[vsnet-newvar 7588] ASASSN-20me: temporarily fading stage between double superoutburst?

Kojiguchi Naoto kojiguchi at kusastro.kyoto-u.ac.jp
Sun Sep 27 14:49:36 JST 2020


ASASSN-20me: temporarily fading stage between double superoutburst?

    A long time has already passed since this object was detected. Large outburst amplitude of 6.1 mag. No past outburst in the ASASSN data.

     Josch Hambsch has reported observations. The object already faded rapidly. This fading might be a middle dip in double superoutburst. Possible AM CVn-type object with the WZ Sge-type outburst.

ASASSN Sky Patrol:
https://asas-sn.osu.edu/light_curves/1025d511-3882-4e1c-aae6-983b557c4970

ASASSN-20me  --- ------- 20:7:9.13 13:51:30.9 2020-09-18.25 14.61 -------  CV candidate, matches to PS1 g=21.1, g>18.6 on 2020-09-14.31, g=15.0 on 2020-09-18.24.

ASASSN-20me 20200914.31 <186g ASN
ASASSN-20me 20200918.24 150g ASN
ASASSN-20me 20200921.01 18.8CV HaC
ASASSN-20me 20200922.29 <169g ASN
ASASSN-20me 20200926.28 <167g ASN

IDs:
200709.07 +135130.9 Gaia_DR2_1806599515420424960 Plx=0.8536(0.7081) pmRA=7.427(1.026) pmDE=-7.584(0.795) G=20.2623(0.0168) BP-RP=0.7675
200709.07 +135130.7 PSO_J200709.075+135130.759 g=21.1343(0.0312) r=20.8065(0.0733) i=20.3983(0.0562) z=20.0005(0.1192) y=19.3808(0.1327)
200709.07 +135130.8 SDSS_J200709.06+135130.7 u=21.031(0.063) g=20.753(0.024) r=20.614(0.026) i=20.353(0.031) z=19.948(0.066)



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