Other
Scientific paper
Aug 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983natur.304..425r&link_type=abstract
Nature (ISSN 0028-0836), vol. 304, Aug. 4, 1983, p. 425-427.
Other
39
Binary Stars, Pulsars, Stellar Evolution, Stellar Mass Accretion, Stellar Mass Ejection, Orbital Elements, Tides
Scientific paper
It is shown analytically that the canonical stability postulate for low-mass binaries can be inaccurate when the secondary component mass is less than 0.02 solar mass. The adjustable evolutionary parameter h is demonstrated to have a value (in terms of the mass flow effects) of 2/3, less than which catastrophic instability and tidal disruption of the secondary might occur. The disrupted secondary would be reduced to a remnant significantly smaller in mass than the earth, and not be observable visually. Additionally, close passage by another star could accelerate or initiate the process. The model is applicable to the pulsar binary PSR1937+214, and is noted not to conflict with spin-up theories.
Ruderman Malvin A.
Shaham Jacob
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