Josephson pulsars

Details Josephson pulsars Josephson pulsars

Jun 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980ap%26ss..70..173a&link_type=abstract

Astrophysics and Space Science, vol. 70, no. 1, June 1980, p. 173-178.

Astronomy and Astrophysics

Astrophysics

1

Josephson Junctions, Pulsars, Radio Emission, Stellar Models, Alternating Current, Phase Coherence, Protons, Superconductors, Temperature Distribution

Scientific paper

The paper examines an emission mechanism of pulsars based on the ac Josephson effect proposed by Kovalev (1979). Kovalev discusses a possible emission mechanism for pulsars based on the Josephson effect for superconducting proton pairs tunneling through barriers inside a neutron star; a neutron star with such an emission mechanism is called a Josephson pulsar. The probability is small that the neutron-star core is superconducting, that weak links to proton pairs exist, and that a suitable bias of 10 to the -7th can be induced. Also, it is suggested that temperature fluctuations preserve the phase coherence in these links, that the radiation is continuous, and that it can pass through the crust. It is concluded that Kovalev's Josephson pulsar mechanism is virtually impossible.

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