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dc.contributor.author
Rodriguez, Maria Camila
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dc.contributor.author
Ranea Sandoval, Ignacio Francisco
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dc.contributor.author
Chirenti, C.
dc.contributor.author
Radice, D.
dc.date.available
2024-07-17T11:57:41Z
dc.date.issued
2023-08
dc.identifier.citation
Rodriguez, Maria Camila; Ranea Sandoval, Ignacio Francisco; Chirenti, C.; Radice, D.; Three approaches for the classification of protoneutron star oscillation modes; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 523; 2; 8-2023; 2236-2246
dc.identifier.issn
0035-8711
dc.identifier.uri
http://hdl.handle.net/11336/240157
dc.description.abstract
The future detection of gravitational waves (GWs) from a Galactic core-collapse supernova will provide information on the physics inside protoneutron stars (PNS). In this work, we apply three different classification methods for the PNS non-radial oscillation modes: Cowling classification, Generalized Cowling Nomenclature (GCN), and a classification based on modal properties (CBMP). Using PNS models from 3D simulations of core-collapse supernovae, we find that in the early stages of the PNS evolution, typically 0.4 s after the bounce, the Cowling classification is inconsistent, but the GCN and the CBMP provide complementary information that helps to understand the evolution of the modes. In the GCN, we note several avoided crossings as the mode frequencies evolve at early times, while the CBMP tracks the modes across the avoided crossings. We verify that the strongest emission of GWs by the PNS corresponds to the f mode in the GCN, indicating that the mode trapping region alternates between the core and the envelope at each avoided crossing. At later times, approximately 0.4 s after the bounce, the three classification methods present a similar description of the mode spectrum. We use our results to test universal relations for the PNS modes according to their classification and find that the behaviour of the universal relations for f and p modes is remarkably simple in the CBMP.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ASTEROSEISMOLOGY
dc.subject
GRAVITATIONAL WAVES
dc.subject
STARS: NEUTRON
dc.subject
STARS: OSCILLATIONS
dc.subject.classification
Astronomía
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Three approaches for the classification of protoneutron star oscillation modes
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-07-16T12:24:36Z
dc.journal.volume
523
dc.journal.number
2
dc.journal.pagination
2236-2246
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Rodriguez, Maria Camila. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
dc.description.fil
Fil: Ranea Sandoval, Ignacio Francisco. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
dc.description.fil
Fil: Chirenti, C.. University of Maryland; Estados Unidos
dc.description.fil
Fil: Radice, D.. State University of Pennsylvania; Estados Unidos
dc.journal.title
Monthly Notices of the Royal Astronomical Society
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/523/2/2236/7163228
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/mnras/stad1459
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