| タイトル | Solar magnetic fields measurements with a magneto-optical filter |
| 著者（英） | Smith, E.; Rhodes, E. J.; Rosati, P.; Ricci, D.; Cacciani, A. |
| 著者所属（英） | Jet Propulsion Lab., California Inst. of Tech.|Rome Univ. |
| 発行日 | 1990-02-01 |
| 言語 | eng |
| 内容記述 | The presence of a magnetic field at different levels inside the sun has crucial implications for helioseismology. The solar oscillation observing program carried out since 1983 at Mt. Wilson with Cacciani magneto-optical filter has recently been modified to acquire full-disk magnetograms with 2 arcsec spatial resolution. A method for the correct determination of magnetic maps which are free of contamination by velocity signal is presented. It is shown that no cross-talk exists between the Doppler and Zeeman shifts of the Na D lines, provided that instrumental polarization effects are taken into account. The observed line-of-sight photospheric field was used to map the vector field in the inner corona, above active regions, in the current free approximation. |
| NASA分類 | SOLAR PHYSICS |
| レポートNO | 91A10435 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/352473 |
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