Radio-emitting electrons and cosmic ray confinement

Details Radio-emitting electrons and cosmic ray confinement Radio-emitting electrons and cosmic ray confinement

Jun 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977ap%26ss..49..133b&link_type=abstract

Astrophysics and Space Science, vol. 49, no. 1, June 1977, p. 133-143.

Astronomy and Astrophysics

Astronomy

5

Cosmic Rays, Diffusion Coefficient, Galactic Structure, Radio Astronomy, Radio Spectra, Astronomical Models, Electron Energy, Energy Dissipation, Halos, Interstellar Magnetic Fields

Scientific paper

Evidence from radio data obtained at frequencies of 10 to 8000 MHz for steepening of the observed background-radio-continuum spectra in the directions of the galactic Anticenter (A) and Halo Minimum (H) is used to deduce quantitative information on the variation of the magnetic field with distance from the galactic plane. The radio data are analyzed in the framework of the cosmic-ray diffusion model developed by Bulanov and Dogel (1975), and some inferences are drawn regarding the injection spectrum of cosmic-ray electrons as well as their propagation in the Galaxy. The results indicate that: (1) radio-spectrum steepening is centered around 200 MHz in the direction of H and around 330 MHz in the direction of A, implying a lower mean magnetic field toward H and supporting the existence of a radio halo; (2) an injection electron spectrum with a single power law up to the lowest energies cannot explain the radio observations satisfactorily in terms of the diffusion model; and (3) the observed spectral steepening can be satisfactorily understood as being due partly to the deviation from a power-law injection spectrum below a few GeV and partly to the first break arising from electron energy losses in approximately the same energy region.

Affiliated with

Also associated with

No associations

Rating

Radio-emitting electrons and cosmic ray confinement 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 Radio-emitting electrons and cosmic ray confinement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio-emitting electrons and cosmic ray confinement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1593449