(Proposal ID) S13A-060 (PI) Seifahrt, Andreas (Proposal Title) A near Infrared Radial Velocity survey around the lowest mass stars (Abstract) We propose to continue our near Infrared (nIR) high-precision radial velocity survey for planets around the lowest mass stars in the solar neighborhood. We have equipped IRCS with a NH_3 gas absorption cell that enables the measurement of high-precision radial velocities at the 30m s^-1 level even with the spectral resolving power of IRCS (R=20,000). We have selected ~60 targets of spectral types M4.0 to L0 with masses ranging from 0.2M_sun to 0.08M_sun, a region unexplored by existing planet searches. The obtainable precision using our cell will allow us to detect Saturn mass planets in short and intermediate period orbits around all of our low-mass targets. We complement the main target sample with some G-type giants whose low surface gravity makes them suitable for measurements in the nIR. This proposed survey will complement a study in the southern hemisphere, using CRIRES equipped with a similar gas cell. Both surveys mark a breakthrough because the studied objects are too faint and/or exhibit too much activity induced radial velocity jitter for optical radial velocity surveys. Planets identified around low mass stars are the most suitable for follow up studies and are an important constraint for theories of planet formation and evolution.