[vsnet-alert 21362] ASASSN-17la: ordinary superhumps (and mass ratio)

Taichi Kato tkato at kusastro.kyoto-u.ac.jp
Fri Aug 25 09:22:32 JST 2017


ASASSN-17la: ordinary superhumps (and mass ratio)

   We have received further observations from Lew Cook
and Tamas Tordai.  The object started to show growing
superhumps on Aug. 23.  The current period (stage A)
is 0.06234(5) d.  The refined period of early superhumps
is 0.06039(2) d.  The superhump excess corresponds to
q = 0.08.  Since the orbital (superhump) period suggests
an object with multiple rebrightenings, continued
observations are requested.



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