[vsnet-newvar 8205] ASASSN-21du rebrightening

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

 ASASSN-21du (UGSU:)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=2217316
 
ZTF light curve, data, and images (via Lasair):
https://lasair.roe.ac.uk/object/ZTF21aapvoqy/
ASASSN-21du 20210406.4936 20.27zr ZTF
ASASSN-21du 20210409.4425 18.81zr ZTF
 
Recent ASAS-SN Sky Patrol light curve and data:
https://asas-sn.osu.edu/sky-patrol/coordinate/b780ce6c-539d-4f14-9541-d58a5415be6f
ASASSN-21du 20210408.496 <18.24g ASN
 
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
Lasair:
- Smith et al., 2019RNAAS...3...26S
Zwicky Transient Facility (ZTF):
- Masci et al., 2019PASP..131a8003M
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     Am Sonntag, 4. April 2021, 19:18:24 MESZ hat Patrick Schmeer pasc1312-aavso at yahoo.de via vsnet-alert <vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp> Folgendes geschrieben:  
 
 ASASSN-21du  (UG)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=2217316

ZTF light curve, data, and images (via Lasair):
https://lasair.roe.ac.uk/object/ZTF21aapvoqy/
ASASSN-21du 20210318.4769 16.47zr ZTF
ASASSN-21du 20210318.5156 16.35zg ZTF
ASASSN-21du 20210322.5049 16.95zr ZTF
ASASSN-21du 20210325.4072 17.14zr ZTF
ASASSN-21du 20210325.4365 17.21zg ZTF
ASASSN-21du 20210329.4442 17.60zr ZTF
ASASSN-21du 20210329.5009 17.60zg ZTF
ASASSN-21du 20210401.4766 17.88zr ZTF
ASASSN-21du 20210401.4968 17.69zg ZTF
ASASSN-21du 20210404.4989 19.88zr ZTF

Recent ASAS-SN Sky Patrol light curve and data:
https://asas-sn.osu.edu/sky-patrol/coordinate/ee4ccd58-db85-45d9-b6fe-9563fbcb30cf

The long outburst (superoutburst?) started between 2021 April 8 and 13.
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
Lasair:
- Smith et al., 2019RNAAS...3...26S
Zwicky Transient Facility (ZTF):
- Masci et al., 2019PASP..131a8003M
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