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Paper: New Disk-Loss Phase of the Binary Be Star κ Dra
Volume: 435, Binaries – Key to Comprehension of the Universe
Page: 359
Authors: Kubát, J.; Saad, S. M.; Šlechta, M.; Yang, S.
Abstract: Recent spectroscopic observations of the binary Be star κ Dra show weaker emission in the hydrogen Hα line, which means that the circumstellar disk is decreasing. This behaviour supports the idea of an activity cycle about 22-years long.
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