Optical Integral Field Spectroscopy of NGC 5850

TL;DR

This study uses optical integral field spectroscopy to analyze the central region of galaxy NGC 5850, revealing ionization mechanisms, star-forming regions, and complex gas kinematics influenced by a secondary bar.

Contribution

It provides new insights into the ionization sources, star formation, and gas dynamics in the double-barred galaxy NGC 5850 using VIMOS observations.

Findings

Confirmed LINER ionization at the galaxy's core.

Identified two star-forming regions near the center.

Detected complex nuclear gas kinematics likely driven by the secondary bar.

Abstract

Here we present the preliminary results of the analysis of VIMOS observations of the central 4.5 kpc of the double-barred galaxy NGC 5850. We use optical diagnostic diagrams to study the main ionization mecahnism across the field of view confirming the LINER nature in the continuum peak location. Also a star-forming (SF) region is found close to it (0.46 kpc), a second SF region is located east of the center (1.6 kpc). Further the data reveals a complex nuclear gas kinematics which is likely to be dominated by the secondary bar.