Poster Presentation
The influence of the environment on the lopsided galaxy NGC 2276
Presenter: Luka Matijevic (University of Zagreb, Faculty of Science, Bijenicka cesta 32, 10000 Zagreb, Croatia)
NGC 2276, a morphologically disturbed galaxy in the NGC 2300 group, exhibits asymmetric features and an elevated star formation rate inconsistent with its stellar mass, likely influenced by its interaction with the group’s dense intergalactic medium. While both ram pressure stripping and tidal interactions are proposed drivers of its observed properties, their relative contributions remain unresolved. This study presents a multi-wavelength analysis of NGC 2276, combining Hubble Space Telescope (HST) observations tracing stellar population distributions with ancillary data probing ionized, molecular (sub-mm), and non-thermal (radio) gas. By correlating stellar demographics with gas-phase tracers, we aim to disentangle the imprints of tidal forces and ram pressure on the galaxy's stellar and interstellar components. Further, spatially resolved star formation histories derived from ultraviolet-to-infrared photometric analysis are presented to reconstruct the galaxy's evolutionary timeline. These results provide critical constraints on the dominant environmental mechanisms shaping NGC 2276 and offer broader insights into the role of dense environments in driving galaxy evolution.
asiaa.sinica.edu.tw