THE INCLINATION OF NETWORK MAGNETIC-FIELDS

被引：33

作者：

ALMEIDA, JS ^{[1
]}

PILLET, VM ^{[1
]}

机构：

[1] NATL CTR ATMOSPHER RES,HIGH ALTITUDE OBSERV,BOULDER,CO 80307

来源：

ASTROPHYSICAL JOURNAL | 1994年 / 424卷 / 02期

关键词：

POLARIZATION; SUN; ACTIVITY; MAGNETIC FIELDS;

D O I：

10.1086/173952

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have observed the linear polarization of 21 bright grains of the photospheric network close to the disk center. The linear polarization of Fe I 6302.5 angstrom was always lower than 1.9 x 10(-3) (referred to continuum intensity). This level of linear polarization implies a very small magnetic field inclination with respect to the vertical, which we estimate below 10-degrees. Our finding is in apparent disagreement with previous studies which claim large inclinations; however, it fulfills theoretical expectations. Plage regions close to sunspots might show inclination, but isolated network elements do not.

引用

页码：1014 / 1021

页数：8

共 33 条

[1] ALMEIDA JS, 1992, SOL PHYS, V137, P1, DOI 10.1007/BF00146572
[2] THE INSTRUMENTAL POLARIZATION OF A GREGORY-COUDE TELESCOPE
ALMEIDA, JS
PILLET, VM
WITTMANN, AD
[J]. SOLAR PHYSICS, 1991, 134 (01) : 1 - 13
[3] ALMEIDA JS, 1992, ASTROPHYS J, V398, P359, DOI 10.1086/171861
[4] PERTURBATIVE SOLUTION OF TRANSFER EQUATIONS FOR STOKES PARAMETERS IN A MAGNETIC-FIELD
DEGL'INNOCENTI, EL
DEGL'INNOCENTI, ML
[J]. SOLAR PHYSICS, 1973, 31 (02) : 299 - 305
[5] DEINZER W, 1984, ASTRON ASTROPHYS, V139, P426
[6] Elmore D. F., 1988, Proceedings of the SPIE - The International Society for Optical Engineering, V891, P84
[7] MULTI-CHANNEL MAGNETOGRAPH OBSERVATIONS .3. FACULAE
FRAZIER, EN
[J]. SOLAR PHYSICS, 1971, 21 (01) : 42 - &
[8] Gurtovenko E. A., 1981, Astronomy & Astrophysics Supplement Series, V46, P239
[9] PHOTOSPHERIC BARIUM SPECTRUM - SOLAR ABUNDANCE AND COLLISION BROADENING OF BA II LINES BY HYDROGEN
HOLWEGER, H
MULLER, EA
[J]. SOLAR PHYSICS, 1974, 39 (01) : 19 - 30
[10] INIESTA JCD, 1990, ASTRON ASTROPHYS, V227, P591

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