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(cba:news) CC Scl... and intermediate polars (Joe Patterson) [2020-10-17T11:29:58Z]


Hi CBAers,

Oops, I left out our campaigns on intermediate polars; I'll study and comment later on priorities among them (the list is getting big!).
Enrique, do you want to chip in re these?

And CC Scl. Gordon, Berto, and Josch have done well on this multi-periodic star this year (I think our first big year on it - the periods are still not nailed down). But Josch's coverage in the "Americas" longitude is low time resolution, and some North American observers - definitely Walt Cooney & Richard Sabo, and likely others - can get good coverage of this 17.0 mag star at high time resolution (~1 minute). Not for very long (Sculptor!), but some 3-hour runs at good time resolution would break aliases and reveal the true underlying period structure.

[OK, Richard's off the hook* - Montana! - but southern USA should be good. (*On second thought, only if he votes for Steve Bullock.)]

For those of you new to the CBA, breaking the 24-hour alias problem is one of our prime reasons for existence. You just can't nail down periods from observations at a simgle longitude (as I spent the first 10 years of my career learning). There's so much WATER in the southern hemisphere!...and many studies of periodic behavior in southern stars suffer from this uncertainty.

joe p
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