[vsnet-campaign-dn 14673] PQ And superhumps

Taichi Kato tkato at kusastro.kyoto-u.ac.jp
Mon Jul 20 15:59:07 JST 2020


PQ And superhumps

   Nataly Katysheva and Sergey Shugarov team has reported
time-resolved observations on three nights on July 13-15
(flat part of the rebrightening).  The object evidently
show superhump-type variations, but the period was
difficult to determine.  Relying on the 1.7-hr orbital period
by Schwarz et al. (2004), which was suggested from
a radial-velocity study on a baseline of 2.1 hr,
the likely period is 0.06802(7) d, allowing aliases
such as 0.06371(6) d or 0.07293(9) d.
Shorter periods such as 0.05986(7) d, 0.05646(6) d
are still possible.



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