Discovery certificate for object 2018tm
TNS Astronomical Transient Report No. 16906 [ 2018TNSTR.213....1D ]

Date Received (UTC): 2018-02-13 10:00:13
Sender: Gaia (Gaia_Bot1)
Source Group: GaiaAlerts

A. Delgado, D. Harrison, S. Hodgkin, M. van Leeuwen, G. Rixon, A. Yoldas (University of Cambridge), on behalf of Gaia Alerts team report/s the discovery of a new astronomical transient.

IAU Designation: AT 2018tm
Discoverer internal name: Gaia18ajn
Coordinates (J2000): RA = 17:49:36.090 (267.400375) DEC = -30:55:45.01 (-30.929169)
Discovery date: 2018-02-07 22:17:45 (JD=2458157.4289931)


Remarks: bright Galactic Centre transient with strong emission lines

Photometry

Discovery (first detection):
Discovery date: 2018-02-07 22:17:45
Flux: 14.72 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2017-09-23 15:14:24
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/2018tm