| Name: | Dhanush S R |
| Affiliation: | Research Student, Indian Instituite Of Astrophysics |
| Conference ID : | ASI2022_454 |
| Title : | How does galaxy interactions impact cluster formation? - A case study using the Magellanic Clouds |
| Authors : | Dhanush.S.R, Dr. Annapurni Subramaniam, Prasantha Nayak |
| Abstract Type: | Poster |
| Abstract Category : | Stars, ISM and Galaxy |
| Abstract : | The Magellanic clouds consists of a pair of irregular type of galaxies, Large Magellanic cloud(LMC) and Small Magellanic Cloud(SMC). It have had interactions with each other as well as with our galaxy, the Magellanic Bridge(MB) and Magellanic Stream(MS) are considered as the signatures of these interactions. The interactions must have triggered star formation in both galaxies.Thus a comprehensive analysis of cluster population in MCs could indicate the structural evolution due to galaxy mergers. Age-dating and spatio-temporal mapping of cluster formation episodes can be used as a pointer to such events in galaxies similar to MCs. In this study, the GAIA EDR3 data is used to characterise the cluster population in the MCs. The cluster coordinates in MCs is obtained mostly from Bica’s(2020) catalogue. Around 3740 clusters are considered for the analysis. We developed a query to obtain data around 5arcmin of the clusters from the Gaia archive. An automated algorithm have been implemented to detect isolated clusters, double clusters as well as groups of clusters. We developed a statistical algorithm to remove filed stars from the cluster region using multiple field regions and to assign membership probability to the cluster members. The clusters are characterized using the members with high proper motion probability. The spatio-temporal formation and distribution of these large number of clusters will map the directional properties of star formation in MCs. Apart from the morphologies, spatial scale as well as mass range of the clusters will be used to study the effect of interaction on the cluster properties. The goal is to track star formation history of the MCs, and hence to understand how an interacting galaxy-system such as the MCs will play a key role in understanding the impact of interaction on cluster formation in extragalactic counterparts. |