Oral Presentation

Observing galaxy pairs using MaNGA

Yuan Fang-Ting, Shen Shiyin, Jiang Chunyan (Shanghai Astronomical Observatory), Lin Lihwai, Ryan Keenan (ASIAA)

The galaxy close pairs are ideal targets to study the galaxy merging process. With IFS measurements, the dynamical processes of the dark matter, star and gas components can be separated and spatially resolved for galaxy pairs. On the other hand, with IFS measurements on a large sample of various types of galaxy pairs, we can systematically study different types of mergers (e.g. minor/major mergers, dry/wet mergers) and the merging at different stages.

MaNGA is a benchmark IFS survey aiming to observe a sample of 10,000 galaxies across a wide dynamic range in stellar mass and environment with uniform radial coverage. We have selected a sample of galaxy pairs for MaNGA observation and have been awarded ~100 IFU in the ancillary program. I will talk about our sample selection strategy and the science about pairs that can be done using MaNGA IFS.