S18A0102abst

S18A0102

We propose for four nights on Subaru/HDS to obtain high-precision RV observations of four very promising candidate transiting planet systems around spectroscopically confirmed M dwarf stars from the HAT ground-based transit surveys. The proposed observations will allow us to confirm these as planets, measure their masses, and characterize the host stars. Only two transiting giant planets are known around M dwarf stars, so if any of these are confirmed, they would represent a valuable addition to this small sample of planets, which are of great interest for understanding how the properties of planets depends on the host star mass, and which are especially promising targets for atmospheric characterization due to their very deep transits.

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