Thermal emission at 3.6-8 $m from WASP-19b: a hot Jupiter without a stratosphere orbiting an active star

D.~R. Anderson, A.~M.~S. Smith, N. Madhusudhan, P.~J. Wheatley, A. Collier Cameron, C. Hellier, C. Campo, M. Gillon, J. Harrington, P.~F.~L. Maxted, D. Pollacco, D. Queloz, B. Smalley, A.~H.~M.~J. Triaud, R.~G. West