Predetonation lifetimes of Type II supernovae

Details Predetonation lifetimes of Type II supernovae Predetonation lifetimes of Type II supernovae

Oct 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974pasp...86..791b&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 86, Oct. 1974, p. 791-794. Deutsche Forschungsgemeinschaft

Statistics

11

Galactic Structure, Spiral Galaxies, Stellar Mass, Stellar Motions, Supernovae, Orbital Mechanics, Star Distribution, Stellar Evolution, Stellar Orbits, Velocity Distribution

Scientific paper

Since Type II supernovae tend to occur near the inner edges of spiral arms (Moore 1973), an upper limit to the precursor lifetimes, and hence a lower limit to the precursor masses, can be set. Moore derived a limit of 35 solar masses, on the assumption of constant stellar velocity across the arm; this mass is too great to agree with supernova statistics or theoretical predictions. Here we consider the motion of the stars across the arm under the influence of the spiral gravitational field, and find a limit of about 8 solar masses, which does agree with other estimates. However, the computed stellar orbits make it difficult to believe that supernovae are as tightly clustered to the inner edges as claimed by Moore.

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