2016/09/30 by B. Nadiri Niri, A. Jahan, C. Corda
Physics and Astronomy · #gr-qc
paper · pdf · doi:10.1140/epjc/s10052-016-4545-3
published as EPJC 76, 692 (2016) · 17 pages, final version accepted for publication in European Physical Journal C. A discussion in arXiv:1211.1373 has been partially reviewed
arxiv created 2016/11/27 · arxiv updated 2016/12/20
The R2-gravity contribution to energy loss of a hot plasma due to the gravitational bremsstrahlung is calculated in the linearized theory on the basis of classical Coulomb scattering of plasma constituents in small-angle scattering approximation. The explicit dependence of the gravitational luminosity on the plasma temperature is derived and its relevance to the Einstein gravity is demonstrated. The result when applied to the Sun as a hot plasma, shows very good agreement with available data.