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dc.creatorOrtega Rodríguez, Manuel
dc.creatorSolís Sánchez, Hugo
dc.creatorArguedas Leiva, José Agustín
dc.creatorWagoner, Robert V.
dc.creatorLevine, Adam
dc.date.accessioned2019-06-11T16:02:12Z
dc.date.available2019-06-11T16:02:12Z
dc.date.issued2015-08-04
dc.identifier.citationhttps://iopscience.iop.org/article/10.1088/0004-637X/809/1/15/metaes_ES
dc.identifier.issn2041-8213
dc.identifier.urihttps://hdl.handle.net/10669/77421
dc.description.abstractDiskoseismology, the theoretical study of normal-mode oscillations in geometrically thin, optically thick accretion disks, is a strong candidate for explaining some quasi-periodic oscillations in the power spectra of many black hole X-ray binary systems. The existence of g-modes, presumably the most robust and visible of the modes, depends on general relativistic gravitational trapping in the hottest part of the disk. As the existence of the required cavity in the presence of magnetic fields has been put into doubt by theoretical calculations, we will explore in greater generality what effect the inclusion of magnetic fields has on the existence of g-modes. We use an analytical perturbative approach on the equations of MHD to assess the impact of such effects. Our main conclusion is that there appears to be no compelling reason to discard g-modes. In particular, the inclusion of a non-zero radial component of the magnetic field enables a broader scenario for cavity non-destruction, especially taking into account recent simulations' saturation values for the magnetic field.es_ES
dc.description.sponsorshipUniversidad de Costa Rica/[829-A3-078]/UCR/Costa Ricaes_ES
dc.description.sponsorshipMinisterio de Ciencia, Tecnología y Telecomunicaciones-Consejo Nacional para Investigaciones Científicas y Tecnológicas/[FI-0204-2012]/MICITT-CONICIT/Costa Ricaes_ES
dc.language.isoen_USes_ES
dc.sourceThe Astrophysical Journal, vol. 809(15), pp. 1-6es_ES
dc.subjectAccretiones_ES
dc.subjectAccretion diskses_ES
dc.subjectBlack hole physicses_ES
dc.subjectHydrodynamicses_ES
dc.subjectMagnetic fieldses_ES
dc.subjectMagnetohydrodynamics (MHD)es_ES
dc.subjectX-rays: binarieses_ES
dc.subject538.72 Campos magnéticos de la tierra sólidaes_ES
dc.titleDo Magnetic Fields Destroy Black Hole Accretion Disk g-Modes?es_ES
dc.typeartículo científicoes_ES
dc.identifier.doi10.1088/0004-637X/809/1/15
dc.description.procedenceUCR::Vicerrectoría de Docencia::Ciencias Básicas::Facultad de Ciencias::Escuela de Físicaes_ES
dc.description.procedenceUCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Básicas::Centro de Investigaciones Geofísicas (CIGEFI)es_ES
dc.identifier.codproyecto829-A3-078


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