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TOPIC: Halpha EW Monitoring of P Cyg

Halpha EW Monitoring of P Cyg 7 years 7 months ago #192

At the LBV star P Cyg the ARAS group is observing at present a more or less evenly descend to a historical minimum of the Halpha EW (see attached Fig.). This phenomenon is accompanied of a decreasing of the time distance between the separated minima.
We (the world-wide located P Cyg observers) are trying to continue this monitoring as long as it is possible, in order to follow the observed phenomenon.
Any comments are welcome!!

Ernst Pollmann
International Working Group ASPA
Active Spectroscopy in Astronomy

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