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@article{43064, author = {Hladík, Jan and Stuchlík, Zdeněk and Urbanec, Martin}, article_location = {US - Spojené státy americké}, article_number = {11}, doi = {http://dx.doi.org/10.1007/s10714-011-1229-z}, keywords = {BLACK-HOLES, STATE, SPACETIMES, GEOMETRY, EQUATION, MODELS, FIELD}, language = {eng}, issn = {0001-7701}, journal = {General Relativity and Gravitation}, title = {Neutrino trapping in braneworld extremely compact stars}, volume = {43}, year = {2011} }
TY - JOUR ID - 43064 AU - Hladík, Jan - Stuchlík, Zdeněk - Urbanec, Martin PY - 2011 TI - Neutrino trapping in braneworld extremely compact stars JF - General Relativity and Gravitation VL - 43 IS - 11 SP - 3163-3190 EP - 3163-3190 SN - 00017701 KW - BLACK-HOLES, STATE, SPACETIMES, GEOMETRY, EQUATION, MODELS, FIELD N2 - Extremely Compact Stars (ECS) contain trapped null geodesics. When such objects enter the evolution period admitting geodetical motion of neutrinos, certain part of neutrinos produced in their interior will be trapped influencing their neutrino luminosity and thermal evolution. We study neutrino trapping in the braneworld ECS, assuming uniform distribution of neutrino emissivity and massless neutrinos. We give the efficiency of the neutrino trapping effects in the framework of the simple model of the internal spacetime with uniform distribution of energy density, and external spacetime described by the Reissner-Nordstrom geometry characterized by the braneworld "tidal" parameter b. For b < 0 the external spacetime is of the black-hole type, while for b> 0 the external spacetime can be of both black-hole and naked-singularity type. Then the ECS surface radius R can be located also above the unstable (outer) photon circular orbit. Such basically new types of the spacetimes strongly alte ER -
HLADÍK, Jan, Zdeněk STUCHLÍK a Martin URBANEC. Neutrino trapping in braneworld extremely compact stars. \textit{General Relativity and Gravitation}. US - Spojené státy americké, 2011, roč.~43, č.~11, s.~3163-3190, 27 s. ISSN~0001-7701. Dostupné z: https://dx.doi.org/10.1007/s10714-011-1229-z.
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