caa a22 4500 445385685 CHVBK 20180317143031.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10714-010-1089-y doi (NATIONALLICENCE)springer-10.1007/s10714-010-1089-y Bernardini A. Departamento de Física, Universidade Federal de São Carlos, PO Box 676, 13565-905, São Carlos, SP, Brazil aut Equilibrium and stability of neutrino lumps as TOV solutions [Elektronische Daten] [A. Bernardini] We report about stability conditions for static, spherically symmetric objects that share the essential features of mass varying neutrinos in cosmological scenarios. Compact structures of particles with variable mass are held together preponderantly by an attractive force mediated by a background scalar field. Their corresponding conditions for equilibrium and stability are given in terms of the ratio between the total mass-energy and the spherical lump radius, M/R. We show that the mass varying mechanism leading to lump formation can modify the cosmological predictions for the cosmological neutrino mass limits. Our study comprises Tolman-Oppenheimer-Volkoff solutions of relativistic objects with non-uniform energy densities. The results leave open some questions concerning stable regular solutions that, to an external observer, very closely reproduce the preliminary conditions to form Schwarzschild black holes. Springer Science+Business Media, LLC, 2010 Equilibrium nationallicence Stability nationallicence TOV solutions nationallicence Neutrino lumps nationallicence Dynamical mass nationallicence General Relativity and Gravitation Springer US; http://www.springer-ny.com 43/1(2011-01-01), 245-260 0001-7701 43:1<245 2011 43 10714 https://doi.org/10.1007/s10714-010-1089-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10714-010-1089-y text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Bernardini A. Departamento de Física, Universidade Federal de São Carlos, PO Box 676, 13565-905, São Carlos, SP, Brazil aut NATIONALLICENCE 773 0- General Relativity and Gravitation Springer US; http://www.springer-ny.com 43/1(2011-01-01), 245-260 0001-7701 43:1<245 2011 43 10714 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer