[vsnet-alert 24247] Re: SDSS J124058.03-015919.2 outburst

[Keisuke Isogai]

> ZTF recorded a peak and following long-lasting bright state
> in 2018:
Such a fading tail is often seen after a WZ Sge-type superoutburst.
Time-series data in this state may show early superhumps!

On 2020/04/30 12:01, Taichi Kato wrote:
> Re: SDSS J124058.03-015919.2 outburst
>
>     Past outbursts:
>
>    YYYYMMDD(UT)   mag  observer
>    20050315.2417 13.563V  (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))
>    20050317.2551 13.802V  (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))
>
> single detection
>    20090804.9929 13.833V  (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))
>
>    YYYYMMDD(UT)   mag  observer
>    20140709.010  13.11V  (ASAS-SN survey (Shappee+ 2014; Kochanek+ 2017))
>    20140709.926  13.52C  (Eddy Muyllaert)
>
>    ZTF recorded a peak and following long-lasting bright state
> in 2018:
>
>    YYYYMMDD(UT)   mag  observer
>    20180326.3056 19.592zg  (Zwicky Transient Facility (Masci et al., 2019))
>    20180329.3430 19.585zg  (Zwicky Transient Facility (Masci et al., 2019))
>    20180329.3704 19.442zg  (Zwicky Transient Facility (Masci et al., 2019))
>    20180406.3485 13.960zr  (Zwicky Transient Facility (Masci et al., 2019))
>    20180409.2817 17.310zr  (Zwicky Transient Facility (Masci et al., 2019))
>    20180409.3039 17.488zr  (Zwicky Transient Facility (Masci et al., 2019))
>    20180416.2661 16.690zr  (Zwicky Transient Facility (Masci et al., 2019))
>    20180416.2772 16.649zr  (Zwicky Transient Facility (Masci et al., 2019))
>    20180421.2715 16.909zg  (Zwicky Transient Facility (Masci et al., 2019))
>    20180425.2075 17.388zr  (Zwicky Transient Facility (Masci et al., 2019))
>    20180505.1683 17.400zr  (Zwicky Transient Facility (Masci et al., 2019))
>    20180505.2299 17.523zg  (Zwicky Transient Facility (Masci et al., 2019))
>    20180511.2293 17.685zg  (Zwicky Transient Facility (Masci et al., 2019))
>    20180511.2311 17.575zr  (Zwicky Transient Facility (Masci et al., 2019))
>    20180518.2420 17.625zr  (Zwicky Transient Facility (Masci et al., 2019))
>    20180521.2529 17.560zr  (Zwicky Transient Facility (Masci et al., 2019))
>    20180529.1654 16.647zg  (Zwicky Transient Facility (Masci et al., 2019))
>    20180529.2926 17.575zr  (Zwicky Transient Facility (Masci et al., 2019))
>    20180601.1668 17.513zr  (Zwicky Transient Facility (Masci et al., 2019))
>    20180601.2388 17.560zg  (Zwicky Transient Facility (Masci et al., 2019))
>    20180606.2108 17.647zg  (Zwicky Transient Facility (Masci et al., 2019))
>    20180609.2096 17.502zg  (Zwicky Transient Facility (Masci et al., 2019))
>    20180609.2325 17.334zr  (Zwicky Transient Facility (Masci et al., 2019))
>    20180612.1897 17.827zr  (Zwicky Transient Facility (Masci et al., 2019))
>    20180615.2115 17.977zg  (Zwicky Transient Facility (Masci et al., 2019))
>    20180618.2529 17.540zr  (Zwicky Transient Facility (Masci et al., 2019))
>    20180624.1737 16.428zg  (Zwicky Transient Facility (Masci et al., 2019))
>    20180624.2356 16.867zr  (Zwicky Transient Facility (Masci et al., 2019))
>    20180627.2345 17.978zr  (Zwicky Transient Facility (Masci et al., 2019))
>
>     Time-resolved photometry is naturally urgently requested.