Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-12T08:28:23.322Z Has data issue: false hasContentIssue false
  • English
  • Français

Shock waves - The trigger mechanism of SiO masers in circumstellar envelopes of cool giants and supergiants

Published online by Cambridge University Press:  04 August 2017

Astrid Heske
Astrid Heske*
Affiliation:
Hamburger Sternwarte Gojenbergsweg 112 2050 Hamburg 80, F.R.G.

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Circumstellar envelopes of cool giants and supergiants are composed of different parts which can be observed through characteristic spectral features. One is SiO-maseremission which is typically found in Miras and some semi-regular variable supergiants. These masers are thought to originate in those parts of the upper atmosphere or lower circumstellar envelope where still no mass-loss takes place. Location and trigger mechanism was still not definitely clear.

Type
Circumstellar Shells and Envelopes
Information
Symposium - International Astronomical Union , Volume 122: Circumstellar Matter , 1987 , pp. 253 - 254
Copyright
Copyright © Reidel 1987 

References

Elitzur, M. 1980, Astrophys. J. 240, 553 CrossRefGoogle Scholar
Willson, L.A. and Bowen, G.W. 1986, Third Trieste Workshop on the Relationship between Chromospheric/Coronal Heating and Mass-Loss; eds. Stalio, R. and Zirker, J., pp. 127 Google Scholar