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極紫外撮像分光装置 ( EIS ). 国立天文台 渡 邊 鉄 哉. EIS H.Hara Home Page http://solarwww.mtk.nao.ac.jp/hara/eis_home_J.html. 撮 像 分 光 (Imaging Spectroscopy) と オーバーラッポグラフ ( Overlappograph ) ( Pseudo-spectroheliograph ) ( 命名者 H. Zirin?). Overlappograph の原理. 凹面回折格子. EIS 光路図.
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極紫外撮像分光装置(EIS) 国立天文台 渡 邊 鉄 哉 EIS H.Hara Home Page http://solarwww.mtk.nao.ac.jp/hara/eis_home_J.html
撮 像 分 光 (Imaging Spectroscopy) と オーバーラッポグラフ (Overlappograph) (Pseudo-spectroheliograph) (命名者 H. Zirin?)
Overlappographの原理 凹面回折格子
EIS光路図 Slit/slot; 1”, 2”, 40”, 250” 多層膜主鏡 (15cmΦ) 東西スキャン 2波長域 250-290 Å 170-210 Å 多層膜凹面回折格子
観測領域 精密スキャン領域 東西 240 (360) arcsec スリット・スロット幅 1”, 2 ”, 40 ”, 250” (4位置) スリット長 512 arcsec (1pixel=13.5µm=1arcsec) 最短露出間隔< 1 秒 (sit&stare/overlappograph), <1.3秒 (raster) 観測波長域170 - 210Å & 250 - 290Å 観測温度域105 – 2 × 107°K (via HeII ~ FeXXIV) 観測密度領域108 – 1012 cm-3 (via FeXII) 観測速度域Δv ~20 kms-1/pix (250 – 290Å); 1000ph → 1kms-1 (輝線中心波長) , 3kms-1 (輝線幅)
EISチームの優先観測課題 • Coronal Mass Ejection Onset: first spatial velocity and dimming measurement at high temporal resolution • Coronal Hole Boundaries: the first measurement of intensity and velocity field at the coronal hole boundary • Quiet Sun Brightenings: the first determination of the relationship between different categories of quiet Sun events. • Flare trigger and dynamics: the first spatial determination of evaporation and turbulence in a flare • Active region heating: the first spatial determination of the velocity field in active region loops
EIS Science Planning Guide • We are developing this on our web site: http://www.mssl.ucl.ac.uk/solar-b/espg.html • Includes an EIS study form in order to ‘play’ with your own personal observing plans. • Includes a list of EIS studies produced by the EIS team • Includes line lists and intensities in different regions of activity • Includes a set of science data products • Includes a proposed operations planning procedure • Includes an initial science plan for the first 3 months