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2009.4.4 ~ 4.11 米国訪問記

2009.4.4 ~ 4.11 米国訪問記. ・ボルダーにて Solar-C 彩層診断に関するサブワーキンググループ会議 ・ビッグベア太陽観測所訪問. Solar-C sub working group for chromosphere and corona observations （ SWGCC ） Kickoff meeting, 4/5 - 6 in HAO, Boulder Task of SWGCC:

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2009.4.4 ~ 4.11 米国訪問記

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  1. 2009.4.4 ~ 4.11 米国訪問記 ・ボルダーにてSolar-C 彩層診断に関するサブワーキンググループ会議 ・ビッグベア太陽観測所訪問

  2. Solar-C sub working groupfor chromosphere and corona observations （SWGCC） Kickoff meeting, 4/5 - 6 in HAO, Boulder Task of SWGCC: Evaluate the following items for the Solar-C, and provide the mission proposal for JAXA by next spring. 1. Specific science goals by chromospheric field measurements 2. Spectral diagnostics necessary to address the above issues 3. Requirements for the instruments specific to SOLAR-C plan-B ※ Telescope D = 0.5 ～ 1.5m

  3. Solar-C sub working groupfor chromosphere and corona observation Attendee and program Y. Katsukawa (NAOJ) chair (B. Lites, HAO)怪我 Science goals of chromospheric field measurements (T. Wiegleman) Non-Linear Force Free extrap. of coronal mag. field M. Carlsson (U. Oslo) MHD simulation and comparison with CRISP obs. T. Okamoto (NAOJ) Prominence science Y. Suematsu (NAOJ) Chrom. reconnection Diagnostic methods for chromospheric mag.： D. Orozco Suarez (NAOJ) ME inversion for chrom. line H. Socas Navarro (IAC) CaII IR triplet inversion, J. Trujillo Bueno (IAC) Hanle+Zeeman diagnostics, CaII IR vs. He10830 H. Uitenbroek (NSO) Response / contribution function of chrom. lines R. Casini (HAO) Hα Stalk effect and electric fields measurement (S. Nagata,Kyoto U.) MgII h&k observation K. Ichimoto (Kyoto U.) Summary of chrom. lines Instruments： H. Lin (U. Hawaii) Focal instruments for ATST, multi-slit sp, fiber image slicer

  4. Chromospheric lines (D=1m) *1) LOS field strength to create V/I = 10-4 *2) Sqrt [ # of photon /sec/0.1” pix /(100mA*l/6000) ] with 1m telescope, throughput=0.1 *3) 1)÷2) = detectable LOS field strength in1 sec integration chrom_line2.pro w/ SacPeak atlas

  5. HeI 10830 10830.34 10829.08 10830.25

  6. CaII IR triplet 8498 8542 8662

  7. Ha Hb

  8. NaI D1/D2 Z=11  Ground level config. 1s22s2 2p6 3s1 (2S1/2) 5890 (D2) 5895 (D1)

  9. MgI triplet 5167 5172 5183

  10. CaII H&K K H CaII K CaII H

  11. MgII h&k k h

  12. Big Bear Solar Observatory4/7~9

  13. Members Valentyna Abramenko, Research Professor Vladimir Abramenko, Electronics Engineer Kwangsu Ahn, Researcher Aleksandra Andic, Research Professor Wenda Cao, Assistant Professor Aaron Coulter, Mechanical Engineer Roy Coulter, NST Project Director Randy Fear, Senior Solar Observer Phil Goode, Professor, Director Nicolas Gorceix, Optical Engineer Jeff Nenow, Mechanical Engineer/Solar Observer Erika Norro, Administrative Assistant Alla Shumko, Solar Observer Sergiy Shumko, Researcher, Assistant System Administrator John Varsik, Research Professor,System Administrator Vasyl Yurchyshyn, Research Professor

  14. Hαfull disk Obs.、2008~ D=10cm, 1/4A Zeiss Lyot, 2k x 2k、Kodak intreline, ７frame/sec.10bit. 1/20 real time frame selection 5 wave /120sec Control through network

  15. NST (New Solar Telescope) under construction

  16. NST (New Solar Telescope) Roy Coulter, NST Project Director に説明受ける 主鏡： Zerodure 10cm 厚メニスカス、裏と横からてこ（36点）で保持。 　　　 軸外し放物 f3.8m, F/2.4、製作　Steward Observatory Mirror Lab 　 将来はアクチュエータで各点の力を制御。 　　　表面に気流、裏面冷却系はまだ。 排熱鏡：四や120”、反射光はドーム内壁に。 副鏡：楕円、83.2m effective focal length (f/52 at Gregorian focus) 構造：シリンダーでのデクリの動かし方がユニーク。 　　　 東西のスライド式ウェイトで重心を常に極軸の鉛直上に持ってくる。 　　　 副鏡を支える構造は軽量アルミ。位置精度が確保できるかわからない。調整機構？ ドーム：ドームには開口と同じ大きさの穴。 　　　 側面には風通しの窓が多数。 　　　羽の角度で各開口を調整できるが、どう使うかはまだ不明。 現状：観測室までまだ光は行ってない。 　　　望遠鏡側面（ナスミス）でCTを設置中。（韓国人） 　　　メイン構造物以外はすべてをここで手作りでやっている。 　　　望遠鏡周りは３人のシニアなアメリカおじさん。計算機、制御ソフトもおじいさん。 First light 画像：　4/2-3 あたりに撮ったもの。 705nm, 5ms x 100image でspeckle reconstruction、 開口90cm 相当の回折限界像を得ている。 100枚の生画像はありきたりに見えるが、求めた画像はLaPalma 1m に 予定：AO SacPeak システムをコピー、 Polarimeter は設計中

  17. Fast Imaging Spectrometer (FISS, Korean contribution ) Specifications of FISS Item Specification Lines of interest Ca II (H, K, 8542), Hα, He I 10830Å and so on Spectral resolving power (λ/Δλ) 1.4 × 105 Field of view 40'' × 60'' Best cadence 10 seconds Incident F ratio 26 Slit width 16μm CCD pixels / size 512 × 512 / 16μm × 16μm

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