Probing Populations of Dark Stellar Remnants in the Globular Clusters 47 Tuc and Terzan 5 Using Pulsar Timing

We present a new method to combine multimass equilibrium dynamical models and pulsar timing data to constrainthe mass distribution and remnant populations of Milky Way globular clusters (GCs). We first apply this method to47 Tuc, a cluster for which there exists an abundance of stellar kinematic dat...

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Detalles Bibliográficos
Autores: Smith, Peter J., Hénault-Brunet, V., Dickson, Nolan, Gieles, Mark, Baumgardt, Holger
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/221152
Acceso en línea:https://hdl.handle.net/2445/221152
Access Level:acceso abierto
Palabra clave:Forats negres (Astronomia)
Cúmuls d'estels
Púlsars
Black holes (Astronomy)
Clusters of stars
Pulsars
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spelling Probing Populations of Dark Stellar Remnants in the Globular Clusters 47 Tuc and Terzan 5 Using Pulsar TimingSmith, Peter J.Hénault-Brunet, V.Dickson, NolanGieles, MarkBaumgardt, HolgerForats negres (Astronomia)Cúmuls d'estelsPúlsarsBlack holes (Astronomy)Clusters of starsPulsarsWe present a new method to combine multimass equilibrium dynamical models and pulsar timing data to constrainthe mass distribution and remnant populations of Milky Way globular clusters (GCs). We first apply this method to47 Tuc, a cluster for which there exists an abundance of stellar kinematic data and which is also host to a largepopulation of millisecond pulsars. We demonstrate that the pulsar timing data allow us to place strong constraintson the overall mass distribution and remnant populations even without fitting on stellar kinematics. Our modelsfavor a small population of stellar-mass black holes (BHs) in this cluster (with a total mass of -446+ M 72 75 ), arguing against the need for a large (>2000Me) central intermediate-mass BH. We then apply the method to Terzan 5, aheavily obscured bulge cluster that hosts the largest population of millisecond pulsars of any Milky Way GC andfor which the collection of conventional stellar kinematic data is very limited. We improve existing constraints onthe mass distribution and structural parameters of this cluster and place stringent constraints on its black holecontent, finding an upper limit on the mass in BHs of ∼4000Me. This method allows us to probe the centraldynamics of GCs even in the absence of stellar kinematic data and can be easily applied to other GCs with pulsartiming data, for which data sets will continue to grow with the next generation of radio telescopes.Institute of Physics (IOP)2025202520242025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion26 p.application/pdfhttps://hdl.handle.net/2445/221152Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.3847/1538-4357/ad77bcAstrophysical Journal, 2024, vol. 975, num.2https://doi.org/10.3847/1538-4357/ad77bccc-by (c) Smith, Peter J., et al., 2024http://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:recercat.cat:2445/2211522026-05-29T05:05:01Z
dc.title.none.fl_str_mv Probing Populations of Dark Stellar Remnants in the Globular Clusters 47 Tuc and Terzan 5 Using Pulsar Timing
title Probing Populations of Dark Stellar Remnants in the Globular Clusters 47 Tuc and Terzan 5 Using Pulsar Timing
spellingShingle Probing Populations of Dark Stellar Remnants in the Globular Clusters 47 Tuc and Terzan 5 Using Pulsar Timing
Smith, Peter J.
Forats negres (Astronomia)
Cúmuls d'estels
Púlsars
Black holes (Astronomy)
Clusters of stars
Pulsars
title_short Probing Populations of Dark Stellar Remnants in the Globular Clusters 47 Tuc and Terzan 5 Using Pulsar Timing
title_full Probing Populations of Dark Stellar Remnants in the Globular Clusters 47 Tuc and Terzan 5 Using Pulsar Timing
title_fullStr Probing Populations of Dark Stellar Remnants in the Globular Clusters 47 Tuc and Terzan 5 Using Pulsar Timing
title_full_unstemmed Probing Populations of Dark Stellar Remnants in the Globular Clusters 47 Tuc and Terzan 5 Using Pulsar Timing
title_sort Probing Populations of Dark Stellar Remnants in the Globular Clusters 47 Tuc and Terzan 5 Using Pulsar Timing
dc.creator.none.fl_str_mv Smith, Peter J.
Hénault-Brunet, V.
Dickson, Nolan
Gieles, Mark
Baumgardt, Holger
author Smith, Peter J.
author_facet Smith, Peter J.
Hénault-Brunet, V.
Dickson, Nolan
Gieles, Mark
Baumgardt, Holger
author_role author
author2 Hénault-Brunet, V.
Dickson, Nolan
Gieles, Mark
Baumgardt, Holger
author2_role author
author
author
author
dc.subject.none.fl_str_mv Forats negres (Astronomia)
Cúmuls d'estels
Púlsars
Black holes (Astronomy)
Clusters of stars
Pulsars
topic Forats negres (Astronomia)
Cúmuls d'estels
Púlsars
Black holes (Astronomy)
Clusters of stars
Pulsars
description We present a new method to combine multimass equilibrium dynamical models and pulsar timing data to constrainthe mass distribution and remnant populations of Milky Way globular clusters (GCs). We first apply this method to47 Tuc, a cluster for which there exists an abundance of stellar kinematic data and which is also host to a largepopulation of millisecond pulsars. We demonstrate that the pulsar timing data allow us to place strong constraintson the overall mass distribution and remnant populations even without fitting on stellar kinematics. Our modelsfavor a small population of stellar-mass black holes (BHs) in this cluster (with a total mass of -446+ M 72 75 ), arguing against the need for a large (>2000Me) central intermediate-mass BH. We then apply the method to Terzan 5, aheavily obscured bulge cluster that hosts the largest population of millisecond pulsars of any Milky Way GC andfor which the collection of conventional stellar kinematic data is very limited. We improve existing constraints onthe mass distribution and structural parameters of this cluster and place stringent constraints on its black holecontent, finding an upper limit on the mass in BHs of ∼4000Me. This method allows us to probe the centraldynamics of GCs even in the absence of stellar kinematic data and can be easily applied to other GCs with pulsartiming data, for which data sets will continue to grow with the next generation of radio telescopes.
publishDate 2024
dc.date.none.fl_str_mv 2024
2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/221152
url https://hdl.handle.net/2445/221152
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.3847/1538-4357/ad77bc
Astrophysical Journal, 2024, vol. 975, num.2
https://doi.org/10.3847/1538-4357/ad77bc
dc.rights.none.fl_str_mv cc-by (c) Smith, Peter J., et al., 2024
http://creativecommons.org/licenses/by/3.0/es/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Smith, Peter J., et al., 2024
http://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 26 p.
application/pdf
dc.publisher.none.fl_str_mv Institute of Physics (IOP)
publisher.none.fl_str_mv Institute of Physics (IOP)
dc.source.none.fl_str_mv Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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