Planetary nebulae

Details Planetary nebulae Planetary nebulae

Jun 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976mmsai..47..177p&link_type=abstract

(Società Astronomica Italiana, Riunione, 19th, Lecce, Italy, Oct. 3-5, 1975.) Società Astronomica Italiana, Memorie, vol. 47, Ju

Astronomy and Astrophysics

Astrophysics

Astronomical Models, Astrophysics, Infrared Spectra, Planetary Nebulae, Radio Spectra, Astronomical Photography, Chemical Composition, Distance, Evolution, Nuclei, Star Distribution, Stellar Mass Ejection

Scientific paper

Information and research findings on planetary nebulae (PN) are summarized. The article covers the morphology of PN, contrasts types of PN nuclei, and illustrates the galactic distribution of the objects. Distance scales are evaluated and a model is constructed, based on optical spectral data. The chemical composition and radio-frequency spectra of PN are examined, along with the IR spectra. Evidence bearing on the evolution of PN, the nature of stars generating PN, and explosions and ejection of shells associated with PN, are examined.

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