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The [NII]/Hα calibration of the metallicity of galaxies from Te-based abundances

Published online by Cambridge University Press:  17 July 2013

Yanchun Liang ,
Xu Shao ,
Francois Hammer  and
Shaoying Yin
Yanchun Liang
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China email: ycliang@bao.ac.cn Key Laboratory of Optical Astronomy, NAOC, 20A Datun Rd. Beijing, 100012, China
Xu Shao
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China email: ycliang@bao.ac.cn Key Laboratory of Optical Astronomy, NAOC, 20A Datun Rd. Beijing, 100012, China
Francois Hammer
Affiliation:
GEPI, Observatoire de Paris-Meudon, 92195 Meudon, France
Shaoying Yin
Affiliation:
Department of Physics, College of Technology, Harbin University, Haerbin 150086, China
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Abstract

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We gather a sample of both metal-rich and metal-poor galaxies. Both samples have oxygen abundances estimated from electron temperature (Te). The calibration of the emission-line ratio, N2(≡log([NII]6583/Hα), to oxygen abundances is then re-derived from this combined sample, finding good agreement for the wide metallicity and line-ratio ranges considered.

Keywords

galaxies: abundancesgalaxies: evolutiongalaxies: spiralgalaxies: starburst
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S295: The intriguing life of massive galaxies , August 2012 , pp. 337
Copyright
Copyright © International Astronomical Union 2013 

References

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