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dc.contributor.author
Briozzo, Gaston
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dc.contributor.author
Gallo, Emanuel
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dc.date.available
2024-02-08T12:57:37Z
dc.date.issued
2023-02
dc.identifier.citation
Briozzo, Gaston; Gallo, Emanuel; Analytical expressions for pulse profile of neutron stars in plasma environments; Springer; European Physical Journal C: Particles and Fields; 83; 2; 2-2023; 165-165
dc.identifier.issn
1434-6044
dc.identifier.uri
http://hdl.handle.net/11336/226345
dc.description.abstract
We present an analytical study of light curves of slowly rotating radio pulsars with emphasis on the chromatic effects derived from the presence of a plasma environment; analyzing the effects of the compactness, the metric model, and the electronic plasma density profile. After doing a numerical integration of the trajectories and luminosity curves of pulsars for different spherically symmetric metrics representing the exterior region of the pulsar, we generalize the approximate Beloborodov formula in order to include plasma corrections, obtaining simple analytical expressions for the trajectories and the observed flux and significantly simplifying the calculation of the pulse profiles by a drastic reduction of their computational cost. We study the errors committed by our approximation, comparing the numerical and analytical procedures. We also show how to use the new formalism to model the flux coming from different emission caps, not necessarily circular or antipodal and including the case of ring-shaped hot spots. Finally, we extend the classification introduced by Beloborodov to the case of two distinguishable, non-antipodal, finite size emission caps, showing the respective classification maps and some of the characteristic pulse profiles.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
General Relativity
dc.subject
Gravitational Lenses
dc.subject
Astrophysical Plasma
dc.subject
Neutron Stars
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
Analytical expressions for pulse profile of neutron stars in plasma environments
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-02-07T14:56:59Z
dc.journal.volume
83
dc.journal.number
2
dc.journal.pagination
165-165
dc.journal.pais
Alemania
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dc.description.fil
Fil: Briozzo, Gaston. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
dc.description.fil
Fil: Gallo, Emanuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
dc.journal.title
European Physical Journal C: Particles and Fields
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/10.1140/epjc/s10052-023-11331-2
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1140/epjc/s10052-023-11331-2
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