Title: Constraining Dark Matter Profiles from Kinematic Observations
Abstract: The density or mass profiles of dark matter (DM) halos provide important constraints on both the nature of DM and the influence of baryonic processes. Simulations have shown that baryons can leave imprints on halo profiles; in turn, halo profiles may also affect galaxy properties, such as size. I will introduce commonly used methods for modeling stellar and gas kinematics to infer mass profiles. For stellar velocity fields, widely adopted approaches include Jeans anisotropic modeling (JAM) and the Schwarzschild model; for gas kinematics, constraints are typically obtained by modeling rotation curves or spatially integrated line profiles. I will discuss the basic frameworks and assumptions of these techniques. Finally, I will present some observational results on mass profiles, including constraints on the DM fraction, halo density slopes, and concentration parameters.
