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Height of the granulation contrast inversion layer derived from a cross-correlation method

Published online by Cambridge University Press:  27 June 2012

M. Faurobert ,
C. Fang ,
T. Corbard ,
G. Ricort ,
M. Faurobert ,
C. Aime  and
S. Roudon
G. Ricort
Affiliation:
Laboratoire Lagrange, UMR 7293, Université de Nice Sophia Antipolis, CNRS, Observatoire de la Côte d’Azur, Campus Valrose, 06108 Nice, France
M. Faurobert
Affiliation:
Laboratoire Lagrange, UMR 7293, Université de Nice Sophia Antipolis, CNRS, Observatoire de la Côte d’Azur, Campus Valrose, 06108 Nice, France
C. Aime
Affiliation:
Laboratoire Lagrange, UMR 7293, Université de Nice Sophia Antipolis, CNRS, Observatoire de la Côte d’Azur, Campus Valrose, 06108 Nice, France
S. Roudon
Affiliation:
Laboratoire Lagrange, UMR 7293, Université de Nice Sophia Antipolis, CNRS, Observatoire de la Côte d’Azur, Campus Valrose, 06108 Nice, France
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Abstract

Using spectroscopic data from Hinode/SOT we have obtained monochromatic images of the solar granulation at different levels in the Fe i 603 nm lines. The granulation contrast inversion is clearly detected as a negative peak in the cross-correlation of images at the continuum level and at line center levels. Taking advantage of the perspective effect which appears in images taken out of the solar disk center, we were able to measure the formation heights of the lines and the height of the contrast inversion layer.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 55: 4th French-Chinese Meeting on Solar Physics - Understanding Solar Activity: Advances and Challenges , 2012 , pp. 79 - 82
Copyright
© EAS, EDP Sciences 2012

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