A positron-cyclotron maser mechanism for the core emission radio pulsars

Details A positron-cyclotron maser mechanism for the core emission radio pulsars A positron-cyclotron maser mechanism for the core emission radio pulsars

Feb 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...282..467z&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 282, no. 2, p. 467-473

Astronomy and Astrophysics

Astrophysics

3

Masers, Positrons, Pulsar Magnetospheres, Pulsars, Space Plasmas, Stellar Cores, Brightness Temperature, Circular Polarization, Solitary Waves, Stellar Magnetic Fields, Stellar Models

Scientific paper

In an attempt to account for the core emission of radio pulsars, we propose a coherent emission mechanism in which high energy positrons, streaming through the plasma in the magnetopshere of a radio pulsar, can result in an amplification of the low frequency O-mode electromagnetic wave propagating parallel to the magnetic field via wave-particle interaction. The amplification process, which is of a maser type, is direct and efficient. The observational features of core emission, such as high brightness temperature, circular polarization and narrow emission angle with respect to the magnetic axis, can be well explained by this model.

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