Discovery certificate for object 2019oum
TNS Astronomical Transient Report No. 45324 [ 2019TNSTR1636....1H ]

Date Received (UTC): 2019-08-27 16:30:57
Sender: Gaia (Gaia_Bot1)
Source Group: GaiaAlerts

S.T. Hodgkin, E. Breedt, A. Delgado, D.L. Harrison, M. van Leeuwen, G. Rixon, T. Wevers, A. Yoldas (IoA Cambridge), N. Ihanec, K. Kruszyńska, K.A. Rybicki, Ł. Wyrzykowski (Warsaw University Astronomical Observatory), D. Eappachen, Z. Kostrzewa-Rutkowska (SRON/RU), G. Marton (Konkoly Observatory), on behalf of the Gaia Alerts team report/s the discovery of a new astronomical transient.

IAU Designation: AT 2019oum
Discoverer internal name: Gaia19dtk
Coordinates (J2000): RA = 18:41:43.060 (280.429417) DEC = -28:29:00.96 (-28.4836)
Discovery date: 2019-08-25 02:24:00 (JD=2458720.6)


Remarks: 0.5 mag rise in a Bulge star - candidate microlensing event

Photometry

Discovery (first detection):
Discovery date: 2019-08-25 02:24:00
Flux: 18.45 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2019-02-19 23:19:40
Limiting flux: 21.5 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft


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