[vsnet-newvar 8257] Re: [vsnet-alert 25781] ASASSN-21gk: strange light curve

Siegfried Vanaverbeke siegfriedvanaverbeke@gmail.com via vsnet-newvar vsnet-newvar at ooruri.kusastro.kyoto-u.ac.jp
Sat May 1 16:53:43 JST 2021


The AAVSO lightcurve is pretty spectacular !

Op za 1 mei 2021 om 09:51 schreef Siegfried Vanaverbeke <
siegfriedvanaverbeke at gmail.com>:

> Indeed it doesn't appear consistent with microlensing from your
> description of the lightcurve.
>
> Siegfried
>
> Op za 1 mei 2021 om 02:58 schreef Taichi Kato <
> tkato at kusastro.kyoto-u.ac.jp>:
>
>> ASASSN-21gk: strange light curve
>>
>>    Josch Hambsch has reported observatioons.
>> This object (microlensing?) has shown a very unusual
>> light curve.  Rapid rise on Apr. 22, around maximum
>> on Apr. 25, faint on Apr. 27, rapid fade on Apr. 29,
>> rapid rise on Apr. 30.  Such a variation would not
>> expected for a simple microlensing.
>> Spectroscopy is needed.
>>
>>
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