[Speaker1]
Tomonari Michiyama, M1, SOKENDAI, Mitaka(supervisor: Daisuke Iono)
[Title]
Molecular Gas Observation of Merging Galaxies with ALMA

[Speaker2]
Cheulhong MIN, D2, SOKENDAI, Mitaka(supervisor: Mareki Honma)
[Title]
Multi-epoch VERA observations of the SiO masers toward R Aquarii

[Speaker3]
Daehyun Oh, D2, SOKENDAI, Mitaka(supervisor: Aoki Wako)
[Title]
Wide-orbit companion candidates and Stellar Disk around T-Tauri Star
[Abstract]
Two substellar companion candidates with planetary mass, around a T-Tauri star in the ρ Ophiuchi star-forming region, are discovered by results of Subaru Telescope’s near-infrared imaging. Candidates are separated by 1400au and 500au. If these candidates were real companions, they are the widest-orbit and the lowest mass planetary-mass companions(PMCs) candidates. This discovery may suggest that PMCs form via extreme case of cloud core fragmentation for multiple stars. And also stellar disk are imaged by HiCIAO, hight contrast instrument for exoplanets and disks, with Subaru Telescope. This could be the first case, which imaged both of planetary mass companions and disk around same star. Even two companions candidates are not bounded around the star, they still could be one of the lowest mass objects. In this presentation, I will discuss about observations and confirmations of these objects, and the latest results about their properties.