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SAC report FY2018

This report discusses major discussion items from the Subaru Science Advisory Committee, including downtime due to various factors, instrument reviews, the Subaru 20th anniversary conference, and progress in international partnerships.

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SAC report FY2018

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  1. Subaru UM FY2018 (2018/1/28, NAOJ-Mitaka) SAC report FY2018 Tadayuki Kodama (SAC chair; Tohoku Univ.)

  2. Subaru Science Advisory Committee (SAC: すばる科学諮問委員会) Term: 1st Sep 2018 ~ 31st Aug 2020 AKIYAMA, Masayuki (Tohoku Univ.) Ex-officio(TAC Chair) DOI, Mamoru (Univ. of Tokyo) IKOMA, Masahiro (Univ. of Tokyo) New KAWABATA, Kouji (Hiroshima Univ.) New KODAMA, Tadayuki (Tohoku Univ.) Chair KOTANI, Takayuki (NAOJ/ABC) New KURITA, Mikio (Kyoto Univ.) New MATSUDA, Yuichi (NAOJ/ALMA) New MATSUSHITA, Kyoko (Tokyo Univ. of Sci.) MIYAZAKI, Satoshi (NAOJ/ATC) New NAGAO, Tohru (Ehime Univ.) NISHIYAMA, Shogo (Miyagi Univ. of Edu.) TANAKA, Masaomi (Tohoku Univ.) TOSAKI, Tomoka (Jo-etsu Univ. of Edu.) New YAMAMURA, Issei (JAXA/ISAS) YASUDA, Naoki (Univ. of Tokyo, IPMU) OBSERVERS YOSHIDA, Michitoshi (Director) OHASHI, Nagayoshi (Vice-director) KANBE, Eiji (Hilo office) KASHIKAWA, Nobunari (Head of Mitaka office) AOKI, Wako (Mitaka office) SANDERS, David (Univ. of Hawaii)

  3. Recent major discussion items - Downtime (Bad weather, Eruption, Earthquake, Hurricane, Facility troubles...) - IRD-SSP review - Additional night request of HSC-SSP - Instrument decommission plan - Subaru 20th anniversary conference + Subaru UM - Subaru & TMT-J one observatory concept (co-operation) - International Partnership

  4. Downtime Bad weather, Eruption, Earthquake, Hurricane, Facility/Instrument troubles… A major repair work (dome, UPS, etc…) is expected in Summer 2019 (Aug-Sep) Maintenance is important before starting international partnership!

  5. IRD-SSP review -70 nights over 2 years (19A-20B) out of requested 175n have been approved on condition that instrument performance will be reviewed again in Apr 2019. -In S19A, 15 science nights + 2 engineering nights have been assigned. -Remaining 105 nights will be re-considered by the interim review at TAC+SAC in July 2020.

  6. Additional 30 nights request of HSC-SSP Weather factor has been worse than expected by ~15% Completion fraction: D/UD=80%, W=72% (300nights) D/UD>80%, W>80% (300 + 30nights) This request will be discussed at UM in this afternoon.

  7. Instrument Decommission Plan To reduce the operation cost COMICS  2020 FOCAS  2022 This request will be discussed at UM in this afternoon.

  8. Subaru 20th anniversary conference + Subaru UM Nov 16-22 (UM; 16-17) LOC: Rhythm Shimakawa, Sakurako Okamoto, et al. Registration will start from Mar 2019.

  9. Subaru & TMT-J One Observatory Concept (co-operation) to enhance convenience and efficiency Day 3

  10. International Partnership China: ~0.5M USD × 4 years. This may or may not go through EAO. Negotiations with China/EAO are underway. Some EAO-related science collaboration meetings were held/will be held. India: Positive discussion has started. NAOJ-DG et al. visited India in Dec 2018 and discussed with 8 institutes/universities. Canada: Positive discussion has started. See Luc Simard’s talk. Co-held a Canada-Subaru session in “Wide-field Astronomy in Canada” (Oct 11-12, 2018). Dawn: Positive discussion has started. Grant application made. See SuneToft’s talk. Concept/Scheme of Subaru international partnership is being formed. 5% upper limit is placed for international (open sky) programs from S19A. We have dedicated sessions on Day-2 (afternoon; English) and Day-3 (morning; Japanese)

  11. Subaru, be healthy for good! Riho Yoshioka’s visit to Subaru (28th Oct 2018) (a famous actress) Filming a TV program on air at 21:00-23:00 on 25th Jan at BS-TBS

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