Electrodynamic and gravitational effects of proca stresses in astrophysics |
| |
Authors: | George L Murphy Ronald R Burman |
| |
Institution: | (1) Dept. of Physics, The University of Western Australia, Nedlands, Western Australia;(2) Present address: Department of Physics, Luther College, Decorah, Iowa, USA |
| |
Abstract: | If the photon were to have a rest mass near the best present upper limit,m 3×10–53 g, Maxwell's equations would be inapplicable over distances exceeding about 1015 cm, with profound implications for cosmic electrodynamics. This paper deals with electrodynamic and gravitational effects of the non-Maxwellian stresses which would be associated with large-scale magnetic fields in quasi-static plasmas in these circumstances. The existence of moderately dense interstellar gas clouds with relatively strong magnetization shows thatm 10–58 g. General relativity must be used to calculate even the Newtonian gravitational effects of electromagnetic fields, and it is shown here that the Newtonian potential caused by the non-Maxwellian stresses just cancels that caused by the non-Maxwellian energy density. Previous arguments based on the latter alone are therefore invalid. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|