Resent Studies
Monitoring the ejection behavior of Rho Cas: Hα line flux and radial velocity
Period Analysis of the Hα Flux at P Cygni (December 2023)
Correlation Hα versus HeI6678 in gamma Cas (1995 - 2021)
Correlation Hα versus HeI6678 in gamma Cas (December 2023)
Periastron Passages of Pleione
Pleione on the way to leave the Be-shell-phase to be a pure Be star Jan./Feb. 2024
Hα central depression (CD) of zeta Tau versus disk density enhencement
Disk nodding versus V/R-phase and central depression in zeta Tau
Monitoring the 2017–2019 Eclipse of VV Cephei
The current state of the observation results seems to explain the periodic time behavior of the equivalent width EW and the flux of the Hα emission.
Based on these new results, a new geometric structure of the emission sources has been developed in collaboration with Prof. Dr. Ph. Bennett (Dalhousie University, Halifax, NS, Canada).
Animation: Precession of the B star disk axis
