High-velocity outflows in post-Main-Sequence nebulae

Details High-velocity outflows in post-Main-Sequence nebulae High-velocity outflows in post-Main-Sequence nebulae

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.171..163c&link_type=abstract

(IAU, European Regional Astronomy Meeting, 11th, La Laguna, Spain, July 3-8, 1989) Astrophysics and Space Science (ISSN 0004-640

Astronomy and Astrophysics

Astrophysics

6

Astronomical Spectroscopy, Gas Flow, Main Sequence Stars, Galactic Structure, H I Regions, Helium, Hydrogen, Nebulae, Nitrogen

Scientific paper

Observations of three post-Main-Sequence nebulae, taken with an intermediate dispersion spectrograph mounted on the 2.5 m Isaac Newton Telescope (La Palma, Spain), are presented. The results reveal evidence for high-velocity outflows of about 100 km/s in the primary shells, and very much greater velocities in the cores, while in one unique source, there also appears to be evidence for a core WC binary.

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