A Hubble Space Telescope transit light curve for GJ 436b J. L. Bean, G. F. Benedict, D. Charbonneau, D. Homeier, D. C. Taylor, B. McArthur, A. Seifahrt, S. Dreizler and A. Reiners A&A, 486 3 (2008) 1039-1046 Published online: 09 June 2008 DOI: 10.1051/0004-6361:200810013