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I should confess that I think I misnamed this thread.
The actual news is that they've confirmed that the stellar pulsation theory predictions are spot on, whilst the prediction from stellar evolution theory is at odds with the new observations.
The more accurate mass measurement, I think comes about by applying precise sensing technologies to a newly discover binary Cepheid system (the latter of which, was a new discovery).
How about "Cepheid Pulsation Theory Confirmed" as a better title ?
Cheers
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