----- Forwarded message from send mail ONLY to astro-ph ----- [...] Paper: astro-ph/0306216 From: L.V.E. Koopmans <leon@astro.rug.nl> Date: Wed, 11 Jun 2003 01:59:39 GMT (350kb) Title: The Hubble Constant from the Gravitational Lens B1608+656 Authors: L.V.E. Koopmans (Caltech/STScI), T. Treu (Caltech), C.D. Fassnacht (UC Davis), R.D. Blandford (Caltech), G. Surpi (Caltech) Comments: 16 pages, 6 figures, 5 tables; submitted to ApJ \\ We present a refined gravitational lens model of the four-image lens system B1608+656 based on new and improved observational constraints: [...] A combined gravitational-lens and stellar dynamical analysis leads to a value of the Hubble Constant of H_0=75(+7/-6) km/s/Mpc (68 percent CL; Omega_m=0.3, Omega_Lambda=0.7. [...] ----- End of forwarded message from send mail ONLY to astro-ph ----- It's important to note that originally the same group claimed that H0 might be as low as... 61 km/s/Mpc, see: Fassnacht et al. (2002) ApJ, 581, 823 -- Andrzej