58 citations · 75 across the 5 of their papers we have counts for
5 papers
Observable Lyapunov irregular sets for planar piecewise expanding maps
Yushi Nakano, Teruhiko Soma, Kodai Yamamoto
For any integer with , we present a one-parameter family of 2-dimensional piecewise expanding maps such that each has an ob…
A Substellar Companion to Pleiades HII 3441
Mihoko Konishi, Taro Matsuo, Kodai Yamamoto +55
We find a new substellar companion to the Pleiades member star, Pleiades HII 3441, using the Subaru telescope with adaptive optics. The discovery is made as part of the high-contra…
Study of infrared excess from circumstellar disks in binaries with Spitzer/IRAC
Yusuke Itoh, Misato Fukagawa, Hiroshi Shibai +2
The presence of excess emission at 3.6--8.0 m was investigated in a sample of 27 binary systems located in two nearby star-forming regions, Taurus and Ophiuchus, by using Spitze…
Indications of M-dwarf Deficits in the Halo and Thick Disk of the Galaxy
Mihoko Konishi, Hiroshi Shibai, Takahiro Sumi +55
We compared the number of faint stars detected in deep survey fields with the current stellar distribution model of the Galaxy and found that the detected number in the H band is s…
Direct Imaging Search for Extrasolar Planets in the Pleiades
Kodai Yamamoto, Taro Matsuo, Hiroshi Shibai +53
We carried out an imaging survey for extrasolar planets around stars in the Pleiades (125 Myr, 135 pc) in the and bands using HiCIAO combined with the adaptive optics,…