The mass density of electrons and positrons in some models of superluminous supernovae

[摘要] We derived a simple expression for total mass density of electrons and positrons in the region of equation-of-state parameters where electron-positron pairs are dominant by number (as compared with baryons). We estimated the total mass density of electrons and positrons in some models of superluminous supernovae developed by other authors. We found that at least in one model of pulsational pair instability supernova the mass density of electrons and positrons is comparable with the mass density of baryons. This fact can be used to assess the possibility of non-standard gravitational interaction of positrons with electrons and baryons.

[发布机构] FSBI SSC RF ITEP of NRC, Kurchatov Institute, Moscow, Russia^1

[效力级别] 天文学 [学科分类] 天文学(综合)

[关键词] Electron-positron pairs;Equation of state;Gravitational interaction;Mass densities;Simple expression;Total mass density