A ground-based KS-band detection of the thermal emission from the transiting exoplanet WASP-4b C. Cáceres, V. D. Ivanov, D. Minniti, A. Burrows, F. Selman, C. Melo, D. Naef, E. Mason and G. Pietrzynski A&A, 530 (2011) A5 Published online: 27 April 2011 DOI: 10.1051/0004-6361/201016231