[vsnet-alert 21590] ASASSN-17ou: updated superhump period

Keisuke Isogai isogai at kusastro.kyoto-u.ac.jp
Thu Nov 16 01:14:38 JST 2017

ASASSN-17ou: updated superhump period

     Dr. Shugarov's team has reported further observations. The updated
period is 0.05684 (10) d which is longer than the period minimum but
small value in comparison to ordinary SU UMa stars.
     Further observations are encouraged.

On 2017年11月16日 00:15, Keisuke Isogai wrote:
> Re: ASASSN-17ou: new SU UMa-type DN
> I removed the noisy data and added more data, then the estimated
> period by PDM method was changed to about 0.052 d = 74.9 min.
> This value is shorter than the period minimum. Further observations
> are encouraged to confirm the period.
> On 2017年11月15日 22:33, Keisuke Isogai wrote:
>> ASASSN-17ou: new SU UMa-type DN
>>     Kyoto U. team has observed the object. The object showed superhumps
>> with a period of 0.0552 (6) d and amplitudes of 0.1-0.2 mag. The object is
>> a new SU UMa-type DN.
>>     Further observations are needed to confirm the period.

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