Unveiling Bar Structures in Galaxy Triplets: AComprehensive Study of Isolated Galaxy Triplets in theLocal Universe

Abstract A comprehensive analysis of barred galaxiesin triplet systems, drawn from the SDSS-based catalogof isolated galaxy triplets composed of 315 triplet systems (945 galaxy members) is presented. The primaryobjective for this study is to investigate the bar fraction (fbar ) within these systems and explore its correlationwith various intrinsic and extrinsic properties of thetriplets. The final sample reveals a bar fraction of 42% with a bar fraction that significantly increases in nearby systems (with smaller redshift) characterized by highervirial mass (Mvir ), lower radial velocities (σ) amongtheir members, and larger angular separations (rp) andharmonic projected distances (rh) between the tripletmembers. Additionally, it has been noticed that the Large Scale Structure (LSS) influences the bar fraction,with fbar decreasing as the distance from the primarygalaxy (G1) to the first neighborhood increases (dNN). Furthermore, fbar decreases as tidal strength generatedby the galaxies in the LSS (QLSS )increases. These findings suggest that both the dynamical environmentand the local interactions within triplet systems significantly impact the abundance of barred structures.This study provides valuable insights into the role of environmental factors in shaping galaxy morphology, particularly in systems with complex gravitational interactions.