简介: |
Abstract: We explore the fast evolutionary pathway from the blue cloud of star-forming galaxies to the red sequence of quiescent massive galaxies based on the local advanced merger (U)LIRGs sample. They are located at the bottom right corner of the u-r color-mass diagrams, with about 95% of them outside the blue cloud. An analysis for the distributions of star formation history indicators (EW(H_alpha)、H_delta absorption lines and D_n(4000) values) on the NUV-r color-mass diagram shows that advanced merger (U)LIRGs could evolve from bottom right to upper right corner within 1 Gyr, which is consistent with the timescale for exhausting the molecular gas reservoir in adv-merger (U)LIRGs. We also investigate the quenching process for massive disk galaxies, as well as the outskirt of local massive early and late type galaxies based on the deep multi-wavelength survey.
Bio: Prof. Xiaoyang Xia is the fellow of the center for Astrophysics, Tianjin Normal University. She graduated from the Beijing Normal University Department of Astronomy(1968), 1979-1982 graduated from Peking University Department of Geophysics. In 1987 she won the first British scholarship support to visit Durham University for one year. Prof. Xiaoyang Xia has bee engaged in the study of the formation and evolution of galaxies, especially for the multi wavelength observations of very bright infrared galaxies. |
