Concept

OHS has the capability of eliminating more than 150 of the brightest OH airglow emission lines, which are a major source of background radiation at near-infrared wavelengths (1-2um). OHS is a pre-optics system installed between the telescope and the infrared spectrograph called "CISCO". CISCO is also operated as a general infrared camera/spectrograph when it is mounted on the Cassegrain focus of the Subaru telescope directly.

PS file (poster3.ps.gz :1.2MB)

PS file (poster2.ps.gz :1.7MB)
fig.1 fig.2 fig.3 fig.4

PS file (iau.ps.gz :0.43MB)

Optical design

PS file (poster3.ps.gz :1.2MB)	PS file (poster2.ps.gz :1.7MB) fig.1 fig.2 fig.3 fig.4	PS file (iau.ps.gz :0.43MB)	Optical design

Photographs/Images/Data

OHS main body
CISCO First Light!!
filter
Test observation (IR simulator telescope)
Parts etc...

Reports

Test Observation in Sep 00 (ohs4.ps.gz :1.0MB, in Japanese)
Test Observation in Jul 00 (ohs3.ps.gz :0.7MB, in Japanese)
Test Observation in May 00 (ohs2.ps.gz :0.7MB, in Japanese)
Test Observation in Jan 00 (ohs1.ps.gz :1.5MB, in Japanese)
Test Observation in Jan 99 (report.subaru1.ps.gz :2.1MB, in Japanese)
Test Observation in Jan 98 (report.testobs2.ps.gz :1.8MB, in Japanese)
Progress Report in Jun 97 (fdr3.ps.gz :3.4MB, in Japanese)
Progress Report in Dec 96 (fls2.ps.gz :4MB, in Japanese)

Member

Toshinori Maihara**Photo
Fumihide Iwamuro**Photo
Kentaro Motohara

Cosmic-Ray Group Home page

Prototype OHS

iwamuro@cr.scphys.kyoto-u.ac.jp