On Energy- Angular Momentum- Loss and Pulsar Spark Gaps

Details On Energy- Angular Momentum- Loss and Pulsar Spark Gaps On Energy- Angular Momentum- Loss and Pulsar Spark Gaps

2010-11-30

arxiv.org/abs/1011.6562v1

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

2 pages, 1 figure, to appear in the proceedings of the "Pulsar Conference 2010", Chia, Italy, 10-15 October 2010

Scientific paper

The neutron star spin down imposes a balance between the energy and angular momentum (E/L) losses of a pulsar. This translates into constraints on the region of emission. The E/L balance may be cogent in discriminating among the models of gamma-ray production. Hence, models which require the release of the entire luminosity at the polar caps should be excluded. Also models where the radiative zone is well inside the speed of light radius have some difficulties. It is argued that a local unbalance of E/L should generate a global instability of the magnetosphere, possibly quenching the emission at the polar caps.

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