The stellar populations of the AGN/Starburst galaxy NGC7582
T.V. Ricci (1), J.E. Steiner (1), R.B. Menezes (1), A. Garcia-Rissmann, (2), R. Cid Fernandes (3) ((1) IAG-USP, (2) Gemini Observatory, (3) UFSC)
TL;DR
This study analyzes the stellar populations in the starburst/AGN galaxy NGC 7582 using Gemini South data, revealing recent star formation, a Wolf-Rayet cluster, and the dominant contribution of young stars to the galaxy's light.
Contribution
It provides detailed stellar population modeling of NGC 7582, highlighting recent starburst activity and the presence of a Wolf-Rayet cluster, which are novel insights for this galaxy.
Findings
90% of light from stars younger than 1 billion years
A starburst occurred about 6 million years ago
Detection of a Wolf-Rayet star cluster
Abstract
NGC 7582 is defined as a Starburst/AGN galaxy, since its optical and X-Ray spectra reveal both characteristics. In this work, we show the results of a stellar population modeling in a datacube taken with the Gemini South telescope. We found that 90% of the light in the field of view is emitted by stars that are less than 1 billion years old. A strong burst occurred about 6 million years ago and has nearly solar metallicity. We also found a Wolf-Rayet cluster.
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