORCID,Miao Chenchen¹⁵^ORCID,Miao Xueli¹,Men Yunpeng¹⁴,Niu Chenghui¹^ORCID,Wang Weiyang³⁵^ORCID,Wang Zhengli¹⁴,Xu Jiangwei¹³,Xu Renxin²,Xue Mengyao¹^ORCID,Yang Yuanpei¹⁵^ORCID,Yu Wenfei¹⁶^ORCID,Yuan Mao¹⁵^ORCID,Yue Youling¹^ORCID,Zhang Shuangnan⁷^ORCID,Zhang Yongkun¹⁵^ORCID

Affiliation:

1. National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China.

2. Institute for Frontiers in Astronomy and Astrophysics, Beijing Normal University, Beijing 102206, China.

3. Department of Astronomy, Peking University, Beijing 100871, China.

4. Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, China.

5. University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100049, China.

6. Department of Astronomy, Beijing Normal University, Beijing 100875, China.

7. Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.

8. Nevada Center for Astrophysics, University of Nevada, Las Vegas, NV 89154, USA.

9. Department of Physics and Astronomy, University of Nevada, Las Vegas, NV 89154, USA.

10. Zhejiang Lab, Hangzhou, Zhejiang 311121, China.

11. Faculty of Engineering and Natural Sciences, Sabancı University, 34956 İstanbul, Turkey.

12. Department of Physics, The George Washington University, 725 21st St. NW, Washington, DC 20052, USA.

13. Max-Planck Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany.

14. GuangXi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, GuangXi University, Naning 530004, China.

15. South-Western Institute for Astronomy Research, Yunnan University, Kunming 650500, Yunnan, China.

16. Shanghai Astronomical Observatory, Chinese Academy of Science, Shanghai 200030, China.

Abstract

The megajansky radio burst, FRB 20200428, and other bright radio bursts detected from the Galactic source SGR J1935+2154 suggest that magnetars can make fast radio bursts (FRBs), but the emission site and mechanism of FRB-like bursts are still unidentified. Here, we report the emergence of a radio pulsar phase of the magnetar 5 months after FRB 20200428. Pulses were detected in 16.5 hours over 13 days using the Five-hundred-meter Aperture Spherical radio Telescope, with luminosities of about eight decades fainter than FRB 20200428. The pulses were emitted in a narrow phase window anti-aligned with the x-ray pulsation profile observed using the x-ray telescopes. The bursts, conversely, appear in random phases. This dichotomy suggests that radio pulses originate from a fixed region within the magnetosphere, but bursts occur in random locations and are possibly associated with explosive events in a dynamically evolving magnetosphere. This picture reconciles the lack of periodicity in cosmological repeating FRBs within the magnetar engine model.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Link

https://www.science.org/doi/pdf/10.1126/sciadv.adf6198

Reference65 articles.

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