Stray-light measurements at the Observatorio del Teide

Bibcode
1990SoPh..125..211M
DOI
10.1007/BF00158401
Martinez Pillet, V.; Ruiz Cobo, B.; Vazquez, M.
Bibliographical reference

Solar Physics (ISSN 0038-0938), vol. 125, Feb. 1990, p. 211-218. Research supported by CAICYT.

Advertised on:
2
1990
Number of authors
3
IAC number of authors
3
Citations
15
Refereed citations
15
Description
A new procedure to separate the instrumental and atmospheric components of stray light is presented. It is based on the dependence of the aureole's atmospheric component on the air mass and is applied to measurements taken with the Vacuum Newton Telescope (VNT) at the Observatorio del Teide (Tenerife). The resulting instrumental part is independent of the air mass. The variation of both components with wavelength is also studied. The instrumental component shows no dependence on wavelength, in contrast to the atmospheric one which is greater in the blue than in the red. It is concluded that observations with air masses larger than two will probably be strongly affected by stray light.
Type
Refereed
Solar observatories
Sunspots
Atmospheric effects
Telescopes

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