Dynamical Systematics for Time Delay Lenses and the Impact on the Hubble Constant

R. Forés-Toribio, C. S. Kochanek, J. A. Muñoz

While time-delay lenses can independently probe $H_0$, the estimates are degenerate with the convergence of the lens near the Einstein radius. Velocity dispersions, $\sigma$, can be use…