Catégories : Tous - pigments - fluorescence - authenticity - investigation

par caroline fouad Il y a 14 années

265

Cezanne

Scientists conducted an in-depth analysis to determine the authenticity of a painting attributed to Cézanne. They examined various elements, including the palette knife technique, the bright parts of the painting, and the style of brushwork, which were consistent with Cézanne'

Cezanne

Is the painting a work of Cezanne

evidence that it is not authentic

binder based on an animal glue was widely used in the late ninteenth century until the 1940s
the painting has underdrawing which is unusual in the Cezanne paintings
UV states that it is not likely to be a hundred years old

electromagnetic spectrum helped them in their investigation

importance
detect the bright parts in the paintig
the tools that were used
the composition of the pigments
detect are any underdrawings
how old is the painting
it is a wide range of light that have different frequencies including
IR

detect anomalies beneath the painting. It also indicate a particular functional group of amino acids.

Visible light
X-ray

excites element's inner electrons. they emit x-ray frequencies of that specific element when they de-excite

UV

examining fiuorescence from the surface of the painting.full emission of spectrum can be collected from any area of the painting only from the top 50 microns

evidence that it is authentic

there are bright parts that are seen in another Cezanne paintings
there were no Ti, Ca, Ba, Mn in the painting which were not available until 1920s and 1930s
composition of the pigments returns for the period between 1839-1906
the palette knief used in the painting was characterized for Cezanne
the brushwork return to the 1800s