Fundamental pulsar luminosity

Details Fundamental pulsar luminosity Fundamental pulsar luminosity

Sep 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...224..988m&link_type=abstract

Astrophysical Journal, Part 1, vol. 224, Sept. 15, 1978, p. 988-992.

Astronomy and Astrophysics

Astrophysics

4

Dimensional Analysis, Pulsars, Stellar Luminosity, Charged Particles, Electron Energy, Energy Dissipation, Magnetic Fields, Magnetic Stars, Neutron Stars, Radio Emission, Relativistic Particles, Stellar Models, Stellar Rotation

Scientific paper

A dimensional analysis of pulsar parameters is performed in terms of six dimensionless quantities on the basis of the assumption that the main source of plasma is space-charge-limited flow from the 'polar cap' regions of a rotating magnetized neutron star. The results obtained are evaluated in both the relativistic and the nonrelativistic limits. It is found that most of the power output is in fields rather than particles in both limits and that the power output can be scaled in terms of a fundamental 'luminosity' determined by the mass of positive charge carriers (iron ions, helium ions, or positrons). The relevance of the analysis to pulsars in general, the Crab pulsar in particular, and laboratory pulsed plasma devices is discussed. It is concluded that if magnetic-field control over particles out to the light cylinder is essential for pulsar action, pulsars must be relativistic and must radiate more than 10 to the 28th power erg/s (for iron ions).

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