Current Status of FMOS and Schedule Toward the Common Use
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Current Status of FMOS and Schedule Toward the Common Use Naruhisa Takato
description
Current Status of FMOS and Schedule Toward the Common Use. Naruhisa Takato. What is FMOS?. F ibre M ulti- O bject S pectrograph. wavelength coverage: 0.9 – 1.8 um FOV: φ30 ‘ 400 multiplicity OH – airglow suppression spectral resolution: R=500 & 2200 - PowerPoint PPT Presentation
Transcript of Current Status of FMOS and Schedule Toward the Common Use
Current Status of FMOSand
Schedule Toward the Common Use
Naruhisa Takato
What is FMOS?Fibre Multi-Object Spectrograph
• wavelength coverage: 0.9 – 1.8 um• FOV: φ30 ‘• 400 multiplicity• OH – airglow suppression• spectral resolution: R=500 & 2200• expected limiting magnitude: ( 1 hour, S/N=5) J = 22.3, H = 20.9
A Quick History of FMOS
• 2000 : project approved design and development of - Fibre positioner (Echidna): AAO - Prime Focus Unit (PIR): Kyoto/NAOJ - Spectrograph IRS1: Kyoto/NAOJ, IRS2: Oxford, RAL (UK) - F5 fibre: Durham (UK)
A Quick History of FMOS
• 2005/07, 10 1st and 2nd PIR test on telescope
- Corrector was offseted/tilted, but could not correct it because corrector could move only along 1-axis and…- PIR cable wrapper broken mechanically
Cable wrapper and corrector moving mechanism were re-designed and newly fabricated.
Photo: M. Kimura
IRS１（ Univ. Kyoto) IRS２（ UK)
TUE-IR / Subaru
F5 fibre installation
Current Active Members
• Hawaii M. Akiyama, N. Tamura, M. Kimura, P. Tait, N. Takato• Kyoto F. Iwamuro, T. Maihara, K. Ohta• Oxford Univ., Univ. Durham, Rutherford Appleton Lab. (UK)• Anglo Australian Observatory (AU)
Progress in FMOS engineering Obs.
- Coma aberration can be canceled by adjusting corrector lens using SH wavefront measurement- optics: 0.3-0.5 arcsec, - actural image size (incl. seeing): 0.8-1”- telescope distortion modeling: 0.8” rms => 6 stars were acquired at the same time in AG fiber- Obtained Sky spectrum
Stellar images in AG fibre
A Tentative Schedule Toward Open Use
• 2007/12 : PIR test on the telescope (I)(II)• 2008/01 : Echidna test on the telescope (I)• 2008/02: refine Echidna and Spectrograph control on the telescope(II)• 2008/05: IRS1,2 test (I)• 2008/06: IRS1,2 test (II)• 2008/08-: tune-up the total system• 2008/12? - : start GT?• 2009/06 : provide maintenance document• 2009/08??: start Open Use
… need stable instrument for open use
