Hi all!
I wonder whether anyone here has been looking at the CV candidate ASASSN-V J205457.73+515731.9 of ATel #13824,13825,13829
I have requested an AAVSO sequence for it which is now available. Note that the comp stars are all considerably redder, and also there is another source within only ~7" separation. It's an easy target at ca 14.5 mag (V).
I've put my first obs data into the AAVSO database. Needless to say I cannot do any long runs on this (or anything else) from Germany at this time of year, but it seems obvious that there is very significant QPO-like variability on timescales of 10s of minutes, with a peak in the periodogram at ca 24 minutes.
I certainly don't want to distract CBAers from program stars, I was just wondering whether this is an interesting target at all or just boring stuff (it seems to be in a relatively rare state now that might reveal things not obvious when it is in its usual state of stable accretion??, and because the authors of ATEL #13824 had doubts about its classification). I have two more short data stretches that I'll reduce soon.
CS
HB
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Heinz-Bernd Eggenstein, Scientific Software Engineer
Max Planck Institute for Gravitational Physics
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