Fast evolution of QR Vul

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Christian Buil
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Fast evolution of QR Vul

Post by Christian Buil »

A rapid evolution of Be star QR Vul observed at moderate resolution (R=5000) :

Image

The ratio of the two (note charge of He I red line) :

Image

See also the topic here:
http://www.spectro-aras.com/forum/viewt ... =45&t=2386
about technical point of view.

Christian Buil
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