[vsnet-campaign-dn 9145] V1159 Ori: negative superhumps?

[Taichi Kato]

V1159 Ori: negative superhumps?

   During the later half of December, the intervals of normal
outbursts lengthened (to 6, in contrast to the previous
supercycle) and the outbursts are becoming "inside-out".
This may be some indication of "L-type" cycle
as in V1504 Cyg (see Osaki and Kato arXiv 1212.1516).
There appears to be a weak indication of negative superhumps
around P=0.061 d, but this requires confirmation by further
observations.  Continued observations are still encouraged,
particularly multi-longitude observations because the detection
of negative superhumps is notoriously affected by aliasing.
A complete summary of observations will be reported by
Ohshima-san.