Investigation of the cometary nebula Parsamyan 21

Details Investigation of the cometary nebula Parsamyan 21 Investigation of the cometary nebula Parsamyan 21

Nov 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984afz....20..523p&link_type=abstract

(Astrofizika, vol. 20, Nov.-Dec. 1984, p. 523-533) Astrophysics (ISSN 0571-7132), vol. 20, no. 6, May 1985, p. 643-649. Translat

Astronomy and Astrophysics

Astrophysics

1

Nebulae, Spectrophotometry, Absorption Spectra, Brightness Distribution, Distance, Emission Spectra, Line Spectra, Main Sequence Stars

Scientific paper

The results are given of an isodensitometric and spectrophotometric investigation of the cometary nebula P 21 and its associated nucleus. The shape of the isodensities of the nucleus differs from those for normal stars, and in this the nucleus recalls R Mon. A spectral investigation of the nucleus of P 21 made on the basis of observations during 1981-1982 shows that it is a star of the class F2-F5V with an envelope expanding at about 120 km/sec.

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