(cba:news) V1315 Aquilae
jop at astro.columbia.edu
Thu Jul 30 19:22:42 EDT 2015
The last 3 nights, by Jim Jones and Orville Brettman, show that V1315
is displaying strong superhumps again - the signals with period slightly
shorter than Porb (which *defines* negative superhumps), PLUS the
long-period (beat of Porb and Pnsh) wave which is allegedly the wobble
period of the accretion disk.
Outstanding! And the reason to keep this campaign going (maybe with
some AU-NZ coverage too, to get closer to global coverage?). So,
contrary to my earlier message, the top northern target now is not GD
552, but V1315 Aql.
Jim is using the 137 star (000-BKG-531, V-13.735) as a comparison, so
that would be a good choice. Orville is using AUID 000-BKG-529, so that
might be good too.
P.S. The 2004 and 2012 campaigns on V1315 Aql very likely also showed
these signals. The results were not as precise or as certain as we
could accomplish this year, given the seasonal timing and the
improvements in our network. Maybe V1315, unlike the other "permanent"
superhumpers, really does have permanent superhumps.
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