The instrumental polarization of a Gregory-coude telescope

Bibcode
1991SoPh..134....1A
Sanchez Almeida, J.; Martinez Pillet, V.; Wittmann, A. D.
Referencia bibliográfica

Solar Physics (ISSN 0038-0938), vol. 134, July 1991, p. 1-13. CICYT-supported research.

Fecha de publicación:
7
1991
Número de autores
3
Número de autores del IAC
2
Número de citas
42
Número de citas referidas
34
Descripción
A theoretical model of the polarization properties of a Gregory-coude telescope is calculated to predict the behavior 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. An uncertainty in its predictions of about 10 percent, which is produced by the uncertainties of the (complex) refractive index of the metallic layers covering the mirrors, is estimated. The paper concludes by briefly considering the way in which the plain telescope changes the Stokes' profiles.
Tipo
Con árbitro
Telescopios

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