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arXiv · 1404.3842

AGB stars and the plate archives heritage

Roberto Nesci·Silvia Gaudenzi·Corinne Rossi·Camilla Pezzotti·Kamo Gigoyan·Nicolas Mauron
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Abstract

We report on the characterization of a number of AGB candidate stars identified with objective-prism plates of the Byurakan Observatory. Digitized photographic sky survey plates and recent CCD photometry have been used to improve the selection and distinguish variable and non-variable stars. Some comparisons among published catalog magnitudes are also made. Slit spectroscopy from the Asiago and Loiano Observatories allowed a firm spectral classification, separating C-Type, N-Type and normal M giants. Color-color plots using WISE, AKARI and 2MASS J-band data allow an efficient discrimination of spectral types, which can be used for the definition of larger statistical samples.

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Roberto Nesci, Silvia Gaudenzi, Corinne Rossi, Camilla Pezzotti, Kamo Gigoyan, Nicolas Mauron. 2014-04-15. AGB stars and the plate archives heritage. https://arxiv.org/abs/1404.3842

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