TNS Astronomical Transient Report No. 13039 [ 2017TNSTR.859....1D ]

Date Received (UTC): 2017-08-10 10:13:36
Date made public:
Sender: Gaia_Bot1
Reporting Group: GaiaAlerts     Discovery Data Source: 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 2017gaf
Discoverer internal name: Gaia17cac
Coordinates (J2000): RA = 17:44:58.220 (266.242583) DEC = -29:47:54.10 (-29.798361)
Discovery date: 2017-08-05 07:58:04.000 (JD=2457970.8319907)


Remarks: decline in very red Galactic Centre source. Coincident with X-ray source CXOGCS J174458.2-294753

Photometry

Discovery (first detection):
Discovery date: 2017-08-05 07:58:04.000
Flux: 20.6 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft

Last non-detection:
Last non-detection date: 2017-04-28 02:19:40
Limiting flux: 21.5 ABMag
Filter: G-Gaia
Instrument: Gaia-photometric
Telescope: Gaia Spacecraft


Details of the new object can be viewed here: https://www.wis-tns.org/object/2017gaf