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dc.date.accessioned 2020-08-10T12:12:04Z
dc.date.available 2020-08-10T12:12:04Z
dc.date.issued 2016-04
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/101748
dc.description.abstract It has been shown previously that the DM in galactic halos can be explained by a self-gravitating system of massive keV fermions ('inos') in thermodynamic equilibrium, and predicted the existence of a denser quantum core of inos towards the center of galaxies. In this article we show that the inclusion of self-interactions among the inos, modeled within a relativistic mean-field-theory approach, allows the quantum core to become massive and compact enough to explain the dynamics of the S-cluster stars closest to the Milky Way's galactic center. The application of this model to other galaxies such as large elliptical harboring massive central dark objects of ∼ 109 Mo is also investigated. We identify these interacting inos with sterile right-handed neutrinos pertaining to minimal extensions of the Standard Model, and calculate the corresponding total cross-section σ within an electroweak-like formalism to be compared with other observationally inferred cross-section estimates. The coincidence of an ino mass range of few tens of keV derived here only from the galactic structure, with the range obtained independently from other astrophysical and cosmological constraints, points towards an important role of the right-handed neutrinos in the cosmic structure. en
dc.language en es
dc.subject Cosmological neutrinos es
dc.subject Dark matter theory es
dc.subject Quantum field theory on curved space es
dc.subject Rotation curves of galaxies es
dc.title The role of self-interacting right-handed neutrinos in galactic structure en
dc.type Articulo es
sedici.identifier.uri https://ri.conicet.gov.ar/11336/54357 es
sedici.identifier.uri http://iopscience.iop.org/article/10.1088/1475-7516/2016/04/038/meta es
sedici.identifier.uri https://arxiv.org/abs/1502.00136 es
sedici.identifier.other https://doi.org/10.1088/1475-7516/2016/04/038 es
sedici.identifier.other arXiv:1502.00136 es
sedici.identifier.other hdl:11336/54357 es
sedici.identifier.issn 1475-7516 es
sedici.creator.person Argüelles, Carlos Raúl es
sedici.creator.person Mavromatos, N. E. es
sedici.creator.person Rueda, J. A. es
sedici.creator.person Ruffini, R. es
sedici.subject.materias Ciencias Astronómicas es
sedici.subject.materias Física es
sedici.description.fulltext true es
mods.originInfo.place Facultad de Ciencias Astronómicas y Geofísicas es
sedici.subtype Preprint es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Journal of Cosmology and Astroparticle Physics es
sedici.relation.journalVolumeAndIssue vol. 2016, no. 4 es

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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Except where otherwise noted, this item's license is described as Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)