2009
Neutrino trapping in extremely compact objects: I. Efficiency of trapping in the internal Schwarzschild spacetimes
HLEDÍK, Stanislav; Zdeněk STUCHLÍK; Gabriel TÖRÖK and Martin URBANECBasic information
Original name
Neutrino trapping in extremely compact objects: I. Efficiency of trapping in the internal Schwarzschild spacetimes
Authors
Edition
Classical and Quantum Gravity, GB - Spojené království Velké Británie a, 2009, 0264-9381
Other information
Language
English
Type of outcome
Article in a journal
Field of Study
10308 Astronomy
Confidentiality degree
is not subject to a state or trade secret
Impact factor
Impact factor: 3.029
Organization unit
Faculty of Philosophy and Science in Opava
UT WoS
000262585300003
Keywords in English
Q-STARS, EQUATION, MODELS, LIMITS, STATE, MASS
Tags
Tags
International impact
Links
LC06014, research and development project. MSM4781305903, plan (intention).
Changed: 7/12/2020 11:22, Mgr. Pavlína Jalůvková
Abstract
In the original language
Extremely compact objects (9GM/4c(2) < R < 3GM/c(2)) contain trapped null geodesics. We present upper estimates on the efficiency of the neutrino trapping effects obtained in the framework of the simplest model of the internal Schwarzschild spacetime with uniform distribution of energy density, assuming uniform distribution of neutrino emissivity. We introduce a 'global' luminosity trapping coefficient representing influence of the trapping effect on the total neutrino luminosity of the extremely compact objects and cooling trapping coefficients of both 'local' and 'global' kinds characterizing influence of the trapping on the cooling process. It is shown that the trapping of neutrinos can be relevant to moderately or even slightly extremely compact objects.