Spatially resolved galaxy kinematics from hydrodynamic simulations
Abstract
The recent advent of optical/near-infrared integral field spectrographs (IFS) have revealed the internal dynamics of hundreds of star-forming galaxies at 1<z<3. These spatially resolved kinematics provide crucial insights into the formation of galaxy structures, and the assembly histories of galaxies. In parallel, comparing these results with high resolution hydrodynamic simulations can not only inform us the consistency between the theory and observation, but also test our interpretation of IFS data and access future observations/facilities needed to advance our understanding. I will discuss our work to use idealized galaxy merger simulations to determine the timescale over which interaction/merger signatures are visible, and the implications on our interpretation of the merger/disk nature of galaxies that display a smooth velocity gradient. Further, I will discuss our work to derive kinematic properties of simulated galaxies using the zoom-in cosmological simulations from the FIRE project. These results can inform us what might be the physical drivers of an enhanced intrinsic velocity dispersion of high-z star-forming galaxies, an important characteristic of these galaxies from recent large IFS surveys.
- Publication:
-
American Astronomical Society Meeting Abstracts #231
- Pub Date:
- January 2018
- Bibcode:
- 2018AAS...23132806H