A radial velocity study of the planetary nebula nucleus HD 184728 with a cool carbon sequence Wolf-Rayet spectrum

Details A radial velocity study of the planetary nebula nucleus HD 184728 with a cool carbon sequence Wolf-Rayet spectrum A radial velocity study of the planetary nebula nucleus HD 184728 with a cool carbon sequence Wolf-Rayet spectrum

Jul 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...163..326m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 163, no. 1-2, July 1986, p. 326-328. NSERC-DFG-supported research.

Astronomy and Astrophysics

Astrophysics

3

Planetary Nebulae, Radial Velocity, Stellar Spectra, Wolf-Rayet Stars, Astronomical Photography, Carbon Stars, Companion Stars, Cool Stars, Spectrum Analysis

Scientific paper

Radial velocity (RV) observations of the WC9 planetary nebula (PN) nucleus yield no detectable orbital motion. An upper limit for the RV amplitude (K less than or about 3 km/s) implies that if there is a companion with a period of less than or about 1 y, its mass must be below the limit for normal nuclear burning. Its symmetric PN is in line with the lack of a close companion.

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