NGC 2346 - A bipolar nebula produced by mass-loss from a binary system

Details NGC 2346 - A bipolar nebula produced by mass-loss from a binary system NGC 2346 - A bipolar nebula produced by mass-loss from a binary system

Jan 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983mnras.202..303w&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 202, Jan. 1983, p. 303-315.

Astronomy and Astrophysics

Astronomy

32

Binary Stars, Planetary Nebulae, Stellar Mass Ejection, Stellar Spectra, Abundance, H Alpha Line, Late Stars, Nitrogen, Subdwarf Stars

Scientific paper

NGC 2346 is a bipolar nebula with a high-excitation spectrum, whose obvious central star is of too late a spectral type to account for ionization of the nebula. The forbidden N II radial velocities, H-alpha/forbidden N II line ratios and absolute H-alpha intensities are presented along three slit lengths covering the nebula. Many physical parameters of the nebula have been determined, and they suggest that NGC 2346 may have been formed by mass-loss from a binary star nucleus, one of whose components is a very hot subdwarf star.

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