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

doi:10.1093/mnras/stad2383

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

Department of Physics

Research output: Contribution to journal › Article › peer-review

2 Citations (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 language	English
Pages (from-to)	4167-4175
Number of pages	9
Journal	Monthly Notices of the Royal Astronomical Society
Volume	525
Issue number	3
DOIs	https://doi.org/10.1093/mnras/stad2383
Publication status	Published - 2023 Nov 1

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.1093/mnras/stad2383

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title = "Influences of dynamical disruptions on the evolution of pulsars in globular clusters",

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.",

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

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T1 - Influences of dynamical disruptions on the evolution of pulsars in globular clusters

AU - Oh, Kwangmin

AU - Hui, C. Y.

AU - Hong, Jongsuk

AU - Takata, J.

AU - Kong, A. K.H.

AU - Tam, Pak Hin Thomas

AU - Li, Kwan Lok

AU - Cheng, K. S.

PY - 2023/11/1

Y1 - 2023/11/1

N2 - 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.

AB - 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.

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

Abstract

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