The dynamical state of bars in cluster dwarf galaxies: The cases of NGC 4483 and NGC 4516

• DOI: 10.48550/arxiv.2312.14017
• Publication Date: 2023-01-01
• Authors: Virginia Cuomo; L. Morelli; J. A. L. Aguerri; E. M. Corsini; Victor P. Debattista; L. Coccato; A. Pizzella; A. Boselli; Chiara Buttitta; A. de Lorenzo-Các...; Laura Ferrarese; D. Gasparri; Y. H. Lee; J. Méndez‐Abreu; Joel Roediger; S. Zarattini
• Keywords: Virgo Cluster; Dwarf spheroidal galaxy; Bar (unit)

Dwarf barred galaxies are the perfect candidates for hosting slowly-rotating bars. They common in dense environments and they have a relatively shallow potential well, making them prone to heating by interactions. When an interaction induces bar formation, should rotate slowly. reside massive centrally-concentrated dark matter halos, which slow down rotation through dynamical friction. While predictions suggest that bars be common, measurements of pattern speed, using Tremaine-Weinberg method, show mostly fast local Universe. We present photometric kinematic characterisation hosted two dwarf Virgo Cluster, NGC 4483 4516. derive length strength Next Generation Survey imaging circular velocity, rate spectroscopy from Multi Unit Spectroscopic Explorer. Including previously studied galaxy IC 3167, we compare properties three with those their counterparts literature. Bars shorter weaker, slightly slower respect galaxies. This could due different formation mechanism and/or large fraction centre it is possible push application method low mass regime.