Planetary Nebula He 2-36: Still Enigmatic, But Getting Less So

Details Planetary Nebula He 2-36: Still Enigmatic, But Getting Less So Planetary Nebula He 2-36: Still Enigmatic, But Getting Less So

Oct 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001apjs..136..735f&link_type=abstract

The Astrophysical Journal Supplement Series, Volume 136, Issue 2, pp. 735-745.

Astronomy and Astrophysics

Astronomy

3

Stars: Binaries: Close, Line: Identifications, Line: Profiles, Planetary Nebulae: Individual (He 2-36, Ngc 2346)

Scientific paper

IUE spectra of He 2-36 indicate that the stellar C IV λ1549 doublet varies in intensity by a factor of 2.5 during a one-year interval. Detection of [Ne IV] λ2424, plus previously known He II and C IV, argue for a hot companion to the cool A2 III nucleus. The C IV emission shows a split profile that strongly resembles the profile (reprocessed in the NEWSIPS format) of the stellar C IV emission of NGC 2346 near phase 0.0 of its well-established 16-day period close binary nucleus. The physical cause for the bifurcation is examined. Numerous other emission lines have been identified in the IUE spectrum of He 2-36.

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