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Circumstellar CA II K Lines in G, K and M Giants and Supergiants
Published online by Cambridge University Press: 08 February 2017
Abstract
Tentative evidence, based on photoelectric observations of the Ca+ emission core, is presented for the existence of circumstellar envelopes in several G and K type “giants.” A significant emission asymmetry in α Tau may imply a chromospheric rather than a circumstellar source.
- Type
- Part C
- Information
- International Astronomical Union Colloquium , Volume 2: Spectrum Formation in Stars With Steady-State Extended Atmospheres , August 1970 , pp. 295 - 299
- Copyright
- Copyright © 1970