Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ap%26ss.154...21a&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 154, no. 1, April 1989, p. 21-88.
Astronomy and Astrophysics
Astrophysics
16
Astronomical Catalogs, Milky Way Galaxy, Planetary Nebulae, Stellar Mass, Classifications, Distance, Scale Height, Star Distribution, Stellar Envelopes, Stellar Evolution
Scientific paper
It is shown that the planetary nebulae can be divided into three types according to the values of the mass of shell and a central star. The criteria are given using which one can determine the mass type of the nebula. The distance scale of each mass-type planetary nebulae is given. The distribution of planetary nebulae in the Galaxy, their formation rate, scale-height and other physical and kinematic characteristics are investigated. A catalogue of planetary nebulae emitting in the ratio range is given.
Amnuél' P. R.
Guseinov Kh. O.
Rustamov Iu. S.
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