IRAS 07027 - 7934 - The link between OH/IR stars and carbon-rich planetary nebulae

Details IRAS 07027 - 7934 - The link between OH/IR stars and carbon-rich planetary nebulae IRAS 07027 - 7934 - The link between OH/IR stars and carbon-rich planetary nebulae

Mar 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...243l...9z&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 243, no. 1, March 1991, p. L9-L12.

Astronomy and Astrophysics

Astronomy

47

Hydroxyl Emission, Infrared Astronomy Satellite, Infrared Stars, Interstellar Masers, Planetary Nebulae, Wolf-Rayet Stars, Carbon Monoxide, Carbon Stars, Emission Spectra, Line Spectra

Scientific paper

IRAS 07027 - 7934, a young planetary nebula with a (WC11) central star, is found to show a strong 1612 MHz OH maser, as well as weak CO emission. PAH features indicate that the ionized region is carbon-rich. However, the outer region, where the OH maser is situated, is oxygen-rich. The star apparently has transformed from OH/IR star to carbon star within the last 500 yr.

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