Ryou Ohsawa

发表

The Tomo-e Gozen wide field CMOS camera for the Kiso Schmidt telescope

Mamoru Doi, Shigeyuki Sako, Tsutomu Aoki, 2018, Astronomical Telescopes + Instrumentation.

Photometric error in mid-infrared observations at the TAO site caused by short-term variation of atmospheric water vapor

Shigeyuki Sako, Takafumi Kamizuka, Ryou Ohsawa, 2018, Astronomical Telescopes + Instrumentation.

NIR camera and spectrograph SWIMS for TAO 6.5m telescope: overview and development status

Mamoru Doi, Shigeyuki Sako, Hirofumi Ohashi, 2016, Astronomical Telescopes + Instrumentation.

Development of high-throughput silicon lens and grism with moth-eye anti-reflection structure

Shigeyuki Sako, Takafumi Kamizuka, Takashi Miyata, 2014, Astronomical Telescopes and Instrumentation.

Development of an optical device (Field Stacker) for achieving accurate photometry in ground-based mid-infrared observations

Shigeyuki Sako, Takafumi Kamizuka, Takashi Miyata, 2016, Astronomical Telescopes + Instrumentation.

Performance of the reflective optics of MIMIZUKU at cryogenic temperature

Shigeyuki Sako, Takafumi Kamizuka, Ryou Ohsawa, 2018, Astronomical Telescopes + Instrumentation.

Development status of the simultaneous two-color near-infrared multi-object spectrograph SWIMS for the TAO 6.5m telescope

Mamoru Doi, Shigeyuki Sako, Hirofumi Ohashi, 2018, Astronomical Telescopes + Instrumentation.

Development of superconducting voice coil motor of a cold chopper for MICHI

Shigeyuki Sako, Hiroyuki Ohsaki, Takafumi Kamizuka, 2016, Astronomical Telescopes + Instrumentation.

Laboratory performance evaluation of the mid-infrared camera and spectrograph MIMIZUKU for the TAO 6.5-m telescope

Mamoru Doi, Shigeyuki Sako, Hirofumi Ohashi, 2018, Astronomical Telescopes + Instrumentation.

Development of Extremely Wide-Field CMOS Camera Tomo-e:Contribution to Small Solar System Objects

Shigeyuki Sako, Ryou Ohsawa, Ko Arimatsu, 2016 .

Development of a real-time data processing system for a prototype of the Tomo-e Gozen wide field CMOS camera

Kazuma Mitsuda, Mamoru Doi, Shigeyuki Sako, 2016, Astronomical Telescopes + Instrumentation.

Development status of the mid-infrared two-field camera and spectrograph MIMIZUKU for the TAO 6.5-m Telescope

Mamoru Doi, Shigeyuki Sako, Hirofumi Ohashi, 2016, Astronomical Telescopes + Instrumentation.

Evaluation of large pixel CMOS image sensors for the Tomo-e Gozen wide field camera

Mamoru Doi, Shigeyuki Sako, Tsutomu Aoki, 2018, Astronomical Telescopes + Instrumentation.

Overview of The University of Tokyo Atacama Observatory Project and it's Prospects toward to Planetary Science

Mamoru Doi, Shigeyuki Sako, Takeo Minezaki, 2018 .

Recent progress in the development of mid-infrared medium resolution spectrometer (MRS) installed in SPICA/MCS

Yuji Ikeda, Takashi Onaka, Kenji Mitsui, 2012, Other Conferences.

Development of a new calibration method for ground-based Paschen-alpha imaging data

Mamoru Doi, Shigeyuki Sako, Takeo Minezaki, 2012, Other Conferences.

Array controller system with cryogenic pre-amplifiers for MIMIZUKU

Shigeyuki Sako, Takafumi Kamizuka, Takashi Miyata, 2016, Astronomical Telescopes + Instrumentation.

Development of a simultaneous two-color near-infrared multi-object spectrograph SWIMS for the TAO 6.5-m telescope

Mamoru Doi, Shigeyuki Sako, Takeo Minezaki, 2014, Astronomical Telescopes and Instrumentation.

Revised specifications and current development status of MIMIZUKU: the mid-infrared instrument for the TAO 6.5-m telescope

Mamoru Doi, Shigeyuki Sako, Takeo Minezaki, 2014, Astronomical Telescopes and Instrumentation.

Streaks detection algorithm implemented in GPU for the Tomo-e camera at Kiso Observatory

Shigeyuki Sako, Hirohisa Kurosaki, Ryou Ohsawa, 2021 .

An optical search for transients lasting a few seconds

Mamoru Doi, Shigeyuki Sako, Makoto Yoshikawa, 2019, Publications of the Astronomical Society of Japan.

Development of flat fielding method in MIR for accurate photometry with TAO/MIMIZUKU

Shigeyuki Sako, Takafumi Kamizuka, Takashi Miyata, 2020 .

“Slow-scanning” in Ground-based Mid-infrared Observations

Shigeyuki Sako, Shiro Ikeda, Takafumi Kamizuka, 2018, 1804.04271.

DATA COMPRESSION FOR THE TOMO-e GOZEN USING LOW-RANK MATRIX APPROXIMATION

Shigeyuki Sako, Shiro Ikeda, Ryou Ohsawa, 2016, 1612.03994.

J-GEM observations of an electromagnetic counterpart to the neutron star merger GW170817

Kazuya Matsubayashi, Mamoru Doi, Shigeyuki Sako, 2017, 1710.05848.

The University of Tokyo Atacama Observatory 6.5m telescope : On-sky performance of the near-infrared instrument SWIMS on the Subaru telescope

Mamoru Doi, Shigeyuki Sako, Ichi Tanaka, 2020, Ground-based and Airborne Instrumentation for Astronomy VIII.

Kilonova from post-merger ejecta as an optical and near-infrared counterpart of GW170817

Mamoru Doi, Kentaro Aoki, Ichi Tanaka, 2017, 1710.05850.

The University of Tokyo Atacama Observatory 6.5m telescope: On-sky performance evaluations of the mid-infrared instrument MIMIZUKU on the Subaru telescope

Mamoru Doi, Shigeyuki Sako, Takeo Minezaki, 2020, Ground-based and Airborne Instrumentation for Astronomy VIII.

First Paschen α Imaging from the Ground : the First Light of Atacama Near-Infrared Camera on the miniTAO 1 m Telescope

Mamoru Doi, Shigeyuki Sako, Takeo Minezaki, 2010 .

CONCURRENT FORMATION OF CARBON AND SILICATE DUST IN NOVA V1280 SCO

Shigeyuki Sako, Bon-Chul Koo, Takashi Onaka, 2015, 1507.08801.

ANIR : Atacama Near-Infrared Camera for the 1.0-m miniTAO Telescope

Mamoru Doi, Shigeyuki Sako, Shinya Komugi, 2015, 1502.00638.