The binary central star of NGC 2346 and the extinction puzzle

Details The binary central star of NGC 2346 and the extinction puzzle The binary central star of NGC 2346 and the extinction puzzle

Nov 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...250..240m&link_type=abstract

Astrophysical Journal, Part 1, vol. 250, Nov. 1, 1981, p. 240-247.

Other

83

A Stars, Astronomical Spectroscopy, Binary Stars, Interstellar Extinction, Planetary Nebulae, Galactic Structure, Gamma Rays, Periodic Variations, Radial Velocity, Red Shift, Spectral Energy Distribution, Stellar Mass, Stellar Rotation, Stellar Temperature

Scientific paper

New observations of the A-type central star of the planetary nebula NGC 2346 have confirmed that it is a single-lined spectroscopic binary with a period of 16 days. The gamma-velocity of the system is shown to coincide with the nebular velocity; therefore, there is good reason to assume that the binary and the nebula are associated. On the other hand, there is observational evidence that the nebula is more reddened than the A-type star. An explanation based on the bipolar structure of the nebula is discussed.

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