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On the Formation of Hydrogen Emission Lines in Miras
Published online by Cambridge University Press: 12 April 2016
Abstract
We investigate non-LTE effects in the hydrogen recombination zone of Long-Period Variables of Mira type. We propose that the Balmer hydrogen emission lines could be formed in this deep layer. We show how the spectral cyclic variations of Miras could be mimicked with this interpretation. As a result the radius of a Mira in the Balmer transitions could be much smaller than its radius in the molecular absorptions, which are formed in higher layers.
- Type
- Part 2. Poster Papers
- Information
- International Astronomical Union Colloquium , Volume 155: Astrophysical Applications of Stellar Pulsation , 1995 , pp. 419 - 420
- Copyright
- Copyright © Astronomical Society of the Pacific 1995