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New Eclipsing Phenomena of the Central Star in NGC 2346

Published online by Cambridge University Press:  07 August 2017

R. Costero ,
M. Peña ,
W.J. Schuster ,
M. Tapia ,
J. Echevarria  and
J. Fierro
R. Costero
Affiliation:
Instituto de Astronomía, UNAM, Mexico
M. Peña
Affiliation:
Instituto de Astronomía, UNAM, Mexico
W.J. Schuster
Affiliation:
Instituto de Astronomía, UNAM, Mexico
M. Tapia
Affiliation:
Instituto de Astronomía, UNAM, Mexico
J. Echevarria
Affiliation:
Instituto de Astronomía, UNAM, Mexico
J. Fierro
Affiliation:
Instituto de Astronomía, UNAM, Mexico

Extract

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The central star of NGC 2346 is a well known binary with an A-type primary and a hot companion (Méndez and Niemela 1981). The star went through a series of periodic light variations which ceased in 1986 and were interpreted as an eclipse of a dust cloud passing in front of the binary system (e.g. Méndez et al. 1982, Costero et al. 1986). Recently, light variations reappeared with shallower minima compared to the previous eclipse (e.g. Kohoutek et al. 1992).

Type
IV. Planetary Nebulae Connection: Evolution from the AGB
Information
Symposium - International Astronomical Union , Volume 155: Planetary Nebulae , 1993 , pp. 392
Copyright
Copyright © Kluwer 1993 

References

Costero, R., Tapia, M., Méndez, R.H., Echevarria, J., Roth, M., Quintero, A., Barral, J.F. 1986, Rev. Mexicana Astron. Astrof. 13, 149.Google Scholar
Kohoutek, L., Mantegazza, L., Hainaut, O. 1992, Inf. Bull. Var. Stars No. 3694.Google Scholar
Méndez, R.H., Niemela, V.S. 1981, ApJ 250, 240.Google Scholar
Méndez, R.H., Gathier, R., Niemela, V.S. 1982, A&A 116, L5.Google Scholar