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

• DOI: 10.1017/s1743921307007752
• Publication Date: 2007-08-31T08:53:38Z
• Authors: Igor Chilingarian; Philippe Prugniel; Olga Sil'chenko; Mina Koleva
• Keywords: Astrophysics (astro-ph); 0103 physical sciences; FOS: Physical sciences; Astrophysics; 01 natural sciences

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 $��^2$ 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.<br/>2 pages, to appear in the proceedings of IAU Symposium 241 (Stellar Populations as Building Blocks of Galaxies)<br/>