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dc.creatorOrtega Rodríguez, Manuel
dc.creatorSolís Sánchez, Hugo
dc.creatorÁlvarez García, L.
dc.creatorDodero Rojas, Esteban
dc.date.accessioned2021-11-03T15:08:32Z
dc.date.available2021-11-03T15:08:32Z
dc.date.issued2020
dc.identifier.citationhttps://arxiv.org/abs/1912.09527v1
dc.identifier.issn0035-8711
dc.identifier.issn1365-2966
dc.identifier.urihttps://hdl.handle.net/10669/85030
dc.descriptionVersión preprintes_ES
dc.description.abstractGiven the peculiar and (in spite of many efforts) unexplained quasi-periodic oscillation (QPO) twin peak phenomena in accretion disc psd observations, the present exploratory analytical article tries to inquire deeper into the relationship between discoseismic modes and the underlying driving turbulence in order to assess its importance. We employ a toy model in the form of a Gaussian white noise driven damped harmonic oscillator with stochastic frequency. This oscillator represents the discoseismic mode. (Stochastic damping was also considered, but interestingly found to be less relevant for the case at hand.) In the context of this model, we find that turbulence interacts with disc oscillations in interesting ways. In particular, the stochastic part in the oscillator frequency behaves as a separate driving agent. This gives rise to 3:2 twin peaks for some values of the physical parameters, which we find. We conclude with the suggestion that the study of turbulence be brought to the forefront of disc oscillation dynamics, as opposed to being a mere background feature. This change of perspective carries immediate observable consequences, such as considerably shifting the values of the (discoseismic) oscillator frequencies.es_ES
dc.description.sponsorshipUniversidad de Costa Rica/[805-B6-148]/UCR/Costa Ricaes_ES
dc.language.isoenges_ES
dc.sourceMonthly Notices of the Royal Astronomical Society 492(2)es_ES
dc.subjectAccretiones_ES
dc.subjectAccretion discses_ES
dc.subjectBlack hole physicses_ES
dc.subjectX-rays - binarieses_ES
dc.titleOn twin peak quasi-periodic oscillations resulting from the interaction between discoseismic modes and turbulence in accretion discs around black holeses_ES
dc.typeartículo científico
dc.identifier.doi10.1093/mnras/stz3541
dc.description.procedenceUCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Básicas::Centro de Investigaciones Geofísicas (CIGEFI)es_ES
dc.description.procedenceUCR::Vicerrectoría de Docencia::Ciencias Básicas::Facultad de Ciencias::Escuela de Físicaes_ES
dc.identifier.codproyecto805-B6-148


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