[vsnet-alert 22936] ASASSN-19ax: interesting (secondary-dominated?) dwarf nova

[Taichi Kato]

ASASSN-19ax: interesting (secondary-dominated?) dwarf nova

   The 2019 January outburst looks like a superoutburst
(with a dip + rebrightening?).
Past outbursts were short and resembled normal outbursts.
The object is red and the amplitude was too small
for an SU UMa star (presence of a bright unresolved
companion?)

ASASSN-19ax 	--- 	------- 	23:34:58.56 	40:16:9.2 	2019-01-12.15 	14.84 	SDSS 	DSS 	VIZIER 	------- 	red star outburst, matches to PS1 G=16.1, previous outburst in CRTS, g>15.8 on 2018-12-23.21, g=13.1 on 2018-12-31.23, g=13.9 on 2019-01-03.22, g=15.2 on 2019-01-12.15, g>17.7 on 2019-01-13.15.

ASAS-SN data:
https://asas-sn.osu.edu/light_curves/7d96224b-6012-44db-93ca-7536293a6c56

IDs:
2MASS 233458.645 +401609.01 (2000.0) 13.292 12.639 12.515 
233458.670 +401608.85 (2000.0) Gaia_DR2_1920562869145250688 plx=3.687(0.124) dismod=7.2 pmra=17.405(0.151) pmdec=-13.951(0.124) G=15.133 BP=15.841 RP=14.306