Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978sval....4..141i&link_type=abstract
(Pis'ma v Astronomicheskii Zhurnal, vol. 4, June 1978, p. 260-265.) Soviet Astronomy Letters, vol. 4, May-June 1978, p. 141-144.
Astronomy and Astrophysics
Astronomy
2
Novae, Photosphere, Solar Eclipses, Stellar Envelopes, Stellar Mass Ejection, Binary Stars, Dwarf Stars, Planetary Rotation, Stellar Models
Scientific paper
The outflow of gas in the extended envelope of Nova Cygni 1975 followed a spiral pattern, so that the geometry of the effective photosphere differs from a figure of revolution. The apparent rotation of this nonaxisymmetric photosphere induces periodic light variations whose period is independent of the size of the photosphere but is sensitive to changes in the density and velocity of the ejected material.
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