[vsnet-newvar 8260] Re: [vsnet-alert 25784] Re: ASASSN-21gk: strange light curve

Sat May 1 21:22:28 JST 2021

So please continue your observations.

Op za 1 mei 2021 om 12:52 schreef Josch Hambsch <hambsch at telenet.be>:

> It seems to have a 1.33 day period so far.
>
> Josch
>
> -----Original Message-----
> From: vsnet-alert [mailto:
> vsnet-alert-bounces at ooruri.kusastro.kyoto-u.ac.jp] On Behalf Of Siegfried
> Vanaverbeke siegfriedvanaverbeke at gmail.com via vsnet-alert
> Sent: Samstag, 1. Mai 2021 09:54
> To: Taichi Kato
> Cc: vsnet-newvar at ooruri.kusastro.kyoto-u.ac.jp;
> vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp
> Subject: [vsnet-alert 25784] Re: ASASSN-21gk: strange light curve
>
> 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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