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Prog. Theor. Phys. Vol. 27 No. 1 (1962) pp. 127-132

[ Full Text PDF : FREE ACCESS (338K) ]

On the Origin of Planetary Nebulae

Shirô Sakashita and Yasuo Tanaka

Department of Physics, Hokkaido University, Sapporo

(Received July 24, 1961)

Abstract:

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⊙ respectively. A relation between remnant stars and nuclei of planetary nebulae is also discussed briefly.


URL : http://ptp.ipap.jp/link?PTP/27/127/
DOI : 10.1143/PTP.27.127

[ Full Text PDF : FREE ACCESS (338K) ] Citation:

References:

  1. R. Härm and M. Schwarzschild, Astron. J. 66 (1961), 45.
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Citing Article(s) :

  1. Progress of Theoretical Physics Vol. 30 No. 2 (1963) pp. 170-190 :
    On the Explosion of Type II Supernova
    Noboru Ohyama
  2. Progress of Theoretical Physics Vol. 32 No. 2 (1964) pp. 207-219 :
    Shock Propagation in Inhomogeneous Gases. V
    Toshihisa Ishizuka, Yoshiaki Hashimoto and Yōrō Ōno
  3. Progress of Theoretical Physics Vol. 32 No. 5 (1964) pp. 703-725 :
    Helium Flash in Less Massive Stars
    Daiichiro Sugimoto

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