[vsnet-alert 22705] Re: ASASSN-18yi: fading rate changed?

Kojiguchi Naoto kojiguchi at kusastro.kyoto-u.ac.jp
Fri Nov 9 07:19:22 JST 2018


I'm sorry I made a mistake. The fading rate seems to
have changed on 5 Nov.

On 2018/11/09 6:27, Kojiguchi Naoto wrote:
> ASASSN-18yi: fading rate changed?
> 
> Itoh-san and Berto Monard reported the observations.
> This object had shown an unusual slow fading rate of
> 0.02 mag/d for 16 days from detection.
> 
> According to the ASAS-SN data, the fading rate seems
> to have changed from 0.02 to 0.2 mag/d on 9 Nov.
> The latter value is consistent with a usual fading
> rate of superoutbursts.
> However, nobody reported time-resolved observations
> for about four days, and we cannot confirm whether it
> is true. We also don't know the present states of
> superhumps and eclipses.
> According to the Gaia and the CRTS data, this object
> in quiescence might not show eclipses.
> 
> As reported in [vsnet-alert 22667], this object shows
> a very unique state. Therefore, further observations
> are strongly encouraged.
> 



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