THE INSTRUMENTAL POLARIZATION OF A GREGORY-COUDE TELESCOPE

被引：47

作者：

ALMEIDA, JS ^{[1
]}

PILLET, VM ^{[1
]}

WITTMANN, AD ^{[1
]}

机构：

[1] UNIV STERNWARTE GOTTINGEN,W-3400 GOTTINGEN,GERMANY

来源：

SOLAR PHYSICS | 1991年 / 134卷 / 01期

关键词：

SOLAR ACTIVE REGIONS; CIRCULAR-POLARIZATION; MAGNETIC-FIELD; PHASE RETARDATION; POLARIMETRY; TOWER; MODEL;

D O I：

10.1007/BF00148738

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calculate a theoretical model of the polarization properties of a Gregory-Coude telescope to predict the behaviour of the German Gregory-Coude' Telescope installed at the Observatorio del Teide (Spain). Measurements of the real effects produced by this telescope acting upon light of known polarization are compared with the model. We estimate an uncertainty in its predictions of about 10%, which is produced by the uncertainties of the (complex) refractive index of the metallic layers covering the mirrors. The paper concludes by briefly considering the way in which the plain telescope changes the Stokes' profiles.

引用

页码：1 / 13

页数：13

共 24 条

[1]

ALMEIDA JS, 1988, ASTRON ASTROPHYS, V201, pL37

[2] MEASUREMENT OF VECTOR MAGNETIC-FIELDS .1. THEORETICAL APPROACH TO THE INSTRUMENTAL POLARIZATION OF THE KODAIKANAL SOLAR TOWER [J].