Eight transit light curves of GJ 436b. The two upper panels are the data at 3.6 μm from 2009 January 9 and 28. The following two were taken at 4.5 μm on 2009 January 17 and 30. The lower four were obtained at 8 μm on 2007 June 29, 2008 July 12, 2009 January 25 and February 2. The left plot displays the raw binned and unbinned data, the middle one the binned data corrected for instrumental systematics, and the right one the binned residuals. Measurements are binned per interval of 7 min. The light curves are shifted along the y-axis for the sake of clarity. The shaded green areas show the transit events.

Eight occultation light curves of GJ 436b. The two upper plots are the data at 3.6 μm from 2008 January 30 and 2011 February 1. The following two were obtained with the 4.5 μm channel on 2008 February 2 and 2011 January 24. The fifth is the light curve at 5.8 μm from 2008 February 5. The last three were taken at 8 μm on 2007 June 30, 2008 June 11, and 13. The left plot displays the raw data, the middle one the corrected data, and the right one the residuals. The shaded green areas show the eclipse events.

Same as Fig. 6 with eight occultation light curves of GJ 436b at 8 μm. They were obtained respectively on 2008 June 16, 19, July 12, 14, 2009 January 27, 29, February 1 and 4.