[vsnet-alert 25976] IL Lup outburst (since June 11)

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

IL Lupi = 4U 1543-47  (LMXB/BHXB)
Orbital period: 1.1167 d, spectral type: A2V+BH
https://www.aavso.org/vsx/index.php?view=detail.top&oid=17822
 
"MAXI/GSC detection of a new outburst from the black hole
binary 4U 1543-47" (ATel #14701):
https://www.astronomerstelegram.org/?read=14701
 
"The brightest optical outburst of 4U 1543-47" (ATel #14721):
https://www.astronomerstelegram.org/?read=14721
 
Las Cumbres Observatory (LCO) optical light curve (2008-2021):
https://xbnews.abudhabi.nyu.edu/static/data/website.plots/quick.results.4U_1543-47.Jun2021.png
 
Recent ASAS-SN Sky Patrol light curve and data (contaminated):
https://asas-sn.osu.edu/sky-patrol/coordinate/75b21eb9-243f-4212-a646-8178d01eff0d
 
Follow-up observations are encouraged.
 
Clear skies,
Patrick
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References:
All-Sky Automated Survey for Supernovae (ASAS-SN) Sky Patrol:
- Shappee et al., 2014ApJ...788...48S
- Kochanek et al., 2017PASP..129j4502K