The influence of a binary nucleus on the structure of planetary nebulae

Details The influence of a binary nucleus on the structure of planetary nebulae The influence of a binary nucleus on the structure of planetary nebulae

Apr 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986azh....63..279k&link_type=abstract

(Astronomicheskii Zhurnal, vol. 63, Mar.-Apr. 1986, p. 279-287) Soviet Astronomy (ISSN 0038-5301), vol. 30, Mar.-Apr. 1986, p. 1

Astronomy and Astrophysics

Astronomy

8

Binary Stars, Nuclei, Planetary Nebulae, Stellar Envelopes, Stellar Rotation, Angular Distribution, Density Distribution, Isophotes, Stellar Mass Ejection

Scientific paper

Formation of planetary nebulae's spatial structures is considered. A simple expression for the angular distribution of density in planetary nebulae is obtained. Bipolar structures are formed effectively in binary systems in which the velocity of the expanding shell around the main star is smaller than the orbital velocity of the satellite. Masses of satellites lie in the range 0.1 - 0.4 M_sun;. The theoretical isophotal contour map for the model of the planetary nebula NGC 3587 is consistent with observational data. It is shown that central stars of planetary nebulae are usually binary systems.

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