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Article: A Comparison of Millisecond Pulsar Populations between Globular Clusters and the Galactic Field

TitleA Comparison of Millisecond Pulsar Populations between Globular Clusters and the Galactic Field
Authors
Issue Date1-Feb-2023
PublisherAmerican Astronomical Society
Citation
Astrophysical Journal, 2023, v. 944, n. 2, p. 225:1-25 How to Cite?
Abstract

We have performed a systematic study of the rotational, orbital, and X-ray properties of millisecond pulsars (MSPs) in globular clusters (GCs) and compared their nature with those of the MSPs in the Galactic field (GF). We found that GC MSPs generally rotate slower than their counterparts in the GF. Different from the expectation of a simple recycling scenario, no evidence for the correlation between the orbital period and the rotation period can be found in the MSP binaries in GCs. There is also an indication that the surface magnetic field of GC MSPs is stronger than those in the GF. All these suggest dynamical interactions in GCs can alter the evolution of MSPs/their progenitors, which can leave an imprint on their X-ray emission properties. While the MSPs in both GF and GCs have similar distributions of X-ray luminosity and hardness, our sample supports the notion that these two populations follow different relations between the X-ray luminosity and spin-down power. We discuss this in terms of both the pulsar emission model and the observational bias.


Persistent Identifierhttp://hdl.handle.net/10722/328261
ISSN
2023 Impact Factor: 4.8
2023 SCImago Journal Rankings: 1.905
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLee, J-
dc.contributor.authorHui, CY-
dc.contributor.authorTakata, J-
dc.contributor.authorKong, AKH-
dc.contributor.authorTam, PHT-
dc.contributor.authorLi, KL-
dc.contributor.authorCheng, KS-
dc.date.accessioned2023-06-28T04:40:35Z-
dc.date.available2023-06-28T04:40:35Z-
dc.date.issued2023-02-01-
dc.identifier.citationAstrophysical Journal, 2023, v. 944, n. 2, p. 225:1-25-
dc.identifier.issn0004-637X-
dc.identifier.urihttp://hdl.handle.net/10722/328261-
dc.description.abstract<p>We have performed a systematic study of the rotational, orbital, and X-ray properties of millisecond pulsars (MSPs) in globular clusters (GCs) and compared their nature with those of the MSPs in the Galactic field (GF). We found that GC MSPs generally rotate slower than their counterparts in the GF. Different from the expectation of a simple recycling scenario, no evidence for the correlation between the orbital period and the rotation period can be found in the MSP binaries in GCs. There is also an indication that the surface magnetic field of GC MSPs is stronger than those in the GF. All these suggest dynamical interactions in GCs can alter the evolution of MSPs/their progenitors, which can leave an imprint on their X-ray emission properties. While the MSPs in both GF and GCs have similar distributions of X-ray luminosity and hardness, our sample supports the notion that these two populations follow different relations between the X-ray luminosity and spin-down power. We discuss this in terms of both the pulsar emission model and the observational bias.<br></p>-
dc.languageeng-
dc.publisherAmerican Astronomical Society-
dc.relation.ispartofAstrophysical Journal-
dc.titleA Comparison of Millisecond Pulsar Populations between Globular Clusters and the Galactic Field-
dc.typeArticle-
dc.identifier.doi10.3847/1538-4357/acb5a3-
dc.identifier.hkuros344877-
dc.identifier.volume944-
dc.identifier.issue2-
dc.identifier.spage225:1-25-
dc.identifier.eissn1538-4357-
dc.identifier.isiWOS:000940783500001-
dc.identifier.issnl0004-637X-

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