Relativistic Pickup of Interstellar Neutrals by Hadronic Jets

Details Relativistic Pickup of Interstellar Neutrals by Hadronic Jets Relativistic Pickup of Interstellar Neutrals by Hadronic Jets

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007apj...664..750g&link_type=abstract

The Astrophysical Journal, Volume 664, Issue 2, pp. 750-760.

Astronomy and Astrophysics

Astronomy

4

Galaxies: Active, Galaxies: Jets, Plasmas, Radiation Mechanisms: Nonthermal

Scientific paper

The relativistic pickup process in active galactic nuclei is investigated with respect to the influence of interstellar neutral atoms under the assumption of a jet plasma consisting of thermally distributed electrons and ions. The ionization length of neutral hydrogen due to charge exchange is much longer than the ionization length from electron-impact ionization. Therefore, the electron-impact ionization is the dominating ionization process also for hadronic jets to generate relativistic pickup ions. Moreover, it is shown that the ionization length for electron impact is 3 orders of magnitude smaller than calculated before.

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