[vsnet-alert 24244] Re: SDSS J124058.03-015919.2 outburst

[Taichi Kato]

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.