[vsnet-outburst 24582] Re: ASASSN-20aj (12.1 mag, in Hydra)

[Patrick Schmeer pasc1312-aavso@yahoo.de via vsnet-outburst]

 ASASSN-20aj (UGWZ:)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=1540283
 
Recent ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S
and Kochanek et al. 2017PASP..129j4502K) data and light curve:
https://asas-sn.osu.edu/light_curves/92e4322f-a2b8-4432-98de-2bfacbaf3813

Looks like a superoutburst.
 
Josch Hambsch (HMB) reported observations for Jan. 14 and 21:
https://www.aavso.org/apps/webobs/results/?star=ASASSN-20aj
 
Further time-resolved photometry is urgently required.
 
Clear skies,
Patrick
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     Am Montag, 13. Januar 2020, 21:34:23 MEZ hat Patrick Schmeer pasc1312-aavso at yahoo.de via vsnet-alert <vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp> Folgendes geschrieben:  
 
  ASASSN-20aj (UGWZ:)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=1540283

Spectroscopy and time-resolved photometry are urgently required.
 
Clear skies,
Patrick
-------
    Am Montag, 13. Januar 2020, 21:27:14 MEZ hat Kojiguchi Naoto <kojiguchi at kusastro.kyoto-u.ac.jp> Folgendes geschrieben:  
 
 ASASSN-20aj

    Large amplitude outburst of 7.7 mag. Possible WZ Sge-type object.

ASASSN-20aj  --- ------- 12:13:47.23 -29:21:51.9 2020-01-10.33 11.71 -------  CV candidate, matches to
PS1 g=19.9, g>17.4 on 2020-01-08.47, g=12.1 on 2020-01-10.33, g=12.2 on 2020-01-11.30, g=12.5 on 2020-01-12.47,
g=16.0 on 2020-01-13.47.

ASASSN-20aj 20200108.47 <174g ASN
ASASSN-20aj 20200110.33 121g ASN
ASASSN-20aj 20200111.30 122g ASN
ASASSN-20aj 20200112.47 125g ASN
ASASSN-20aj 20200113.47 160g ASN <- ?
ASASSN-20aj 20200113.47 125g ASN.Sky_Patrol

ASAS-SN Sky Patrol
https://asas-sn.osu.edu/light_curves/e7e56440-f858-43b6-ba3d-d1f90dd8cd2b
https://asas-sn.osu.edu/light_curves/2aa28f1b-6ab1-4bd0-9d93-be243710f7f1

IDs:
121347.19 -292152.45 Gaia_DR2_3474010479490950656 plx=0.7148(0.5023) pmRA=-5.716(0.714)
    pmDE=-8.815(0.720) Gmag=19.8007(0.0068) BP=19.7851(0.0467) RP=19.5541(0.0740)
121347.22 -292152.69 GALEX_J121347.2-292152 FUV=19.9565(0.2320) NUV=19.8961(0.0923)
121347.19 -292152.57 PS1_72761834466262796 g=19.8565(0.0207) r=19.8375(0.0131)
    i=19.9717(0.0602) z=19.7964(0.0944) y=19.6867(0.0945)

    
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