[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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