Mathematics – Probability
Scientific paper
Apr 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978ap%26ss..54..479s&link_type=abstract
Astrophysics and Space Science, vol. 54, no. 2, Apr. 1978, p. 479-488.
Mathematics
Probability
35
Binary Stars, Pulsars, Radio Sources (Astronomy), Stellar Evolution, Stellar Mass Ejection, Supernova Remnants, Cosmology, Explosions, Mass Transfer, Probability Theory
Scientific paper
An evolutionary scenario is presented whereby a binary system consisting of two normal stars becomes a compact star binary system through a mechanism involving mass transfer. Material is first accreted onto one star, which undergoes a supernova (SN) explosion and leaves behind a compact remnant. The remnant then draws mass from the remaining star, leaving behind a helium core which in turn undergoes SN and becomes a second compact remnant. Attention is given to the second nova, noting asymmetries resulting from uneven mass ejection. The binary pulsar PSR 1913+16 is examined in an effort to obtain empirical support for the scenario. It is suggested that the kick, i.e., ejection velocity, required to produce the observed parameters of the binary pulsar should be larger than 80 kms if the mass of the exploding star is larger than 4 solar masses. The mean survival probability for the binary pulsar system is investigated on the basis of the degree of asymmetry of the explosion.
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