Categorii: Tot - art - pigments - fluorescence - spectroscopy

realizată de Farah Anwar 10 ani în urmă

285

As Light Meets Matter: Art Under Scrutinity

Art experts and scientists are examining a potentially undiscovered painting attributed to Cézanne. Wealthy art collector Edgar Collins has found a piece that is intriguing due to its stylistic similarities to Cézanne’

As Light Meets Matter: Art Under Scrutinity

mindomo by Farah Anwar

As Light Meets Matter: Art Under Scrutinity

Edgar Collins

Discovered previously unknown Cézanne ???
NO CONCLUSION

Much easier to de-authenticate a painting than to authenticate it !

NO

Dr. Andersen (IR spectroscopy): - yellow areas cadmium-based -> pigment mix 20 years after Cézanne's death - underdrawing -> Cézanne didn't have underdrawings

Dr. Andersen (IR spectroscopy): - another technique must confirm cadmium

Dr. Pruschy (UV spectrum of incident light): - polyenes oxidized over time: absorption decreases - century old paintings -> absorbance at 300nm is 0.15 - this painting -> absorbance is 0.6

DR. Philip Marden: - Dr. Pruschy focusing on isolated region - Cézanne constantly redoing paintings

Dr. Pruschy (UV spectrum of incident light): - different regions age at different rates - some part exposed to light

Dr. Simpkins (fluorescence using short-wave & long-wave UV excitation from mercury lamp): - no evidence for polyene - possible that other compound quenching polyene fluorescence

Dr. Wandless, curator of Metropolitan Museum: - polyenes could be contaminants

Dr. Pruschy (UV spectrum of incident light): - no way to know conservation of painting

YES

Dr. Simpkins (fluorescence using short-wave & long-wave UV excitation from mercury lamp): - variability in hand-ground pigments -> made in same studio & by same artist

Dr. Montoya (XRF): - no pigment anachronisms

Dr. Montoya (XRF): - cannot exlude that it is painted by 20th century genius

Dr. Philip Marden & Art Historians: - painting unsigned, not unusual - similar to another Cézanne - same visual elements - composition characteristic of 1880s constructivist phase - brushwork indistinguishable from Cézanne's

Dr. Andersen (IR spectroscopy): - presence of Cézanne's heavy strokes

interested in finding undiscovered artwork
wealthy collector of fine arts
donates artwork to public museums