No CrossRef data available.
Article contents
On the total O/H abundance ratio in Galactic and extragalactic H ii regions
Published online by Cambridge University Press: 23 April 2010
Abstract
To determine the primordial helium abundance and to study the chemical evolution of galaxies it is necessary to derive the total O/H ratio in H ii regions. To determine the total O/H ratio in H ii regions it is necessary to add to the gas-phase component the dust-phase component of O atoms. Based on the Fe/O ratio and other considerations we estimate the dust-phase fraction as a function of O/H.
Keywords
- Type
- Contributed Papers
- Information
- Proceedings of the International Astronomical Union , Volume 5 , Symposium S268: Light Elements in the Universe , November 2009 , pp. 185 - 186
- Copyright
- Copyright © International Astronomical Union 2010