[vsnet-superoutburst 1909] XZ Eri: new data from Greg Bolt, superhump period change

[Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>]

XZ Eri: new data from Greg Bolt, superhump period change

Dear Colleagues,

   We have received new spectacular sets of XZ Eri data (4 nights) from
Greg Bolt.  The data indicate that the superoutburst has not yet entered
the rapid decline stage at least as of Feb. 6 (and possibly Feb. 7).
The object were strongly superhumping, with a noticeable beat phenomenon,
and eclipses were clearly detected, with variable depths (likely related
to the beat phase).  The superhump period initially increased during the
early half of the superoutburst, but the period turned to decrease since
Feb. 3.  Such behavior reminds us of the superhumps period changes in
WZ Sge-type dwarf novae, such as AL Com and HV Vir.

Regards,
Taichi Kato
VSNET Collaboration team

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