Subaru Instruments Status SUBARU Instruments Status Prospects Hiroshi

Subaru Instruments Status SUBARU Instruments Status & Prospects Hiroshi TERADA (Science Operation Division) Summary l MOIRCS: Channel-1 Replacement l Suprime-Cam: CCDs Upgrade l IRCS+AO 188: Start Open Use l Updates for HDS, FOCAS, and IRCS l Personnel and Instrument Changes 2008 SUBARU Users’ Meeting : 2009/01/16 NAOJ, Mitaka Hiroshi TERADA @ Subaru Telescope

Subaru Instruments Status 1. MOIRCS: Events in 2008 ■ Detector Replace (Channel-1) Engineering-Grade Chip (Oct 2007 – July 2008) Science-Grade Chip (July 2008 – ) ■ Replace of Ks-band Filter to Fringe-free type ■ The open of high-resolution VPH Grisms ■ Y-band medium-resolution spectroscopic ability is available ■ Problem in partial-read mode Engineering-Grade Chip for Channel-1 Systematics in Partial-Read Mode Hiroshi TERADA @ Subaru Telescope

Subaru Instruments Status 1. MOIRCS: Channel-1 Replacement Replace to a new Science-grade detector in July 2008. ■ Similar sensitivity to chip-2 detector, especially at shorter wavelength. ■ Good linearity (<<1% at 5000 -25000 ADU). ■ Low dark current (similar to chip 2). ■ One large cluster of dead pixels. QE map of the new detector See the website below for more details. http: //subarutelescope. org/Observing/Instruments/MOIRCS/chip 1 info. html Not used during the imaging observation Hiroshi TERADA @ Subaru Telescope

Subaru Instruments Status 2. Suprime-Cam: CCDs Upgrade New FDCCD+Mfront 2 w/ new dewar ü More stable with pulse tube cooler ü Less readout time (1/2) (wipe+erase: 7 s / readout: 18 s) ■ 2008 July Replacement successfully done. ■ S 08 B～ Available for Open Use. Hiroshi TERADA @ Subaru Telescope

Subaru Instruments Status 2. Suprime-Cam: CCDs Upgrade On-going work Sensitivity Ratio ü Non-linearity effect in low signal (<500 ADU) ü Systematic pattern in flat-image ü New SDFRED software by SDFRED team M 17 starforming region taken with New FDCCDs Wavelength (nm) Hiroshi TERADA @ Subaru Telescope

Subaru Instruments Status 3. IRCS+AO 188: Start Open Use IRCS w/ AO 188 NGS system ■ 2008 August Engineering restart with full system ■ 2008 October Shared-risk open use starts. (11. 5 nights; so far 8. 5 nights) IRCS w/ AO 188 LGS system under testing; TBD for S 09 B IRCS 52 mas Camera 55”x 55” Red: H 2(1 -0) 2. 122μm, Green: Brγ 2. 167μm, Blue: [Fe. II] 1. 644μm Hiroshi TERADA @ Subaru Telescope

Subaru Instruments Status 3. IRCS+AO 188: Start Open Use 15”x 15” IRCS 52 mas Camera AO 36+IRCS J J H H K K 55”x 55” Hiroshi TERADA @ Subaru Telescope

Subaru Instruments Status 4. Updates for HDS, FOCAS, and IRCS HDS Non-Linearity ■ HDS - Linearity investigation --> Could be corrected. ■ FOCAS - FDCCD upgrade - 2008: Design, fabrication, & test 2009: Installation 2010 --: Open Use New VPH grism (R~1000; 600 -1000 nm) FOCAS New Dewar & Cooler ■ IRCS (w/o AO 188) - Thermal background Almost back to the previous level @ Cs after Ns. IR Img. Rot recoating Cs @ L-band Ns. IR Recoating ◆ Hiroshi TERADA @ Subaru Telescope

Subaru Instruments Status 5. Personnel and Instrument Changes Personnels ■ AO 188 SA: Y. MINOWA ■ Suprime-Cam SA: H. FURUSAWA -> M. ISHII (Interim) => TBD Instruments ■ AO 188 LGS / FMOS Under considerations for S 09 B open or not. ■ AO 36 (2000 -2008) Decommissioned at the end of S 08 A Might be dismounted from the Telescope during M 1 -recoating period in 2010. Hiroshi TERADA @ Subaru Telescope