On the Origin of Planetary Nebulae

Details On the Origin of Planetary Nebulae On the Origin of Planetary Nebulae

Jan 1962

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1962pthph..27..127s&link_type=abstract

Progress of Theoretical Physics, Vol. 27, No. 1, pp. 127-132

Physics

17

Scientific paper

A hypothesis that planetary nebulae originate from red giants when the helium burning begins in the degenerate helium core is proposed and examined quantitatively. It is assumed that the shock wave is generated by the rapid core expansion which is caused by the removal of degeneracy at the helium core. The propagation of the shock wave is analysed by the quasi-stationary method. The obtained expansion velocity and thrown mass are 95 km/sec and 0.5M_{odot} respectively. A relation between remnant stars and nuclei of planetary nebulae is also discussed briefly.

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