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[vsnet-campaign-dn 3547] 1RXP J113123+4322.5 superhump period change

1RXP J113123+4322.5 superhump period change

Dear Colleagues,

   We have received a new data set from Jpchen Pietz (the new Kyoto and RIKEN
data have not been analyzed yet).  The most recent data clearly indicates
the decrease of the superhump amplitude.  The data also supports the
suggested period increase.  The period derivative is statistically positive,
at a rate close to dot(P)/P = 2*10^(-5).  These results indicate that
1RXP J113123+4322.5 bears same characteristics with short-period SU UMa-type
dwarf novae, such as SW UMa.  Further observations are strongly encouraged.

Regards,
Taichi Kato
VSNET Collaboration team

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