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The Dynamics of the AG Car Ring Nebula

Published online by Cambridge University Press:  03 August 2017

Linda J. Smith
Linda J. Smith*
Affiliation:
Department of Physics and Astronomy University College London Gower Street, London WC1E 6BT England

Abstract

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High spatial (2”) and spectral (7 km s–1) resolution observations of the ring nebula surrounding the LBV star AG Carinae are presented. The data, covering Hα and [NII], were obtained with the UCL echelle spectrograph on the AAT and cover 4 radial slit positions centred on AG Car. The nebular motions are clearly resolved and show that it is a single shell expanding at 70 km s–1 which was ejected from the central star some 7 000 years ago. The data also reveal the presence of a high velocity (~ 83 km s–1) bipolar mass outflow which has distorted the northeastern back edge of the shell.

Type
Session VI. Enrichment
Information
Symposium - International Astronomical Union , Volume 143: Wolf–Rayet Stars and Interrelations with other Massive Stars in Galaxies , 1991 , pp. 385 - 390
Copyright
Copyright © Kluwer 1991 

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