[vsnet-alert 8942] 1RXS J053234.9+624755: refined superhump period

Taichi Kato tkato at kusastro.kyoto-u.ac.jp
Mon Jul 10 10:01:16 JST 2006


   Two-nights' data of 1RXS J053234.9+624755 by Pavol A. Dubovsky
submitted to the VSNET Collaboration have firmly established the
presence of 0.2-0.3 mag superhumps.

   Although the superhump period yet cannot be uniquely determined
due to the aliasing problem, we have obtained a period of 0.05696(3) d
by assuming the alias selection based on Tonny Vanmunster's period
of 0.0571(2) d for the 2005 March superoutburst.  The new, refined
period also gives a fractional period excess of 1.3%.
The raw data by Dubovsky, however, seem to favor the selection of
a longer alias, which needs to be examined with more observations.
A future refined selection of the alias might explain some of the
apparent discrepancy between the published period and the outburst
behavior, suggested by A. Imada.

Regards,
Taichi Kato
VSNET Collaboration team


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