Fast Integrated Spectra Analyzer: A New Computational Tool For Age and Reddening Determination of Small Angular Diameter Open Clusters

Abstract

We present a new algorithm called 'Fast Integrated Spectra Analyzer" (FISA) that permits fast and reasonably accurate age and reddening determinations for small angular diameter open clusters by using their integrated spectra in the (3600-7400) Å\ range and currently available template spectrum libraries. This algorithm and its implementation help to achieve astrophysical results in shorter times than from other methods. A brief review is given of the integrated spectroscopic technique applied to the study of open clusters as well as the basic assumptions that justify its use. We describe the numerical algorithm employed in detail, show examples of its application, and provide a link to the code. Our method has successfully been applied to integrated spectroscopy of open clusters, both in the Galaxy and in the Magellanic Clouds, to determine ages and reddenings.

27 Pages, 7 Figures, 1 table. Accepted to PASP

References in corpus (1)

• Age and metallicity of star clusters in the Small Magellanic Cloud from integrated spectroscopy

Cited by in corpus (4)

• Ages of LMC Star Clusters using ASAD${}_2$
• Analyzer of Spectra for Age Determination (ASAD) - Algorithm and Applications
• On the precision of full-spectrum fitting of simple stellar populations. II. The dependence on star cluster mass in the wavelength range 0.3-5.0 $\mu$m
• Determination of reddening and age for ten Large Magellanic Cloud star clusters from integrated spectroscopy