Stellar populations in the center of barred spiral galaxies

TL;DR

This study uses high-resolution integral field spectroscopy to analyze the stellar populations in the central regions of barred spiral galaxies, providing insights into their star formation history.

Contribution

It demonstrates the use of OASIS spectrometer data to resolve structures and analyze stellar populations in galaxy centers, highlighting the need for combined chemical and synthesis models.

Findings

Identification of diverse stellar structures in galaxy centers

Insights into the star formation history of barred spirals

Emphasis on combining models for evolutionary analysis

Abstract

We show observations obtained with the integral field spectrometer OASIS for the central regions of a sample of barred galaxies. The high spatial resolution of the instrument allows to distinguish various structures within these regions as defined by stellar populations of different ages and metallicities. From these data we obtain important clues about the star formation history. But we advise that, in order to obtain adequately the evolutionary sequence, a combination of chemical and synthesis models may be necessary.