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Relations of stellar mass and electron temperature-based metallicity of star-forming galaxies in wide mass range

Published online by Cambridge University Press:  06 January 2014

Weibin Shi ,
Yanchun Liang  and
Francois Hammer
Weibin Shi
Affiliation:
Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China, email: [email protected] School of Space Science and Physics, Shandong University at Weihai, Weihai 264209, China
Yanchun Liang
Affiliation:
Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China, email: [email protected]
Francois Hammer
Affiliation:
GEPI, Observatoire de Paris, Section de Meudon, 92195 Meudon, France
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Abstract

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We gather a sample of both metal-rich and low metallicity galaxies. Both of them have oxygen abundances estimated from electron temperature (Te). They spread in a wide stellar mass range from 106M⊙ to 1011M⊙. Then, a consistent relation of stellar mass and metallicity are derived from them for such wide range of stellar masses. This relation also shows clearly the discrepancy of Te-based oxygen abundances from those derived from the strong-line method.

Keywords

galaxies: abundancesgalaxies: evolutiongalaxies: statistics
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Symposium S298: Setting the scene for Gaia and LAMOST , May 2013 , pp. 438
Copyright
Copyright © International Astronomical Union 2014 

References

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