Accretion on to strange-matter pulsars

Autores
Benvenuto, Omar Gustavo; Vucetich, Héctor; Horvath, Jorge Ernesto
Año de publicación
1994
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the effects of the accretion of normal matter on to strange-matter pulsar models. It is assumed that, because of the high strangeness barrier, normal matter is inert in contact with Q α matter. For this reason, normal matter accretion is able to form a thick outer layer with densities far above neutron drip. Accretion can make the superfluid quark-alpha Q α a layer disappear by solidification but, for the same reason, a superfluid neutron layer is formed. The fractional moment of inertia of the latter is large enough to fulfil the vortex-creep glitch model requirements. The high rotational stability of millisecond pulsars is discussed in the framework of the strange-matter hypothesis
Facultad de Ciencias Astronómicas y Geofísicas
Facultad de Ciencias Exactas
Materia
Astronomía
accretion
accretion discs
dense matter
equation of state
stars: neutron
pulsars: general
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/145043
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/145043
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Accretion on to strange-matter pulsarsBenvenuto, Omar GustavoVucetich, HéctorHorvath, Jorge ErnestoAstronomíaaccretionaccretion discsdense matterequation of statestars: neutronpulsars: generalWe study the effects of the accretion of normal matter on to strange-matter pulsar models. It is assumed that, because of the high strangeness barrier, normal matter is inert in contact with Q α matter. For this reason, normal matter accretion is able to form a thick outer layer with densities far above neutron drip. Accretion can make the superfluid quark-alpha Q α a layer disappear by solidification but, for the same reason, a superfluid neutron layer is formed. The fractional moment of inertia of the latter is large enough to fulfil the vortex-creep glitch model requirements. The high rotational stability of millisecond pulsars is discussed in the framework of the strange-matter hypothesisFacultad de Ciencias Astronómicas y GeofísicasFacultad de Ciencias Exactas1994-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf690-696http://sedici.unlp.edu.ar/handle/10915/145043enginfo:eu-repo/semantics/altIdentifier/issn/0035-8711info:eu-repo/semantics/altIdentifier/issn/1365-2966info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/266.3.690info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:32:16Zoai:sedici.unlp.edu.ar:10915/145043Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:32:17.014SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Accretion on to strange-matter pulsars
title Accretion on to strange-matter pulsars
spellingShingle Accretion on to strange-matter pulsars
Benvenuto, Omar Gustavo
Astronomía
accretion
accretion discs
dense matter
equation of state
stars: neutron
pulsars: general
title_short Accretion on to strange-matter pulsars
title_full Accretion on to strange-matter pulsars
title_fullStr Accretion on to strange-matter pulsars
title_full_unstemmed Accretion on to strange-matter pulsars
title_sort Accretion on to strange-matter pulsars
dc.creator.none.fl_str_mv Benvenuto, Omar Gustavo
Vucetich, Héctor
Horvath, Jorge Ernesto
author Benvenuto, Omar Gustavo
author_facet Benvenuto, Omar Gustavo
Vucetich, Héctor
Horvath, Jorge Ernesto
author_role author
author2 Vucetich, Héctor
Horvath, Jorge Ernesto
author2_role author
author
dc.subject.none.fl_str_mv Astronomía
accretion
accretion discs
dense matter
equation of state
stars: neutron
pulsars: general
topic Astronomía
accretion
accretion discs
dense matter
equation of state
stars: neutron
pulsars: general
dc.description.none.fl_txt_mv We study the effects of the accretion of normal matter on to strange-matter pulsar models. It is assumed that, because of the high strangeness barrier, normal matter is inert in contact with Q α matter. For this reason, normal matter accretion is able to form a thick outer layer with densities far above neutron drip. Accretion can make the superfluid quark-alpha Q α a layer disappear by solidification but, for the same reason, a superfluid neutron layer is formed. The fractional moment of inertia of the latter is large enough to fulfil the vortex-creep glitch model requirements. The high rotational stability of millisecond pulsars is discussed in the framework of the strange-matter hypothesis
Facultad de Ciencias Astronómicas y Geofísicas
Facultad de Ciencias Exactas
description We study the effects of the accretion of normal matter on to strange-matter pulsar models. It is assumed that, because of the high strangeness barrier, normal matter is inert in contact with Q α matter. For this reason, normal matter accretion is able to form a thick outer layer with densities far above neutron drip. Accretion can make the superfluid quark-alpha Q α a layer disappear by solidification but, for the same reason, a superfluid neutron layer is formed. The fractional moment of inertia of the latter is large enough to fulfil the vortex-creep glitch model requirements. The high rotational stability of millisecond pulsars is discussed in the framework of the strange-matter hypothesis
publishDate 1994
dc.date.none.fl_str_mv 1994-02-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/145043
url http://sedici.unlp.edu.ar/handle/10915/145043
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0035-8711
info:eu-repo/semantics/altIdentifier/issn/1365-2966
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/266.3.690
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
690-696
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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