On black widow evolutionary scenarios for binary neutron stars

Details On black widow evolutionary scenarios for binary neutron stars On black widow evolutionary scenarios for binary neutron stars

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...335l..67e&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 335, Dec. 15, 1988, p. L67-L70. NASA-supported research.

Physics

17

Binary Stars, Neutron Stars, Stellar Evolution, Stellar Physics, X Ray Binaries, Gamma Rays, Stellar Mass Ejection, Stellar Winds, Synchrotron Radiation

Scientific paper

The scenario whereby the pulsar 1957 + 20 ablates its companion by soft gamma-ray synchrotron emission (Ruderman et al., 1988) is critically examined, with particular regard to how the outflowing material, beginning at photospheric temperatures, is heated through the cooling barrier to coronal temperatures. Assuming the conductivity to be at most the Spitzer value, this consideration is found to constrain the mass flux more than two orders of magnitude more severely than merely considering cooling near the sonic point. This would imply that the ablation scenario fails by a large margin, even if the emission from the pulsar is beamed along the orbital plane.

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