The 36-th Subaru Advisory Committee


Date: 11:00- 15:30,  Jan.10, 2002(JST)

Place: NAOJ, Subaru TV conference room

Participants: Ando, Iye(Chair), T.Ichikawa, Okamura, Kataza,

  Sato, Sugiyama, Tamura(Secretary), Nakano, Maihara, Yamashita,

  S.Ichikawa, Kudritzki

Absent: M.Hayashi, Fukushima, Karoji


0.   Minutes of the 35-th SAC Meeting(36-1)


1.   IFA Long Term Plan (36-5; Kudritzki)

   The IFA of UH has 200 staff and 60 scientists at Manoa campus, Hilo campus and observatories at Mauna Kea and Haleakala.   A 2m outreach telescope, Faulkes Telescope, for UK/US students recruitment will be commissioned in the spring of 2002.   The fund raising and recruitment of new staff were made under the initiative of the new director.  The key strategy is to promote development of detectors and instrument, a coherent planning of new telescope projects, and nourishing strong science team with a vision that IFA should lead the development of the next generation of the world's best astronomy facilities.

    Three new telescope projects are introduced:

(I)Advanced Technology Solar Telescope (with NSO)

Off-axis telescope, 4m AO, off-axis, prototype now building on Haleakala.

(II)6.5m off-axis design, low scattering, low IR emissivity, AO/normal/wide fields, IRTF replacement.

(III)High Dynamic Range Telescope: 6 off-axis mirrors, each 8.5m, equivalent to 21m, unique PSF, ultra-low scattered light and IR emission, distributed pupil, diffraction limited (0.01") to 750 nm with AO, narrow field 3'x3' (0.12" blur diameter), wide field 3degx3deg (0.2" diameter), 500 actuators AO.


* Presentation of the long term IFA plan at the Long Term Plannining Workshop of NAOJ is to be organized.



2.   Status report of the Hawaii Observatory(36-2;  Ando)

2.1  Telescope: Major improvements were made on Mirror Analysis procedure and the tracking accuracy.  The vibration behavior of the telescope is under investigation.  Revisions are made  on telescope control system.  The IR tip-tilt chopping secondary mirror is now performing smoothly.

2.2   Instruments: The AO system performance becomes stable.  COMICS runs well.

  The readout system of SuprimeCAM is improved.

  New IRCS detectors performs satisfactorily.

  Multi object spectroscopy of FOCAS is commissioned.

  The manufacturing of the second generation instruments is on their way.

2.3 Telescope Operation:The supervision of the operation groups will be transferred from astronomers to dedicated specialists.

2.4  Budget: One division with 4 astronomers will be transferred from Mitaka to Hilo.

   The budgetary situation will become tougher from next year and increased effort should be made for acquiring budget for building new instruments.

2.5  Open Use Observations:No serious problem. The three nights run of a PI instrument HHESS was made successfully.  All the 8 instruments are offered for open use in S02A.  Engineering review will be made on Kyoto3DII.

2.6  Telescope upgrade: Offset Shack-Hartmann, improvement in tracking accuracy, infrared secondary mirror control, re-coating of the optical Nasmyth image rotator.

2.7   Telescope time for UH88/UKIRT: MOU soon to be signed.

2.8  Others: Keck laser guide star experiment with laser traffic control was made and Subaru measured the scattering level of the laser beam.  The MOU for the OHANA project is under consideration.


3.   Time Allocation Committee(36-3;  Yamada)

3.1   Summary of the submitted proposals was given.  The rate of over subscription is about 5 for S02A in contrast to 7.2 for S01B.

3.2   Schedule for the next semester S02B was explained.

3.3   Some key issues for the next semester were discussed.

  All the 8 instruments will be offered for S02B.   Electronic submission of proposals will

 be accepted.   The CFP for intensive program will be made also for S02B.

 According to the strong demands from the community that the constraint of the maximum of three nights for open use proposals should be relaxed and that the service observations should be incorporated, TAC is expected to report a new scheme  from S03A accepting such proposals.  and the new framework.   The remote operation is expected to start from S03A.


4.   Budget for computers and software(S.Ichikawa)

  The budgetary framework for computers and software is explained.


5.  Subaru Users Meeting: Report from GOPIRA(36-4, T.Ichikawa)

5.1 Intensive Program / Observatory Project:The users expressed their hope to keep

 useful fraction of dark nights available for open use proposals despite the

 implementation of the Intensive program and the Observatory program.

5.2  Petition was made to continue financial support to the university groups despite the

 new situation of the budgetary scheme.



6.  UH/UKIRT Time allocation(36-9-1, Tamura)

6.1  The call for proposals for the use of UH2.2m telescope in the second semester of 2001 was made and application of two PI instruments (LIPS of Tohoku Univ. and Kyoto 3DII of Kyoto Univ.) was granted their time.

6.2   The CFP for 3.8mUKIRT will be made from the second semester of 2002.

6.3  The signature of the MOU will be made.


7.  TAC for UH/UKIRT Time(36-9-2、Ando)

 A proposal was made to constitute a TAC with 4 members representing the Hawaii Observatory, Mitaka Office, R&D subcommittee, and the Committee for Optical and Infrared Astronomy (COIA) and make scientific assessment without recourse to outside referees unless the number of proposals become unaffordable.  This proposal was approved by the SAC and parallel discussion will be made in the COIA.


8.   Observatory Project(36-6, Ando)

 The outline of the Observatory Project to be conducted during S02A and S02B was decided but the task force will review the progress every half year until the end of the project.

  The project will be conducted by organizing two teams for deep surveys:

 A. Wide band SuprimeCam imaging of Subaru-XMM Deep Field. 13 dark nights in Sep-Nov. 2002.

 B.  Wide and Narrow band SuprimeCam imaging of Subaru Deep Field. 8nights in Apr-June, 2002 and  6nights in Feb-Mar, 2003.

  The calibrated data will be made available to domestic users as soon as possible and will be made open to the international community within about one year.


9.  Intensive Programs(36-7, Iye)

 Five proposals were reviewed and the following two were granted.

1) Subaru Super Deep Field using Adaptive Optics (Yoshii et al.)

  5 bright nights(S02A)+5bright nights(S02B).  It was advised that special care should be taken for the AO calibration with help of the AO group for AO calibration.

2) Very Deep Search for Lyman Alpha Emitters at z=5.7 and 6.6(Taniguchi et al)」

  5 dark nights (S02A+B) was assigned on the condition that this program should be merged with the similar program carried out for SDF by the Observatory Project.


10.  Telescope Time Allocation Framework(36-8a, Ando)

 The framework for S02A-S03Bsemesters was proposed by the director based on the discussion with the IFA director.  The 3nights returned from IFA will be used for engineering nights for replacements of computer systems in S02.


11.  Sharing the calibration data(36-8b, Ando)

 The basic policy for sharing the calibration data was agreed.  The observatory will clarify the technical details and start the scheme as soon as possible.


12.  Post Subaru Plan(Iye)

 It was proposed to start discussion and assessment of the long term plan for Japan's next generation optical/infrared astronomy project.  An arrangement will be made between the CIOA.


13.  Referee system(Maihara)

 The chair of TAC proposed to reduce the number of referees from 5 to 4 considering the heavy increase of the submitted proposals and it was duly accepted to do so.


14.  Next Meeting will be held in the second half of May or in June and the schedule inquiry will be made toward the end of March.