Discovery certificate for object 2019riz
TNS Astronomical Transient Report No. 48134 [ 2019TNSTR1937....1S ]

Date Received (UTC): 2019-09-28 23:14:45
Sender: Prof. Krzysztof Stanek
Source Group: ASAS-SN

K. Z. Stanek, Z. Way, for the ASAS-SN team report/s the discovery of a new astronomical transient.

IAU Designation: AT 2019riz
Discoverer internal name: ASASSN-19xp
Coordinates (J2000): RA = 23:46:29.186 (356.62161) DEC = -73:00:04.82 (-73.00134)
Discovery date: 2019-09-26 06:00:00 (JD=2458752.75)

Potential host galaxy: GALEXASC J234629.25-730004.4

Remarks: Present in multiple epochs, approximately flat light curve, faint GALEX match with unknown redshift, might be a CV or a superluminous SN

Photometry

Discovery (first detection):
Discovery date: 2019-09-26 06:00:00
Flux: 17.6 ABMag
Filter: g-Sloan
Instrument: Paczynski
Telescope: ASASSN-Paczynski

Last non-detection:
Last non-detection date: 2019-09-22 02:38:24
Limiting flux: 18.5 ABMag
Filter: g-Sloan
Instrument: Paczynski
Telescope: ASASSN-Paczynski


Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2019riz