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The Effect of the Corotation on the Radial Gradient of Metallicity of Spiral Galaxies

Published online by Cambridge University Press:  09 March 2010

Sergio Scarano Jr  and
Jacques R. D. Lépine
Sergio Scarano Jr
Affiliation:
Instituto de Astronomia, Geofísica e Ciências Atmosféricas da Universidade de São Paulo, CEP 05508-900 São Paulo, SP, Brazil email: scarano@astro.iag.usp.br/jacques@astro.iag.usp.br Southern Astrophysical Research Telescope (SOAR), Cerro Pachon, Chile email: scaranojr@ctio.noao.edu
Jacques R. D. Lépine
Affiliation:
Instituto de Astronomia, Geofísica e Ciências Atmosféricas da Universidade de São Paulo, CEP 05508-900 São Paulo, SP, Brazil email: scarano@astro.iag.usp.br/jacques@astro.iag.usp.br
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Abstract

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The corotation radius in a spiral galaxy is the place where the spiral pattern speed has the same velocity of the rotation curve. By compiling results coming from the literature for 20 spiral galaxies we verified a strong correlation between the radius of the minima or inflections of the metallicity distribution and the corotation radius.

Keywords

galaxies: abundancesdynamicsspiralcorotationmetallicity gradient
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S265: Chemical Abundances in the Universe: Connecting First Stars to Planets , August 2009 , pp. 251 - 252
Copyright
Copyright © International Astronomical Union 2010

References

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