[vsnet-alert 23543] ASASSN-19ax in outburst (fwd)
Taichi Kato
tkato at kusastro.kyoto-u.ac.jp
Fri Sep 6 10:08:58 JST 2019
ASASSN-19ax in outburst (fwd)
From: "'Eddy Muyllaert' muyllaert.eddy at telenet.be [cvnet-outburst]" <cvnet-outbu
rst at yahoogroups.com>
Subject: [cvnet-outburst] ASASSN-19ax in outburst
ASASSN-19AX 20190905.9410 13.2v OUTBURST
Regards,
Eddy
===
See vsnet-alert 22936:
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, match
es 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) dis
mod=7.2 pmra=17.405(0.151) pmdec=-13.951(0.124) G=15.133 BP=15.841 RP=14.306
If this is a WZ Sge-type outburst, the interval
is too short. Observations are requested.
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