[vsnet-alert 23689] MASTER OT J234843.23+250250.4 superoutburst (since Nov. 1)

Tue Nov 5 20:39:44 JST 2019

 MASTER OT J234843.23+250250.4 (UGSU+IBWD)
(helium?) dwarf nova, very short orbital period:
https://www.aavso.org/vsx/index.php?view=detail.top&oid=358592

Recent ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S
and Kochanek et al. 2017PASP..129j4502K) data and light curve:
https://asas-sn.osu.edu/light_curves/df14d52c-2de3-4f87-9d50-c5727ca1623e

Time-resolved photometry is strongly recommended
(spectroscopy, too).

Clear skies,
Patrick
-------
     Am Montag, 4. November 2019, 13:17:34 MEZ hat Keisuke Isogai <isogai at kusastro.kyoto-u.ac.jp> Folgendes geschrieben:  

 It is unclear whether this object is a hydrogen-rich or helium-rich object.
Spectroscopic and time-resolved observations are needed.

On 2019/11/03 20:53, Patrick Schmeer pasc1312-aavso at yahoo.de via vsnet-alert wrote:
> MASTER OT J234843.23+250250.4  (UGSU+IBWD)
> AM CVn star, helium dwarf nova
> https://www.aavso.org/vsx/index.php?view=detail.top&oid=358592
>
> Recent ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S
> and Kochanek et al. 2017PASP..129j4502K) data and light curve:
> https://asas-sn.osu.edu/light_curves/cf7ec87b-b414-4f25-992c-b18ae55f2b1d
>
> Time-resolved photometry is encouraged.
>
> Clear skies,
> Patrick
>