Influences of dynamical disruptions on the evolution of pulsars in globular clusters

Kwangmin Oh, C. Y. Hui, Jongsuk Hong, J. Takata, A. K.H. Kong, Pak Hin Thomas Tam, Kwan Lok Li, K. S. Cheng

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

By comparing the physical properties of pulsars hosted by core-collapsed (CCed) and non-core-collapsed (non-CCed) globular clusters (GCs), we find that pulsars in CCed GCs rotate significantly slower than their counterparts in non-CCed GCs. Additionally, radio luminosities at 1.4 GHz in CCed GCs are higher. These findings are consistent with the scenario that dynamical interactions in GCs can interrupt angular momentum transfer processes and surface magnetic field decay during the recycling phase. Our results suggest that such effects in CCed GCs are stronger due to more frequent disruptions of compact binaries. This is further supported by the observation that both estimated disruption rates and the fraction of isolated pulsars are predominantly higher in CCed GCs.

Original languageEnglish
Pages (from-to)4167-4175
Number of pages9
JournalMonthly Notices of the Royal Astronomical Society
Volume525
Issue number3
DOIs
Publication statusPublished - 2023 Nov 1

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

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