The “Canonical” White Dwarf Cooling Sequence of M5

Autores
Chen, Jianxing; Ferraro, Francesco R.; Salaris, Maurizio; Cadelano, Mario; Lanzoni, Barbara; Pallanca, Cristina; Althaus, Leandro Gabriel; Cassisi, Santi
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Recently, slowly cooling white dwarfs (WDs) are a new class of WD that have been identified in two globular clusters (namely M13 and NGC 6752), showing a horizontal branch (HB) morphology with an extended blue tail. The cooling rate of these WDs is reduced by stable thermonuclear hydrogen burning in their residual envelope, and they are thought to originate by stars that populate the blue tail of the HB and then skip the asymptotic giant branch phase. Consistently, no evidence of such kind of WDs has been found in M3, a similar cluster with no blue extension of the HB. To further explore this phenomenon, we took advantage of deep photometric data acquired with the Hubble Space Telescope in the near-ultraviolet and investigated the bright portion of the WD cooling sequence in M5, another Galactic globular cluster with HB morphology similar to M3. The normalized WD luminosity function derived in M5 was found to be impressively similar to that observed in M3, in agreement with the fact that the stellar mass distribution along the HB of these two systems is almost identical. The comparison with theoretical predictions is consistent with the fact that the cooling sequence in this cluster is populated by canonical (fast cooling) WDs. Thus, the results presented in this paper provide further support to the scenario proposing a direct causal connection between the slow cooling WD phenomenon and the horizontal branch morphology of the host stellar cluster.
Fil: Chen, Jianxing. Università di Bologna; Italia
Fil: Ferraro, Francesco R.. Università di Bologna; Italia
Fil: Salaris, Maurizio. Faculty Of Engineering And Technology ; Liverpool John Moores University; . Liverpool John Moores University; Reino Unido
Fil: Cadelano, Mario. Università di Bologna; Italia
Fil: Lanzoni, Barbara. Universidad de Bologna; Italia
Fil: Pallanca, Cristina. Universidad de Bologna; Italia
Fil: Althaus, Leandro Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Cassisi, Santi. Istituto Nazionale di Astrofisica; Italia
Materia
Globular star clusters; White dwarf stars
Astrophysics - Astrophysics of Galaxies
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/235533
Acceder
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network_name_str CONICET Digital (CONICET)
spelling The “Canonical” White Dwarf Cooling Sequence of M5Chen, JianxingFerraro, Francesco R.Salaris, MaurizioCadelano, MarioLanzoni, BarbaraPallanca, CristinaAlthaus, Leandro GabrielCassisi, SantiGlobular star clusters; White dwarf starsAstrophysics - Astrophysics of Galaxieshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Recently, slowly cooling white dwarfs (WDs) are a new class of WD that have been identified in two globular clusters (namely M13 and NGC 6752), showing a horizontal branch (HB) morphology with an extended blue tail. The cooling rate of these WDs is reduced by stable thermonuclear hydrogen burning in their residual envelope, and they are thought to originate by stars that populate the blue tail of the HB and then skip the asymptotic giant branch phase. Consistently, no evidence of such kind of WDs has been found in M3, a similar cluster with no blue extension of the HB. To further explore this phenomenon, we took advantage of deep photometric data acquired with the Hubble Space Telescope in the near-ultraviolet and investigated the bright portion of the WD cooling sequence in M5, another Galactic globular cluster with HB morphology similar to M3. The normalized WD luminosity function derived in M5 was found to be impressively similar to that observed in M3, in agreement with the fact that the stellar mass distribution along the HB of these two systems is almost identical. The comparison with theoretical predictions is consistent with the fact that the cooling sequence in this cluster is populated by canonical (fast cooling) WDs. Thus, the results presented in this paper provide further support to the scenario proposing a direct causal connection between the slow cooling WD phenomenon and the horizontal branch morphology of the host stellar cluster.Fil: Chen, Jianxing. Università di Bologna; ItaliaFil: Ferraro, Francesco R.. Università di Bologna; ItaliaFil: Salaris, Maurizio. Faculty Of Engineering And Technology ; Liverpool John Moores University; . Liverpool John Moores University; Reino UnidoFil: Cadelano, Mario. Università di Bologna; ItaliaFil: Lanzoni, Barbara. Universidad de Bologna; ItaliaFil: Pallanca, Cristina. Universidad de Bologna; ItaliaFil: Althaus, Leandro Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Cassisi, Santi. Istituto Nazionale di Astrofisica; ItaliaIOP Publishing2023-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/235533Chen, Jianxing; Ferraro, Francesco R.; Salaris, Maurizio; Cadelano, Mario; Lanzoni, Barbara; et al.; The “Canonical” White Dwarf Cooling Sequence of M5; IOP Publishing; Astrophysical Journal; 950; 2; 6-2023; 1-90004-637XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-4357/acd173info:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/acd173info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:02:51Zoai:ri.conicet.gov.ar:11336/235533instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 12:02:51.388CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The “Canonical” White Dwarf Cooling Sequence of M5
title The “Canonical” White Dwarf Cooling Sequence of M5
spellingShingle The “Canonical” White Dwarf Cooling Sequence of M5
Chen, Jianxing
Globular star clusters; White dwarf stars
Astrophysics - Astrophysics of Galaxies
title_short The “Canonical” White Dwarf Cooling Sequence of M5
title_full The “Canonical” White Dwarf Cooling Sequence of M5
title_fullStr The “Canonical” White Dwarf Cooling Sequence of M5
title_full_unstemmed The “Canonical” White Dwarf Cooling Sequence of M5
title_sort The “Canonical” White Dwarf Cooling Sequence of M5
dc.creator.none.fl_str_mv Chen, Jianxing
Ferraro, Francesco R.
Salaris, Maurizio
Cadelano, Mario
Lanzoni, Barbara
Pallanca, Cristina
Althaus, Leandro Gabriel
Cassisi, Santi
author Chen, Jianxing
author_facet Chen, Jianxing
Ferraro, Francesco R.
Salaris, Maurizio
Cadelano, Mario
Lanzoni, Barbara
Pallanca, Cristina
Althaus, Leandro Gabriel
Cassisi, Santi
author_role author
author2 Ferraro, Francesco R.
Salaris, Maurizio
Cadelano, Mario
Lanzoni, Barbara
Pallanca, Cristina
Althaus, Leandro Gabriel
Cassisi, Santi
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Globular star clusters; White dwarf stars
Astrophysics - Astrophysics of Galaxies
topic Globular star clusters; White dwarf stars
Astrophysics - Astrophysics of Galaxies
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Recently, slowly cooling white dwarfs (WDs) are a new class of WD that have been identified in two globular clusters (namely M13 and NGC 6752), showing a horizontal branch (HB) morphology with an extended blue tail. The cooling rate of these WDs is reduced by stable thermonuclear hydrogen burning in their residual envelope, and they are thought to originate by stars that populate the blue tail of the HB and then skip the asymptotic giant branch phase. Consistently, no evidence of such kind of WDs has been found in M3, a similar cluster with no blue extension of the HB. To further explore this phenomenon, we took advantage of deep photometric data acquired with the Hubble Space Telescope in the near-ultraviolet and investigated the bright portion of the WD cooling sequence in M5, another Galactic globular cluster with HB morphology similar to M3. The normalized WD luminosity function derived in M5 was found to be impressively similar to that observed in M3, in agreement with the fact that the stellar mass distribution along the HB of these two systems is almost identical. The comparison with theoretical predictions is consistent with the fact that the cooling sequence in this cluster is populated by canonical (fast cooling) WDs. Thus, the results presented in this paper provide further support to the scenario proposing a direct causal connection between the slow cooling WD phenomenon and the horizontal branch morphology of the host stellar cluster.
Fil: Chen, Jianxing. Università di Bologna; Italia
Fil: Ferraro, Francesco R.. Università di Bologna; Italia
Fil: Salaris, Maurizio. Faculty Of Engineering And Technology ; Liverpool John Moores University; . Liverpool John Moores University; Reino Unido
Fil: Cadelano, Mario. Università di Bologna; Italia
Fil: Lanzoni, Barbara. Universidad de Bologna; Italia
Fil: Pallanca, Cristina. Universidad de Bologna; Italia
Fil: Althaus, Leandro Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Cassisi, Santi. Istituto Nazionale di Astrofisica; Italia
description Recently, slowly cooling white dwarfs (WDs) are a new class of WD that have been identified in two globular clusters (namely M13 and NGC 6752), showing a horizontal branch (HB) morphology with an extended blue tail. The cooling rate of these WDs is reduced by stable thermonuclear hydrogen burning in their residual envelope, and they are thought to originate by stars that populate the blue tail of the HB and then skip the asymptotic giant branch phase. Consistently, no evidence of such kind of WDs has been found in M3, a similar cluster with no blue extension of the HB. To further explore this phenomenon, we took advantage of deep photometric data acquired with the Hubble Space Telescope in the near-ultraviolet and investigated the bright portion of the WD cooling sequence in M5, another Galactic globular cluster with HB morphology similar to M3. The normalized WD luminosity function derived in M5 was found to be impressively similar to that observed in M3, in agreement with the fact that the stellar mass distribution along the HB of these two systems is almost identical. The comparison with theoretical predictions is consistent with the fact that the cooling sequence in this cluster is populated by canonical (fast cooling) WDs. Thus, the results presented in this paper provide further support to the scenario proposing a direct causal connection between the slow cooling WD phenomenon and the horizontal branch morphology of the host stellar cluster.
publishDate 2023
dc.date.none.fl_str_mv 2023-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/235533
Chen, Jianxing; Ferraro, Francesco R.; Salaris, Maurizio; Cadelano, Mario; Lanzoni, Barbara; et al.; The “Canonical” White Dwarf Cooling Sequence of M5; IOP Publishing; Astrophysical Journal; 950; 2; 6-2023; 1-9
0004-637X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/235533
identifier_str_mv Chen, Jianxing; Ferraro, Francesco R.; Salaris, Maurizio; Cadelano, Mario; Lanzoni, Barbara; et al.; The “Canonical” White Dwarf Cooling Sequence of M5; IOP Publishing; Astrophysical Journal; 950; 2; 6-2023; 1-9
0004-637X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-4357/acd173
info:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/acd173
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.229304

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