We present an investigation of the dependence of galaxy kinematics on the environment for a sample of 94 star-forming galaxies at z \sim 0.9 from the ORELSE survey .
ORELSE is a large photometric and spectroscopic campaign dedicated to mapping out and characterizing galaxy properties across a full range of environments in 15 fields containing large-scale structures ( LSSs ) in a redshift range of 0.6 < z < 1.3 .
We constrained the rotation velocity for our kinematic sample in an ORELSE field , containing the SC1604 supercluster , by fitting high-resolution semi-analytical models to the data .
We constructed the stellar-mass/B-band Tully-Fisher relation and found no dependence of the intrinsic scatter on both local and global environment .
Moreover , we compared the stellar-to-dynamical mass ratio ( M _ { \ast } / M _ { dyn } ) of SC1604 galaxies to those residing in less dense local environment by leveraging data from the HR-COSMOS sample .
We found that , at fixed stellar mass , SC1604 galaxies have \sim 30 \% smaller dynamical masses on average .
By comparing the distributions of the galaxy parameters that define M _ { dyn } ( i.e. , circular velocity and the characteristic radius r _ { 2.2 } ) between SC1604 and HR-COSMOS , we found that smaller dynamical masses are mostly caused by smaller r _ { 2.2 } for SC1604 galaxies .
We also observed that SC1604 galaxies in general show \sim 20 \% lower stellar specific angular momentum ( j _ { \ast } ) with respect to the HR-COSMOS sample .
Adopting literature estimates for ( 1 ) the excess rate of galaxy-galaxy mergers in intermediate/high-density environments and ( 2 ) the average amount of j _ { \ast } loss per merger event , we investigated the possibility that galaxy mergers are mainly responsible for the loss of angular momentum in higher density environments .