THE HUBBLE CONSTANT INFERRED FROM 18 TIME-DELAY LENSES

We present a simultaneous analysis of 18 galaxy lenses with time-delay measurements. For each lens, we derive mass maps using pixelated simultaneous modeling with shared Hubble constant. We estimate the Hubble constant to be 66(-4)(+6) km s(-1) Mpc(-1) (for a flat universe with Omega(m) = 0.3, Omega(A) = 0.7). We have also selected a subsample of five relatively isolated early-type galaxies, and by simultaneous modeling with an additional constraint on isothermality of their mass profiles, we get H-0 = 76(-3)(+3) km s(-1) Mpc(-1).