Hostname: page-component-7dd5485656-j7khd Total loading time: 0 Render date: 2025-10-31T11:24:20.585Z Has data issue: false hasContentIssue false
  • English
  • Français

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

Published online by Cambridge University Press:  01 December 2006

Igor Chilingarian ,
Philippe Prugniel ,
Olga Sil'chenko  and
Mina Koleva
Igor Chilingarian*
Affiliation:
Sternberg Astronomical Institute, Moscow State University, 13 Universitetsky prospect, Moscow, 119992, Russia Centre de Recherche Astronomique de Lyon, Observatoire de Lyon, 9 Av. Charles André, Saint-Genis Laval, F-69561, France; CNRS, UMR 5574 Observatoire de Paris, LERMA, 61 Ave. de l'Observatoire, Paris, 75014, France
Philippe Prugniel
Affiliation:
Centre de Recherche Astronomique de Lyon, Observatoire de Lyon, 9 Av. Charles André, Saint-Genis Laval, F-69561, France; CNRS, UMR 5574 Observatoire de Paris-Meudon, GEPI, 9 pl. Jules Janssen, Meudon, 92195, France
Olga Sil'chenko
Affiliation:
Sternberg Astronomical Institute, Moscow State University, 13 Universitetsky prospect, Moscow, 119992, Russia
Mina Koleva
Affiliation:
Centre de Recherche Astronomique de Lyon, Observatoire de Lyon, 9 Av. Charles André, Saint-Genis Laval, F-69561, France; CNRS, UMR 5574 Department of Astronomy, St. Kliment Ohridski University of Sofia, 5 James Bourchier Blvd., BG-1164 Sofia, Bulgaria
*
† e-mail: chil@sai.msu.su
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

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 χ2 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.

Keywords

techniques: spectroscopicmethods: data analysisgalaxies: abundances

References

Cappellari, , & Emsellem, 2004, PASP, 116, 138Google Scholar
Chilingarian, I. 2006, PhD Thesis, astro-ph/0611893Google Scholar
Chilingarian, I. et al. 2006, accepted to AstL, astro-ph/0611885Google Scholar
Chilingarian, I. et al. 2007, accepted to MNRAS, astro-ph/0701842Google Scholar
Koleva, , et al. 2006, astro-ph/0602362Google Scholar
Le, Borgne et al. , 2004, A&A, 425, 881Google Scholar
Ocvirk, et al. , 2006, MNRAS, 365, 74Google Scholar
Sargent, et al. , 1977, ApJ, 212, 326CrossRefGoogle Scholar
van, der Marel & Franx, 1993, ApJ, 407, 525Google Scholar
Vazdekis, , & Arimoto, 1999, ApJ, 525, 224CrossRefGoogle Scholar
Worthey, et al. , 1994 ApJS, 94, 687CrossRefGoogle Scholar