Center to Limb Distribution of Bright Points and Faculae: First Results of an Automated Detection Algorithm

Details Center to Limb Distribution of Bright Points and Faculae: First Results of an Automated Detection Algorithm Center to Limb Distribution of Bright Points and Faculae: First Results of an Automated Detection Algorithm

Jun 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..405..211k&link_type=abstract

Solar Polarization 5: In Honor of Jan Stenflo ASP Conference Series, Vol. 405, proceedings of the conference held 17-21 Septembe

Astronomy and Astrophysics

Astronomy

Scientific paper

Center to limb variations (CLV) of photospheric Bright Points (BPs) and faculae are important to understand the fundamental relationship between these magnetic features. In this context, we present a statistical study of the center to limb distribution of BPs and faculae in active regions. Magnetic brightenings were detected at various disk positions by an automated segmentation algorithm based on joint G-band and continuum information. They were then classified as BPs or faculae according to a linear discriminant analysis, which allowed to determine the relative fraction of the two classes at each disk position.

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