Abstract Details

Name: Koshy George
Affiliation: Ludwig-Maximilians-Universität München, 80539
Conference ID: ASI2021_168
Title : Bar quenching as a possible formation mechanism for passive disk galaxies in the local Universe
Authors and Co-Authors : Koshy George (Ludwig-Maximilians-Universität München), Prajwel Joseph (Indian Institute of Astrophysics), Chayan Mondal (Indian Institute of Astrophysics), Smitha Subramanian (Indian Institute of Astrophysics), Annapurni Subramaniam (Indian Institute of Astrophysics), K. T. Paul (Christ University)
Abstract Type : Poster
Abstract Category : Extragalactic Astronomy
Abstract : Galaxies in the local Universe can be classified as star-forming or passive based on the rate at which stars are being formed from the gas reservoir available. Several theoretical scenarios have been proposed, which alone or in tandem can convert an active star-forming galaxy to a passive galaxy. Many recent N-body/hydrodynamical simulations of galaxy formation and evolution show the importance of dynamical effects from the action of stellar bars controlling the star formation in the bar region of disk galaxies. Based on a detailed multi-wavelength analysis of barred disk galaxies in the local Universe, we found observational evidence for this scenario. Our study suggests that the redistribution of gas, due to the dynamical effects of the stellar bar, makes the bar region devoid of fuel for star formation and eventually quenches star formation in the bar region.