NBursts: Simultaneous Extraction of Internal Kinematics and Parametrized SFH from Integrated Light Spectra

Abstract

We present a novel approach for simultaneous extraction of stellar population parameters and internal kinematics from the spectra integrated along a line of sight. We fit a template spectrum into an observed one in a pixel space using a non-linear $χ^2$ minimization in the multidimensional parameter space, including characteristics of the line-of-sight velocity distribution (LOSVD) and parametrized star formation history (SFH). Our technique has been applied to IFU and multi-object spectroscopy of low-luminosity early type galaxies.

2 pages, to appear in the proceedings of IAU Symposium 241 (Stellar Populations as Building Blocks of Galaxies)