SOLAR MAGNETIC-FIELDS MEASUREMENTS WITH A MAGNETOOPTICAL FILTER

被引：11
作者：
CACCIANI, A
RICCI, D
ROSATI, P
RHODES, EJ
SMITH, E
TOMCZYK, S
ULRICH, RK
机构：
[1] Dipartimento di Fisica dell'Università La Sapienza, Roma, 00185
[2] Jet Propulsion Laboratory, California Institute of Technology, Pasadena, 91109, CA
[3] HAO, Boulder, Co
[4] UCLA, Los Angeles, CA
来源：
NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA C-GEOPHYSICS AND SPACE PHYSICS | 1990年 / 13卷 / 01期
关键词：
D O I：
10.1007/BF02515781
中图分类号：
学科分类号：
摘要：
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 (MOF) has recently been modified to acquire full-disk magnetograms with 2 arcsec spatial resolution. We present here a method for the correct determination of magnetic maps which are free of contamination by velocity signal. We show 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. We also used the observed line-ofsight photospheric field to map the vector field in the inner corona, above active regions, in the «current free» approximation. © 1990 Società Italiana di Fisica.
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页码：125 / 130
页数：6
相关论文
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[2]  
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[4]  
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[5]  
Rhodes E.J., Cacciani A., Garneau G., Misch T., Progovac D., Shieber T., Tomczyk S., Ulrich R.K., Bull. Am. Astron. Soc., 20, (1988)
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