The role of self-interacting right-handed neutrinos in galactic structure

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...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Argüelles, Carlos Raúl, Mavromatos, N. E., Rueda, J. A., Ruffini, R.
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2016
Materias:
Ciencias Astronómicas
Física
Cosmological neutrinos
Dark matter theory
Quantum field theory on curved space
Rotation curves of galaxies
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/101748
https://ri.conicet.gov.ar/11336/54357
http://iopscience.iop.org/article/10.1088/1475-7516/2016/04/038/meta
https://arxiv.org/abs/1502.00136
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-101748
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Física
Cosmological neutrinos
Dark matter theory
Quantum field theory on curved space
Rotation curves of galaxies
spellingShingle Ciencias Astronómicas
Física
Cosmological neutrinos
Dark matter theory
Quantum field theory on curved space
Rotation curves of galaxies
Argüelles, Carlos Raúl
Mavromatos, N. E.
Rueda, J. A.
Ruffini, R.
The role of self-interacting right-handed neutrinos in galactic structure
topic_facet Ciencias Astronómicas
Física
Cosmological neutrinos
Dark matter theory
Quantum field theory on curved space
Rotation curves of galaxies
description 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.
format Articulo
Preprint
author Argüelles, Carlos Raúl
Mavromatos, N. E.
Rueda, J. A.
Ruffini, R.
author_facet Argüelles, Carlos Raúl
Mavromatos, N. E.
Rueda, J. A.
Ruffini, R.
author_sort Argüelles, Carlos Raúl
title The role of self-interacting right-handed neutrinos in galactic structure
title_short The role of self-interacting right-handed neutrinos in galactic structure
title_full The role of self-interacting right-handed neutrinos in galactic structure
title_fullStr The role of self-interacting right-handed neutrinos in galactic structure
title_full_unstemmed The role of self-interacting right-handed neutrinos in galactic structure
title_sort role of self-interacting right-handed neutrinos in galactic structure
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/101748
https://ri.conicet.gov.ar/11336/54357
http://iopscience.iop.org/article/10.1088/1475-7516/2016/04/038/meta
https://arxiv.org/abs/1502.00136
work_keys_str_mv AT arguellescarlosraul theroleofselfinteractingrighthandedneutrinosingalacticstructure
AT mavromatosne theroleofselfinteractingrighthandedneutrinosingalacticstructure
AT ruedaja theroleofselfinteractingrighthandedneutrinosingalacticstructure
AT ruffinir theroleofselfinteractingrighthandedneutrinosingalacticstructure
AT arguellescarlosraul roleofselfinteractingrighthandedneutrinosingalacticstructure
AT mavromatosne roleofselfinteractingrighthandedneutrinosingalacticstructure
AT ruedaja roleofselfinteractingrighthandedneutrinosingalacticstructure
AT ruffinir roleofselfinteractingrighthandedneutrinosingalacticstructure
bdutipo_str Repositorios
_version_ 1764820440201560065

Ejemplares similares