[vsnet-alert 20867] Re: ASASSN-17ei: new SU UMa-type DN

[Keisuke Isogai]

Re: ASASSN-17ei: new SU UMa-type DN

     Peter Starr and Josch Hambsch have reported further observations.
Indeed, the object has continued to show the modulations. The updated
period is 0.0565(1) d and the profile is a double-peak, so these modulations
may be early superhumps.
     Further observations are encouraged.

On 2017年04月03日 09:57, Sebastian Otero wrote:
> This object matches the face on spiral galaxy PGC 2394097.
> It has very different magnitudes (ranging from 11.3R (USNO-B1.0) to 18.4G (Gaia DR1)) depending on the survey's resolution.
>
> I am surprised that no mention to this galaxy has been made both in the original discovery post and the follow-up observations.
>
> Josch, can you check your images? Is it just a galactic CV superposed to the galaxy or a SN and the periodocity is spurious?
>
> Cheers,
> Sebastian
>
> ----------------------
> Sebastian Otero
> VSX Team
> American Association of Variable Star Observers
>
>
> -----Mensaje original----- From: Keisuke Isogai
> Sent: Sunday, April 2, 2017 5:33 PM
> To: vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp ; vsnet-outburst at ooruri.kusastro.kyoto-u.ac.jp
> Subject: [vsnet-outburst 20664] ASASSN-17ei: new SU UMa-type DN
>
> ASASSN-17ei: new SU UMa-type DN
>
>     Josch Hambsch has reported the observations. The object shows superhumps
> with a period of 0.058 d and amplitudes of 0.04-0.05 mag.
>
>
>
>
> ---
> El software de antivirus Avast ha analizado este correo electrónico en busca de virus.
> https://www.avast.com/antivirus
>