Centre of digitization of photographic plates
and reduction of old observations
NAROO (New Astrometric Reduction of Old Observations)


Be Stars:

It will be possible to digitize the large collection of variable stars spectra (Be stars). The data baseBeSS, available at LESIA, provides a catalogue of all known (~2000) Be stars and owns (~130 000) available spectra of these objects. The study of the long-term spectroscopic variability of Be stars is very important to understand their sporadic ejection of matter. At the present time, the data start only in 1990 and the analysis of plates from 1950 to 1980 will enlarge the time series of data and will allow to detect a period in the ejections.

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Last update: April 16, 2017
  Contact: naroo (at) imcce.fr