An international team of astronomers has discovered a tightly packed cluster of supermassive black holes dating back 10.8 ...

Observers are required to establish and document proper observation procedures by contacting with the Support Astronomer (SA) beforehand. Please plan with your SA regarding your research details by ...

PSZ2 G181.06+48.47. III. Weak-lensing Analysis and Merging Scenario Reconstruction of a Low-mass Cluster with Exceptionally Distant Radio Relics, ApJ, 984, 26 (05/2025) Andika, I. T., et al., ...

Adaptive Optics Rest-Frame V-Band Imaging of Lyman Break Galaxies at z~3: High Surface Density Disklike Galaxies?, ApJS, 175, 1 (03/2008) Allende Prieto, C., et al., The Segue Stellar Parameter ...

The team of scientists in Tohoku Univ., Riken, Subaru Telescope, NAOJ, Univ. of Tokyo etc have developed the new grisms ("LightSmyth J/H"). They will have similar spectral resolution to the existing ...

See “CCD information” for the detail. The CCDs are arranged on the focal plane with two different gaps of approximately 12 arcsec and 53 arcsec between neighboring CCDs. We recommend that you should ...

国立天文台や東京大学の研究者を含む国際共同研究チームは、くじら座の方向の約 108 億年前の宇宙で 11 ...

This section contains useful information for astronomers that is not specific to Subaru Telescope. If you are looking for information to help you write a proposal or prepare for an observing run, ...

Subaru AO188 is an 188 element curvature sensor adaptive optics system that are operated in both natural guide star (NGS) and laser guide star (LGS) modes. AO188 module is mounted on the Nasmyth ...

Service Program is for observing proposals which require less than or equal to 4 hours including all the "open-dome" calibrations and overheads. All Service Program observations will be executed by ...

Night supports by the telescope operation group is limited to the on-call off-site support by 9 pm due to increasing demand for maintenance work for the aging telescope and dome. On-site ...