[vsnet-alert 24131] Re: TCP J21040470+4631129 another bright outburst!

[反保雄介]

Hi again,

Itoh-san reported another time-resolved observation around 4/1 11 PM UT,
and this shows possible superhump.
Amplitude is less than 0.1 mag, and this is consistent with Stage A
superhumps of previous rebrightenings (Tampo et al. submitted to PASJ).
Fully developed superhumps are expected to emerge within a few days.

2020年4月2日(木) 10:42 反保雄介 <tampo at kusastro.kyoto-u.ac.jp>:

> T. Vanmunster and Tomas Tordai reported time-resolved observations of this
> outburst, though no obvious variation was detected.
> This fact may suggest that TCP J2104 is still in the early phase of Stage
> A superhump.
>
> Observations are encouraged!
> Yusuke
>
> 2020年4月1日(水) 18:59 FIDRICH Róbert fidusz at gmail.com via vsnet-alert <
> vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp>:
>
>> Dear Friends,
>>
>> I can confirm the outburst ot this star. I've just detected it on my
>> DSLR images made of the CO Cygni - NGC 7000 field:
>>
>> TCP J21040470+4631129 20200401.054  10.6TG  FID  Outburst!
>>
>> Canon EOS 1000D + 180mm f/2.8 Zeiss Sonnar telehoto lens, Budapest,
>> Hungary
>>
>> Clear skies,
>>
>> Róbert Fidrich
>> Vendégcsillag-kereső (Guest Star Hunter) programme
>> HAA/VSS
>>
>>
>>
>> 2020. 04. 01. 9:47 keltezéssel, Keisuke Isogai írta:
>> > This outburst should be a superoutburst and must be
>> > showing growing superhumps now. However, we can
>> > observe this object only for 2-3 hours before sunrise.
>> > It is encouraged to observe this object on many sites.
>> >
>> > On 2020/03/31 21:33, Denis Denisenko d.v.denisenko at gmail.com via
>> > vsnet-alert wrote:
>> >> This dwarf nova in Cygnus is in outburst again on the recent 3x60-sec
>> >> unfiltered images obtained remotely with iTelescope T11 instrument in
>> >> Mayhill, New Mexico, at 11:27-11:30 UT on Mar. 31.
>> >>
>> >> TCP J21040470+4631129
>> >>    20200331.4780  11.11CV  T11  Outburst!
>> >>
>> >> As shown by the recent AAVSO data from five European observers, the
>> >> variable has not returned to the quiescent level after the conjunction
>> >> with
>> >> the Sun. The star was at 15.4-15.2 CV on Mar. 28 and Mar. 30 - the
>> >> same as
>> >> during the observations on Feb. 01-05.
>> >>
>> >> The current magnitude is similar to the maxima of 2019 Aug. 28 and
>> >> Dec. 11
>> >> superoutbursts. Both lasted about a week.
>> >>
>> >> Denis Denisenko
>> >>
>> >
>>
>
>
> --
> ----------------------------------------------
>
> 京都大学大学院理学研究科宇宙物理学教室 M2
> Kyoto University, Graduate School of Department of Astronomy, M2
> 反保 雄介 Yusuke TAMPO
> MAIL: tampo at kusastro.kyoto-u.ac.jp
>
> ----------------------------------------------
>


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京都大学大学院理学研究科宇宙物理学教室 M2
Kyoto University, Graduate School of Department of Astronomy, M2
反保 雄介 Yusuke TAMPO
MAIL: tampo at kusastro.kyoto-u.ac.jp

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