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TOPIC: Halpha RV monitoring of gamma Cas

Halpha RV monitoring of gamma Cas 7 years 8 months ago #189

Dear colleagues,
the ARAS observation community is monitoring the Halpha radial velocity of gamma Cas since 09/2006 to 09/2014.
The meanwhile grown recordings (with very different spectrographs: LHIRES, LISA, VHIRES) seems to be interesting to perform a new analysis (see the self explained attachment).

Our period deviation compared with the periods of Nemravova, Miroshnichenko and Harmanec, results with high probability from use of the different spectrographs.
Comments are welcome!

Ernst Pollmann
International Working Group ASPA
Active Spectroscopy in Astronomy
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