Abstract Details

Name: Saroon S
Affiliation: Indian Institute of Astrophysics
Conference ID: ASI2021_517
Title : U - Shaped Stellar Warp of the Large Magellanic Cloud
Authors and Co-Authors : Saroon S (Indian Institute of Astrophysics), Smitha Subramanian (Indian Institute of Astrophysics)
Abstract Type : Poster
Abstract Category : Extragalactic Astronomy
Abstract : Warps are vertical distortions of stellar and/or gaseous disks of galaxies. One of the proposed scenarios for the formation of warps is the tidal interaction with external galaxies. A recent study identified a stellar warp (directed away from us) in the outer regions of the South-Western disc of the Large Magellanic Cloud. Due to limited spatial coverage of the data, the previous study could not investigate the counterpart of this warp in the North Eastern region, which is essential to obtain a conclusive picture about the nature and origin of this warp. In this work we study the structure of the LMC disk and the nature of the outer warp using the Gaia DR2 and recently released Gaia EDR3 data, which cover the entire Magellanic system. Our study identified the counterpart (for the South Western outer warp) in the North Eastern disc which is also in a direction away from us, suggesting a U-shaped stellar warp in the LMC disk. This U-shaped warp could have formed during the mutual tidal interactions between the Large Magellanic Cloud and the Small Magellanic Cloud.