[vsnet-campaign-dn 3413] XZ Eri: superhumps and eclipses

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

XZ Eri: superhumps and eclipses

Dear Colleagues,

   We have received further high-quality data from Lew Cook, and partly
finished analyzing the Tanabe-san (VSNET Okayama), Okayama U. of Sci. team,
Torii-san (RIKEN) and Kyoto data.  On Feb. 4, the superhumps became less
prominent.  On Feb. 5, the superhump maxima were superimposed on the
eclipses, with a possibly slight increase of the amplitude.  The most
notable phenomenon is the emergence of very deep eclipses. On Feb. 5,
the depth of the eclipses reached nearly 1.6 mag!  The superhumps are
not becoming double-humped (main superhump maximum and likely secondary
superhump maximum).  We can expect a dramatic change (toward the end
of the superoutburst) of the superhumps within several days.  Please keep
watching!

Regards,
Taichi Kato
VSNET Collaboration team

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