Connecting the angular momentum content of the cosmic web to galaxy kinematics and dynamics
Monday
Abstract details
id
Connecting the angular momentum content of the cosmic web to galaxy kinematics and dynamics
Date Submitted
2019-05-30 12:49:35
Chris
Duckworth
University of St Andrews
Cosmic Web: Bridging Galaxies and Cosmology
Talk
C. Duckworth (St Andrews)
In Duckworth+19, we investigate the relationship of kinematically misaligned galaxies (difference in kinematic PA between stars and Halpha) with their large-scale environment, in the context of halo assembly history.. We investigate the relationship between distances to various cosmic web features and several proxies of halo formation time with present-time gas accretion rate seen in central MaNGA galaxies (https://arxiv.org/abs/1811.06408). I will also discuss the morphological dependence of kinematic misalignment and how comparison to IllustrisTNG could yield things such as merger rate and relaxation timescales.
Finally, current work in IllustrisTNG will also be discussed, concerning how the anisotropy of the cosmic web imprints on the orbits of satellite galaxies moving around the central. To recover the anisotropy in these orbits, we take lessons learned from applications of JAM to stellar clusters and galaxies but with the idea of whole galaxies as tracers.
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