Program: GN-2010B-Q-93

The observations proposed here are follow-up observation for data that the SEEDS (Strategic Exploration of Exoplanets and Disks with Subaru) team has obtained with HiCIAO on Subaru. The HiCIAO (High-Contrast Coronographic Imager for Adaptive Optics) was built at the IfA and I am therefore a member of the SEEDS team. The most important goal is to follow-up on our discovery of an illuminated outer disk around LkCa 15 with imaging observations at longer wavelengths (L? at Keck, and Ks at Gemini), which cannot be done with HiCIAO. We also propose to obtain M-band photometry (at Keck) of the triple exoplanet system HR8799 b,c,d to better constrain models of planet evolution, and Ks -band imaging (at Gemini) of newly discovered possible sub-stellar companions of HAT-P-13 and HIP49593, to ascertain common proper motion and to get some ?rst information about the color of these possible companions.