Mostrar el registro sencillo del ítem
dc.contributor.author
Argüelles, Carlos Raúl
dc.contributor.author
Mavromatos, N. E.
dc.contributor.author
Rueda, J. A.
dc.contributor.author
Ruffini, R.
dc.date.available
2018-08-06T21:37:10Z
dc.date.issued
2016-04
dc.identifier.citation
Argüelles, Carlos Raúl; Mavromatos, N. E.; Rueda, J. A.; Ruffini, R.; The role of self-interacting right-handed neutrinos in galactic structure; IOP Publishing; Journal of Cosmology and Astroparticle Physics; 2016; 4; 4-2016; 1-33
dc.identifier.issn
1475-7516
dc.identifier.uri
http://hdl.handle.net/11336/54357
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
IOP Publishing
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Cosmological Neutrinos
dc.subject
Dark Matter Theory
dc.subject
Quantum Field Theory on Curved Space
dc.subject
Rotation Curves of Galaxies
dc.subject.classification
Astronomía
dc.subject.classification
Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
The role of self-interacting right-handed neutrinos in galactic structure
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-08-06T17:42:09Z
dc.journal.volume
2016
dc.journal.number
4
dc.journal.pagination
1-33
dc.journal.pais
Reino Unido
dc.journal.ciudad
Bristol
dc.description.fil
Fil: Argüelles, Carlos Raúl. International Center for Relativistic Astrophysics Network; Italia. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Mavromatos, N. E.. Cern - European Organization For Nuclear Research; Suiza. King’s College London; Reino Unido
dc.description.fil
Fil: Rueda, J. A.. International Center for Relativistic Astrophysics Network; Italia. Università degli studi di Roma ; Italia
dc.description.fil
Fil: Ruffini, R.. International Center for Relativistic Astrophysics Network; Italia. Università degli studi di Roma ; Italia
dc.journal.title
Journal of Cosmology and Astroparticle Physics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1088/1475-7516/2016/04/038
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/1475-7516/2016/04/038/meta
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1502.00136
Archivos asociados