Validation of stellar population and kinematical analysis of galaxies

Abstract

3D spectroscopy produces hundreds of spectra from which maps of the characteristics of stellar populations (age-metallicity) and internal kinematics of galaxies can be derived. We carried on simulations to assess the reliability of inversion methods and to define the requirements for future observations. We quantify the biases and show that to minimize the errors on the kinematics, age and metallicity (in a given observing time) the size of the spatial elements and the spectral dispersion should be chosen to obtain an instrumental velocity dispersion comparable to the physical dispersion.

5 pages, 3 figures, extended version of a poster proceeding to appear in "Science Perspectives for 3D Spectroscopy", eds. M. Kissler-Patig, M. M. Roth and J. R. Walsh, ESO Astrophysics Symposia. (The two last pages with figures are not in the conference proceedings.)

References in corpus (2)

• A Spectroscopic Study of the Ancient Milky Way: F- and G-Type Stars in the Third Data Release of the Sloan Digital Sky Survey
• Evolutionary synthesis of galaxies at high spectral resolution with the code PEGASE-HR

Cited by in corpus (7)

• Age and metallicity gradients in early-type galaxies: A dwarf to giant sequence
• Evolution of dwarf early-type galaxies I. Spatially resolved stellar populations and internal kinematics of Virgo cluster dE/dS0 galaxies
• An analysis of the composite stellar population in M32
• Clocking the assembly of double-barred galaxies with the MUSE TIMER project
• How well can we determine ages and chemical abundances from spectral fitting of integrated light spectra?
• Sigma-drop in galaxies and the sigma-metallicity degeneracy
• Age, metallicity and alpha-elements abundance in stellar population