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dc.contributor.authorOrellana, Mariana Dominga-
dc.contributor.authorRomero, Gustavo E.-
dc.contributor.authorPellizza González, Leonardo J.-
dc.contributor.authorVidrih, S.-
dc.date.accessioned2019-08-14T17:41:31Z-
dc.date.available2019-08-14T17:41:31Z-
dc.date.issued2007-01-14-
dc.identifier.citationOrellana, Mariana D., Romero, Gustavo E., Pellizza González, Leonardo J. & Vidrih, S. (2007). Very high-energy gamma-ray emission from X-ray transients during major outbursts. EDP Sciences; Astronomy and Astrophysics; 465; 3; 703-709es_ES
dc.identifier.issn0004-6361es_ES
dc.identifier.issn1432-0746es_ES
dc.identifier.urihttps://www.aanda.org/articles/aa/abs/2007/15/aa6238-06/aa6238-06.html-
dc.identifier.urihttps://arxiv.org/abs/astro-ph/0701695-
dc.identifier.urihttp://hdl.handle.net/11336/21951-
dc.identifier.urihttps://rid.unrn.edu.ar/jspui/handle/20.500.12049/2835-
dc.format.extentp. 703-709es_ES
dc.format.mediumimpresoes_ES
dc.format.mediumdigitales_ES
dc.language.isoenges_ES
dc.publisherEDP Scienceses_ES
dc.titleVery high-energy gamma-ray emission from X-ray transients during major outburstses_ES
dc.typeArticuloes_ES
dc.rights.licensehttps://creativecommons.org/licenses/by-nc-sa/4.0/es_ES
dc.description.filiationFil: Orellana, Mariana D. Comision de Investigaciones Científicas; Argentinaes_ES
dc.description.filiationFil: Orellana, Mariana D. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentinaes_ES
dc.description.filiationFil: Orellana, Mariana D. Universidad Nacional de Río Negro; Argentinaes_ES
dc.description.filiationFil: Orellana, Mariana D. Instituto Argentino de Radioastronomia; Argentinaes_ES
dc.description.filiationFil: Romero, Gustavo E. Comisión de Investigaciones Científicas; Argentinaes_ES
dc.description.filiationFil: Romero, Gustavo E. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentinaes_ES
dc.description.filiationFil: Romero, Gustavo E. Instituto Argentino de Radioastronomia; Argentinaes_ES
dc.description.filiationFil: Pellizza González, Leonardo J. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria; Argentinaes_ES
dc.description.filiationFil: Pellizza González, Leonardo J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales.es_ES
dc.description.filiationFil: Pellizza González, Leonardo J. Instituto de Astronomía y Física del Espacio; Argentinaes_ES
dc.description.filiationFil: Vidrih, S. University of Cambridge; Reino Unidoes_ES
dc.subject.keywordX-ray: Binarieses_ES
dc.subject.keywordGamma-Rays: Theoryes_ES
dc.subject.keywordStars: Individual: A0535+26es_ES
dc.type.versioninfo:eu-repo/semantics/acceptedVersiones_ES
dc.subject.materiaAstronomíaes_ES
dc.origin.lugarDesarrolloUniversidad Nacional de Río Negroes_ES
dc.relation.journalissue465es_ES
dc.description.reviewtruees_ES
dc.description.resumenSome high mass X-ray binaries (HMXB) have been recently confirmed as γ-ray sources by ground based Cherenkov telescopes. In this work, we discuss the γ-ray emission from X-ray transient sources formed by a Be star and a highly magnetized neutron star. This kind of systems can produce variable hadronic γ-ray emission through the mechanism proposed by Cheng and Ruderman, where a proton beam accelerated in the pulsar magnetosphere impacts the transient accretion disk. We choose as case of study the best known system of this class: A0535+26. Aims. We aim at making quantitative predictions about the very high-energy radiation generated in Be-X ray binary systems with strongly magnetized neutron stars. Methods. We study the gamma-ray emission generated during a major X-ray outburst of a HMXB adopting for the model the parameters of A0535+26. The emerging photon signal from the disk is determined by the grammage of the disk that modulates the optical depth. The electromagnetic cascades initiated by photons absorbed in the disk are explored, making use of the so-called “Approximation A” to solve the cascade equations. Very high energy photons induce Inverse Compton cascades in the photon field of the massive star. We implemented Monte Carlo simulations of these cascades, in order to estimate the characteristics of the resulting spectrum. Results. TeV emission should be detectable by Cherenkov telescopes during a major X-ray outburst of a binary formed by a Be star and a highly magnetized neutron star. The γ-ray light curve is found to evolve in anti-correlation with the X-ray signal.es_ES
dc.identifier.doihttp://dx.doi.org/10.1051/0004-6361:20066238-
dc.relation.journalTitleAstronomy and Astrophysicses_ES
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