KUSHIBIKI Kosuke - Astronomical Science Program, SOKENDAI

Assistant Professor KUSHIBIKI Kosuke

I am developing astronomical instruments for large telescopes. In particular, I am mainly working on the development of a near-infrared imager, ULTIMATE-Subaru Wide Field Imager (WFI), for the Subaru telescope to study galaxy formation and evolution. A large field of view and high spatial resolution achieved by ULTIMATE-Subaru allows us to resolve high-redshift galaxies into their internal structure and nearby galaxies into individual stars to study their physical properties in detail. ULTIMATE-Subaru WFI has many band-pass filters to observe astronomical objects in various wavelengths. In addition to the development, I also work on the development of an integral field unit (IFU), which can obtain spectral information over a two-dimensional field of view. In particular, I have been developing a metal image-slicer type IFU using an ultra-precision cutting technique for near-infrared observation of nearby galaxies.

Kushibiki et al. 2024, “Development of a near-infrared wide-field integral field unit by ultra-precision diamond cutting”, JATIS, 10(1) 015004.
Kushibiki et al. 2022, “Development status of a near-infrared integral field unit SWIMS-IFU”, Proc. of SPIE, 12188, 121882V.
Kushibiki et al. 2020, “Fabrication of mirror arrays with an ultra-precision cutting technique for a near-infrared integral field unit SWIMS-IFU”, Proc. of SPIE, 11451, 114512Y.