variable stars; photometry; data analysis; Be star; Halpha emission
Abstract :
[en] ζ Tau is a well known binary comprising a Be star. Its decretion disk changes with time and we report here on the latest variability behaviour thanks to new amateur data. The cyclic variability observed in the previous years and dominated by the modulated central absorption continues. Only little asymmetries are detected for the Hα line.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Nazé, Yaël ; Université de Liège - ULiège > Département d'astrophysique, géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE)
