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On the Estimation of Atmospheric Aerosol Extinction Parameters from Measurements in the Johnson–Cousins Photometric System

Published online by Cambridge University Press:  02 January 2013

F. Sánchez-Bajo*
Affiliation:
Departamento de Física Aplicada, Escuela de Ingenierías Industriales, Universidad de Extremadura, Avda de Elvas s/n, 06006 Badajoz, Spain
D. Rodríguez-Estecha Álvarez
Affiliation:
Departamento de Física Aplicada, Escuela de Ingenierías Industriales, Universidad de Extremadura, Avda de Elvas s/n, 06006 Badajoz, Spain
*
BCorresponding author. Email: [email protected]
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Abstract

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A procedure to estimate the aerosol extinction parameters of Angstrom's formula using data acquired with photometric broadband standard filters, the Johnson–Cousins filters, is presented. The method is based on the transformation of the heterochromatic magnitudes to the equivalent mean wavelength monochromatic magnitudes by an iterative approach, correcting subsequently the effects of water-vapour extinction in the longer-wavelength filters. As an example, the procedure has been used in the determination of the extinction parameters at the location of our observatory using the filters B, V, Rc and Ic on the night of 2008 August 28.

Type
Research Article
Copyright
Copyright © Astronomical Society of Australia 2012

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