The unprecedented light variations of NGC 2346

Details The unprecedented light variations of NGC 2346 The unprecedented light variations of NGC 2346

Dec 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...116l...5m&link_type=abstract

Astronomy and Astrophysics, vol. 116, no. 2, Dec. 1982, p. L5-L8.

Astronomy and Astrophysics

Astrophysics

34

Astronomical Maps, Light Curve, Radio Stars, Stellar Mass Ejection, Bow Waves, Interstellar Matter, Shock Fronts, Stellar Winds

Scientific paper

New spectrograms and photometry of the binary central star of the planetary nebula NGC 2346 have confirmed the variations reported by Kohoutek (1982). It is shown that these variations did not exist before 1981, and the analysis of the new data demonstrates that it is possible to ascribe this drastic change to the passage of a dust cloud in front of the binary system. A tentative model is proposed, and an extrapolation indicates that the eclipse of the binary system must have started in May or June 1981 and must finish in March or April 1983.

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