New Disk-Loss Phase of the Binary Be Star κ Dra

Details New Disk-Loss Phase of the Binary Be Star κ Dra New Disk-Loss Phase of the Binary Be Star κ Dra

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aspc..435..359k&link_type=abstract

Binaries - Key to Comprehension of the Universe. Proceedings of a conference held June 8-12, 2009 in Brno, Czech Republic. Edite

Astronomy and Astrophysics

Astronomy

Scientific paper

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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