Cosmic rays guided by a magnetic field - The source of quasar emission lines

Details Cosmic rays guided by a magnetic field - The source of quasar emission lines Cosmic rays guided by a magnetic field - The source of quasar emission lines

Oct 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974a%26a....35..191s&link_type=abstract

Astronomy and Astrophysics, vol. 35, no. 2, Oct. 1974, p. 191-195.

Astronomy and Astrophysics

Astrophysics

4

Astronomical Models, Atomic Collisions, Cosmic Rays, Emission Spectra, Interstellar Magnetic Fields, Quasars, Seyfert Galaxies, Angular Velocity, Doppler Effect, Electromagnetic Absorption, Hydrogen Ions, Line Spectra, Magnetic Effects, Particle Motion, Radial Velocity

Scientific paper

The broad emission lines observed in quasars and in the nuclei of Seyfert galaxies can be produced by way of atomic collision processes, with the characteristic velocities for the atomic events corresponding to the observed Doppler broadening. A model is proposed in which suprathermal particles, guided by a magnetic field and diffusing in pitch angle, interact with a stationary gas to produce the broad emission lines. Profiles predicted by the model are in good agreement with observed emission lines in high redshift quasars and Seyfert galaxy nuclei.

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