[en] The visible-light periodicity of the very slow nova RR Tel is inferred to vary in cycles of 350- to 410-day periods, based on the uvby photometric data, IUE FES measurements, and AAVSO visual estimates. Besides a general increase in magnitude, the visible lightcurve is also marked by two events corresponding to sudden decreases of brightness in 1949 and 1962/1963. A comparison with infrared data does not rule out the possibility of a phase shift of 10 days at most between both sets of data for a common time coverage. It is noted that additional spectroscopic and photometric observations are necessary to link the Mira components to the variations in the visible range.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Heck, A.; International Ultraviolet Explorer Observatory, Madrid, Spain ; Observatoire Astronomique, Strasbourg, France
Manfroid, Jean ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)
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