Re: ASASSN-19yt outburst (since Mar. 16)
> The current outburst began on 2022 March 16 according to ATLAS
> forced photometry data. A rapid fading started on March 26.
> The outburst duration is shorter than that of a standard UGSU
The light curve is that of an SS Cyg star and I had
classified as such.
Recent ASAS-SN Sky Patrol light curve and data:
ZTF light curve, data, and images (via Lasair):
The current outburst began on 2022 March 16 according to ATLAS
forced photometry data. A rapid fading started on March 26.
The outburst duration is shorter than that of a standard UGSU
A previous outburst was observed from 2019 October 5 to 13.
Follow-up observations are encouraged.
All-Sky Automated Survey for Supernovae (ASAS-SN) Sky Patrol:
- Shappee et al., 2014ApJ...788...48S
- Kochanek et al., 2017PASP..129j4502K
Asteroid Terrestrial-impact Last Alert System (ATLAS):
- Tonry et al., 2018PASP..130f4505T
- Smith et al., 2019RNAAS...3...26S
Zwicky Transient Facility (ZTF):
- Masci et al., 2019PASP..131a8003M
T. Kato wrote (vsnet-alert 23615, 2019 October 9):
There is an XMM source. The present amplitude would suggest a dwarf nova.
061801.4 +222231 (2000.0) 2XMM_J061801.4+222231 err=0.8 5.523e-14 0.87 0.29 -0.22 -0.34
TCP J05454551+5954307: early superhumps
Tamas Tordai, Itoh-san, Tonny Vanmunster,
Stephen Brincat, Kiyota-san and Josch Hambsch have
reported observations. This object has been now
confirmed as a WZ Sge stars (confirming the earlier
report). Double-wave early superhumps with
a full amplitude of 0.10 mag and a period of 0.05631(3) d