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Inverse population synthesis using a dynamical basis

Published online by Cambridge University Press:  13 April 2010

Juan Mateu ,
Gladis Magris  and
Gustavo Bruzual
Juan Mateu
Affiliation:
Universidad de Carabobo, Venezuela email: [email protected]
Gladis Magris
Affiliation:
Centro de investigaciones de Astronomía, CIDA, Venezuela
Gustavo Bruzual
Affiliation:
Centro de investigaciones de Astronomía, CIDA, Venezuela
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Abstract

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We introduce a new inverse population synthesis algorithm (DINBAS3D) which aims to recover the star formation and metallicity histories from galactic spectra. We investigate the use of a dynamical basis of three simple stellar population spectra that is specific for each galaxy. Our goal is to recover a robust star formation history that minimizes degeneracy effects which are very common in high resolution histories methods. In this work, we detail the method and present our findings when we apply DINBAS3D to synthetic spectra with known parameters, we compare our results with similar methods and find good agreement between them.

Keywords

Galaxy: evolution
Type
Poster Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S262: Stellar Populations – Planning for the Next Decade , August 2009 , pp. 388 - 389
Copyright
Copyright © International Astronomical Union 2010

References

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