[vsnet-alert 22510] ASASSN-18rg: rapid fading

Keisuke Isogai isogai at kusastro.kyoto-u.ac.jp
Tue Sep 11 06:46:28 JST 2018


  ASASSN-18rg: rapid fading

     Domenico Licchelli, Geoff Stone and Itoh-san have reported further observations. The object rapidly
faded from 14.1 to 15.2 mag on Sep. 10. The fading rate is 1.6 mag/day which is consistent with the
previous value reported in vsnet-alert 22423/22500.
     The updated superhump period is 0.031896(4) d. The O-C diagram suggests that we missed growing
superhumps and the observed superhumps are stage B with almost constant value (Pdot = 0). Because
we can see clear superhumps yet, further observations are strongly encouraged.The object might show
some rebrightenings. Further snapshots are also recommended.



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