Oral Presentation

Studying kinematics of green valley galaxies with ALMA and MaNGA

Author(s): Yung-Chau Su(NTU), Li-Hwai Lin(ASIAA), Hsi-An Pan(ASIAA)

Presenter: Yung-Chau Su (National Taiwan University)

The "green valley" is a region separating the star-forming sequence and the quiescent population in the SFR-stellar mass diagram, and green valley galaxies are thought to be in a transitional stage between star-forming and quiescent phases. Hence, investigating the physical properties of green valley galaxies plays an important role in understanding the quenching processes. We have conducted the ALMA-MaNGA QUEnching and STar formation survey (ALMaQUEST), which observes 46 MaNGA-selected galaxies with ALMA CO(1-0). The sample consists of starburst(SB), star-forming main sequence (MS), and green valley (GV) galaxies. In this study, with the combination with MaNGA data, we aim to compare the kinematics of both ionized gas and cold gas of each subset of our sample, as well as their dark matter mass distributions from the rotation curves. In this talk, I will present the current status of this project.