[vsnet-alert 11487] PG 0149+138 = SDSS J015151.87+140047.2 period variation

Taichi Kato tkato at kusastro.kyoto-u.ac.jp
Sat Sep 19 13:36:42 JST 2009


PG 0149+138 = SDSS J015151.87+140047.2 period variation

   We have received further observations from Ian Miller and Josch Hambsch.
The data now clearly show another transition in the superhump period
around Sep. 17 (stage B-C transition).  The period derivative before this
transition was dot(P)/P = 14(2)*10^(-5).  Further observations are
encouraged to determine the superhump period during the stage C.


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