[vsnet-alert 22484] Re: ASASSN-18rg: rebrightening

[Kojiguchi Naoto]

Re: ASASSN-18rg: rebrightening

    Additional information.

ASASSN-18rg is considered to be a period bouncer with an extremely low 
mass ratio.
This is expected from the form of the outburst and the long duration of 
the dip phase before the rebrightening (longer than two weeks). This 
outburst will be classified as type-E/double superoutburst.

This object had not been reported since Aug. 29.
So we don't know when the object underwent this rebrightening.
We expect to detect growing (stage A) superhumps, but perhaps stage A 
superhumps may be observable only now.

If "stage A superhump" can be observed, the mass ratio can be estimated. 
Therefore, further time resolution observations are strongly encouraged.


On 2018/09/05 23:01, Kojiguchi Naoto wrote:
> ASASSN-18rg: rebrightening
> 
>     Now, Kyoto U. team has observed a rebrightening (about 14 mag). This 
> rebrightening may be double superoutbursts. Further observations are 
> strongly encouraged.
>