SOT SpectroPolarimeter Bx By BzvT x y t
SOT Spectro-Polarimeter 光球のベクトル磁場（Bx, By, Bz）、視線速度場（v）、温度（T） の３次元分布（x, y, t）として求める装置。 時間分解能 ＞ 数時間 空間分解能 ｘ 精度 世界最高 SP 参考文献 • Hinode Solar Optical Telescope Data Analysis Guide, 2008. 1. 23 • ”The Hinode Spectro-Polarimeter”, Lites etal. , 2013, Sol. Phys. . 283. . 579 L • “The SP_PREP Data Preparation Package for the Hinode Spectro. Polarimeter” , Lites and Ichimoto, 2013, Sol. Phys. . 283. . 601 L • 国立天文台ひのでサイエンスセンター http: //hinode. nao. ac. jp/index. shtml
SOT ポラリメータの構成 OTA Collimator lens unit (CLU) Polarization modulator unit (PMU) 1 rev. /1. 6 sec HDM CTM-TM M 2 Astigmatism corrector lens (ACL) M 1 Mech. Mask wheel shutter NFI- Polarization analyzer Reimaging lens Tunable filter FG/NFI Pupil image Non-polarizing beam splitter FG-CCD Blocking filter wheel SP Slit scan mirror Slit SP- Polarization analyzer (polarizing beam splitter) SP-CCD left/right 16 frames/sec 3
![Polarization modulation and demodulation V U Q Waveplate angle [deg. ] PMU segment SP](http://slidetodoc.com/presentation_image_h/ae15e0fbe4101b3cde1ece47c979361d/image-4.jpg "Polarization modulation and demodulation V U Q Waveplate angle [deg. ] PMU segment SP")
Polarization modulation and demodulation V U Q Waveplate angle [deg. ] PMU segment SP onboard demodulation 0 + + + - 1 + + - 2 + - 3 + + - 4 + + 5 + + + 6 + + 7 + + + 8 + + + - 9 + + - 10 + - 11 + + - 12 + + 13 + + + 14 + + 15 + + + I’ Q’ U’ V’ 4
SOT observables FG: - simple image - Dopplergram (2 wavelengths) - Stokes IV - Stokes IQUV - IVDG (2 wavelengths) SP: - normal mode (0. 16” step, 4. 8 s/slit) - fast mode (0. 32” step, 3. 2 s/slit) - dynamic mode (0. 16” step, 1. 6 s/slit) - deep mode (0. 16” step, 9. 6 s/slit) 5
データの探し方 NAOJ ひのでサイエンスセンターQL http: //hinode. nao. ac. jp/QLmovies/ LMSAL operation info. https: //sot. lmsal. com/operations/timeline/
SP 生データ SP 4 D 20070228_183214. 2. fits I -Q -U level-0 -V I Q U V
sp_prep. pro （標準ソフト） 処理内容： - ダーク・フラット補正 偏光校正 分散方向の傾き補正 スペクトルの曲がり補正 CCD両サイド（直交スペクトル）の結合 波長反転 周回ドリフト補正 使い方： ex_sp_prep 2. pro HSC にて @/home/ichimoto/idlpro/solarb/analysis/file_io/sot_filelist. pro ; topdir ='/isas/data/solarb_fits/sot/Quick. Look' topdir ='/isas/data/hinode_fits/sot/level 0' date='20070202' & start_time=date+'_121300' & end_time=date+'_150000‘ outdir='/nfs/scr 01/ichimoto/spcal/'+date+'/‘ files=sot_filelist('SP 4 D', start_time, end_time, topdir=topdir) sp_prep, files, outdir=outdir, /verbose; end 9
SP １次処理データ SP 4 D 20070228_183214. 2 C. fits I level-1 Q U V
Definition of SOT polarization coordinate This definition is applied to the Stokes vectors obtained after application of the X-matrix. Raw Stokes products of FPP are not consistent with this definition. -Q -U +U N -V -Q -U FPP +U W +Q E +Q +V -V S/C +Y +V S S/C +X View from the top of SOT View towards the sun This definition is the same as that used in the analysis of the suntest data of 2004. 8 and consistent with the ASP definition, ie. positive V at blue side of spectral line gives positive magnetic flux. This is also consistent with the definition of Stokes V: (right circ. – left circ. ), where right circular polarization is positive when electric vector rotates clockwise looking at the source.
![簡易マップ作成; simple_iquvmap. pro （一本製） ; smap: [*, *, k] 'continuum', $ 'Q', $ 'U',](http://slidetodoc.com/presentation_image_h/ae15e0fbe4101b3cde1ece47c979361d/image-12.jpg "簡易マップ作成; simple_iquvmap. pro （一本製） ; smap: [*, *, k] 'continuum', $ 'Q', $ 'U',")
簡易マップ作成; simple_iquvmap. pro （一本製） ; smap: [*, *, k] 'continuum', $ 'Q', $ 'U', $ 'V', $ ; 'NCP (6302)', $ 'Dopp. (CG)', $ 'Dopp. (6301 botm)', $ 'Dopp. (6301 wing 0. 8)', $ 'I (6301 core)', $ 'total rss(circluar)', $ 'total rss(linear)', $ 'Dopp. (6302 I+V botm)', $ 'Dopp. (6302 I+V wing 0. 8)', $ 'Dopp. (6302 I-V botm)', $ 'Dopp. (6302 I-V wing 0. 8)', $ 'NCP (6301)', $ 'V (6302+0. 365)', $ 'V (6302 -0. 276)', $ 'V (6301)' $ ] dir=‘level-1 ディレクトリ' vname=[ spos=0 0 全体 1 scan とみなす 20 1 scan 20 slit pos の繰り返しと見なす 様々な量の２次元マップsmap[*, *, *] をつくり dirsmap. isv に保存。 例えば Q-map は下の波長領域を積分 l 0 -10 ~ l 0 -2 l 0 +2 ~ l 0 +10 l 0 =75 k ; 0 ; 1 ; 2 ; 3 ; 4 ; 5 ; 6 ; 7 ; 8 ; 9 ; 10 ; 11 ; 12 ; 13 ; 14 ; 15 ; 16 ; 17 ; 18
磁場へ変換 Stokes インバージョン HSC ME インバージョンコード by Yokoyama 他 sp_meinv. pro （一本製） ; ------ data(*, *, i) -------------------; 0 Field strength Gauss ; 1 Field inclination degree ; ---------------------; 2 Field azimuth degree date='20071015' ; 3 Doppler shift 630. 15 nm km/sec ; ---------------------4 Doppler shift 630. 25 nm km/sec dir='/nfs/scr 01/ichimoto/spcal/'+date ; 5 Doppler width m. A invdir='/nfs/scr 01/ichimoto/spcal/meinv' ; ; 6 Line strength non-dim outdir=invdir ; 7 Damping parameter non-dim ; 8 Source function non-dim ; 9 Source function gradient non-dim ; 10 Macro-turbulence km/sec ; 11 Straylight fraction non-dim ; 12 Straylight shift m. A ; 13 Continuum intensity DN ; 14 Polarization degree
- Slides: 14
