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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Discovery and Timing of Pulsars in the Globular Cluster M13 with FAST
Astrophysical Journal, Volume 892, No. 1, Article 43, Year 2020
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Description
We report the discovery of a binary millisecond pulsar (namely PSR J1641+3627F or M13F) in the globular cluster (GC) M13 (NGC 6205) and timing solutions of M13A to F using observations made with the Five-hundred-meter Aperture Spherical radio Telescope. PSR J1641+3627F has a spin period of 3.00 ms and an orbital period of 1.4 days. The most likely companion mass is 0.13 M o. M13A to E all have short spin periods and small period derivatives. We also confirm that the binary millisecond pulsar PSR J1641+3627E (also M13E) is a black widow with a companion mass around 0.02 M o. We find that all the binary systems have low eccentricities compared to those typical for GC pulsars and that they decrease with distance from the cluster core. This is consistent with what is expected, as this cluster has a very low encounter rate per binary. © 2020. The American Astronomical Society. All rights reserved.
Authors & Co-Authors
Wang, Lin
China, Beijing
Chinese Academy of Sciences
United Kingdom, Manchester
The University of Manchester
China, Beijing
University of Chinese Academy of Sciences
Peng, Bo
China, Beijing
Chinese Academy of Sciences
Stappers, Benjamin W.
United Kingdom, Manchester
The University of Manchester
Liu, Kuo
China, Beijing
Chinese Academy of Sciences
Germany, Bonn
Max Planck Institute for Radio Astronomy
Keith, Michael J.
United Kingdom, Manchester
The University of Manchester
Lyne, Andrew G.
United Kingdom, Manchester
The University of Manchester
Lu, Jiguang
China, Beijing
Chinese Academy of Sciences
Yu, Yezhao
China, Duyun
Qiannan Normal College for Nationalities
Kou, Feifei
China, Beijing
Chinese Academy of Sciences
Yan, Jun
China, Beijing
Chinese Academy of Sciences
Jiang, Peng
China, Beijing
Chinese Academy of Sciences
Jin, Chengjin
China, Beijing
Chinese Academy of Sciences
Li, D. H.
China, Beijing
Chinese Academy of Sciences
Li, Qi
China, Beijing
Chinese Academy of Sciences
Qian, Lei
China, Beijing
Chinese Academy of Sciences
Yue, Youling
China, Beijing
Chinese Academy of Sciences
Zhu, Yan
China, Beijing
Chinese Academy of Sciences
Statistics
Citations: 19
Authors: 17
Affiliations: 5
Identifiers
Doi:
10.3847/1538-4357/ab76cc
ISSN:
0004637X