[vsnet-alert 25703] CRTS J135716.8-093238 (X-ray "nova"): new outburst? (Apr. 10)

Patrick Schmeer pasc1312-aavso@yahoo.de via vsnet-alert vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp
Sun Apr 11 03:04:50 JST 2021


CRTS J135716.8-093238 = SWIFT J1357.2-0933  (LMXB/BHXB/XN)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=252812
 
My regular check of the web page
https://lasair.roe.ac.uk/object/ZTF19aanxwrq/
revealed an apparent brightening:
CRTSJ135716.8-093238 20210410.3803 18.69g ZTF
 
The previous (dwarf nova-like) outburst was recorded from
2019 March 31 to July 28 by ZTF, see also
https://www.astronomerstelegram.org/?read=12796
 
That outburst had started around 2019 March 20, see
https://www.astronomerstelegram.org/?read=12803
 
Complete ASAS-SN Sky Patrol light curve and data:
https://asas-sn.osu.edu/sky-patrol/coordinate/bd13a4ad-5978-45c4-9043-ca9616f8a971
 
Confirmation of the current outburst and follow-up
observations are required.
 
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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