Astronomy and Astrophysics – Astrophysics
Scientific paper
1997-08-27
Phys.Rev. D56 (1997) 3296-3306
Astronomy and Astrophysics
Astrophysics
25 pages, RevTeX, 4 ps figure. To be published in Phys.Rev.D
Scientific paper
10.1103/PhysRevD.56.3296
The low frequency magnetic field spectrum in the primordial plasma is of particular interest as a possible origin of magnetic fields in the universe (e.g., Tajima et al. 1992 and Cable and Tajima 1992). We derive the magnetic field spectrum in the primordial plasma, in particular, at the epoch of primordial nucleosynthesis. The pioneering study of Cable and Tajima (1992) of the electromagnetic fluctuations, based on the Fluctuation-Dissipation Theorem, is extended. Our model describes both the thermal and collisional effects in a plasma. It is based on a kinetic description with the BGK collision term. It is shown that the zero-frequency peak found by Cable and Tajima (1992) decreases. At high frequencies, the blackbody spectrum is obtained naturally without the necessity of the link procedure used by them. At low frequencies ($\omega \leq 4\omega_{pe}$, where $\omega_{pe}$ is the electron plasma frequency) it is shown that the magnetic field spectrum has more energy than the blackbody spectrum in vacuum.
Opher Merav
Opher Reuven
No associations
LandOfFree
The Magnetic Field Spectrum in a Plasma in Thermal Equilibrium in the Epoch of Primordial Nucleosynthesis does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Magnetic Field Spectrum in a Plasma in Thermal Equilibrium in the Epoch of Primordial Nucleosynthesis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Magnetic Field Spectrum in a Plasma in Thermal Equilibrium in the Epoch of Primordial Nucleosynthesis will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-177201