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A Unified Model for the Radio and Optical Images and Spectra of Nova V1974 Cyg 1992

Published online by Cambridge University Press:  12 April 2016

R. M. Hjellming*
Affiliation:
National Radio Astronomy Observatory†, Socorro, NM 87801-0387, USA

Abstract

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A model for nova shells which is a combination of wind model and spherically symmetric, Hubble flow shell model, fits the light curve, image, and nebular line shape data for Nova V1974 Cyg 1992. The results show that after outburst the shell is ejected by a wind-like outflow with a linear velocity gradient, and that after 180 d this outflow stops. The shape of the elliptical inner boundary at this time determines the subsequent emission measure structure seen in images, light curves, and nebular line profiles.

Type
Novae & Symbiotic Stars
Copyright
Copyright © Kluwer 1996

References

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