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(cba:news) v1674 Her and other seasonal stars (Joe Patterson) [2022-07-04T10:19:35Z]


Hi CBAers,

OK, we've sent off our paper on V1674 Her.  Pretty amazing target.

https://arxiv.org/abs/2207.00181

Co-authors should check their email/address/etc. I know a couple of errors, but there might be more. We'll send off the proper paper ("proper" = for refereeing) in ~5-7 days.

V1674 will remain the highest priority in the next few months. But it's around 17.1 now, and the raw light curves look pretty ugly since the 8-minute signal is of such high amplitude as to look like NOISE. I've had no difficulty digging it out, and urge you to keep the faith for the next few months.

But some other of our favorites have suffered at its hands, and let's get back to them, too. Our of our common themes, large Porb changes in CVs, needs attention... and in particular these stars:
IM Nor
V617 Sgr
QR And
CI Aql
WX Cen
V Sge

These stars don't particularly need FREQUENT coverage, but you must have LONG coverage - at least 3 hrs/night, and preferably 5 or more. The reason is that we seek the *orbital* light curve. Those of you who have been working V2487 Oph should keep that one going too, until Christian and/or Maria calls you off.

I haven't said anything about U Sco here, because (a) I haven't studied anything about this latest outburst, and (b) I've been assuming that other people will do it. But so far, not much has appeared about its light curve. Some of you probably know, though - could you share it?

joe
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