Interacting galaxies hiding into one, revealed by MaNGA
Abstract
Interacting galaxies represent a fundamental tool for investigating the underlying mechanisms that drive galaxy evolution. In order to identify merging systems, high-resolution spectroscopic data are required, especially when the morphology does not show clear galaxy pairs. Here, we present a merging galaxy, MaNGA 1-114955, in which we highlighted the superimposition of two distinct rotating discs along the line of sight. We suggest that we are observing a pre-coalescence stage of a merger. Our results demonstrate how a galaxy can hide another one and the relevance of a multi-component approach for studying ambiguous systems.
- Publication:
-
SF2A-2021: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics
- Pub Date:
- December 2021
- Bibcode:
- 2021sf2a.conf..401M
- Keywords:
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- Galaxy: evolution;
- Galaxy: kinematics and dynamics;
- Galaxies: interactions;
- Techniques: spectroscopy;
- Methods: data analysis