S20A0034abst
S20A0034
High-contrast imaging (e.g., Subaru/HiCIAO and ALMA) to date has revealed that appearances of gap structures in protoplanetary disks differ with an observing wavelength (e.g., NIR and sub-millimeter). It is because radial distributions of dust grain would vary by the grain size, and it is considered to be induced by interaction between a disk and planets. Some theoretical predictions on a relationship between planet mass and gap properties in Β΅m and sub-millimeter wavelength were proposed, but observational constraints have not yet been presented. Here we propose newly available spectro-polarimetric observations with SCExAO+CHARIS to detect both gap structures and young planets in ring-disk systems identified with ALMA. Our goal is to statistically show an observational relationship between gap properties and the planet mass by combining results of proposed CHARIS observations with ALMA archival data. We will statistically explore planet-disk interaction among proposed ring-disk systems and known disks by comparing the theoretical predictions. It is noted that our previous proposal was accepted in S19A, but over half of allocated observations were canceled due to the worse whether condition and TMT problem.
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