| Name: | Emma Chokar |
| Affiliation: | St. Xavier's College, Mumbai |
| Conference ID : | ASI2024_674 |
| Title : | Evolution of galaxies in groups in Supercluster MSCC-458 |
| Authors : | Emma Jane Chokar3, Prof. Somak Raychaudhury1,2, |
| Authors Affiliation: | 1 Inter-University Centre for Astronomy and Astrophysics Pune 411 007, India
2 Ashoka University New Delhi-110020
3 St. Xavier's College (Autonomous), Mumbai-400001 |
| Mode of Presentation: | Poster |
| Abstract Category : | Galaxies and Cosmology |
| Abstract : | The study was centred on the supercluster MSCC458 and aimed to unravel the evolutionary dynamics of its constituent galaxies. To achieve this, we employed the cross-matching tool in TOPCAT, using data from the Yang catalogue to categorise these galaxies as either group members, non-group galaxies, or clusters. We conducted a comprehensive analysis of key parameters, focusing on specific star formation rates and luminosity functions. This analysis was essential for understanding how the surrounding environments influenced the evolution of these galaxies. Interestingly, we observed that non-group galaxies exhibited a higher specific star formation rate compared to their counterparts in clusters and groups. This phenomenon was attributed to a quenching effect.
Additionally, our findings regarding the luminosity functions of non-group and group galaxies aligned with the expectations established in prior research. Furthermore, we delved into the largest filament within the supercluster to investigate how the galactic environment impacted the galaxies residing within it. Our analysis revealed a notable spike in the star formation rate, occurring at approximately 3-4 Megaparsecs from the centre of Cluster 1. This intriguing increase was a consequence of the narrow in-fall path within the filament, which led to tidal interactions among the galaxies, ultimately driving up their specific star formation rates. |
