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GCN Circular 34540

Subject

GRB 230824A is likely a Galactic Transient: Swift J1727.8-1613

Date

2023-08-24T18:57:10Z (a year ago)

From

Jamie Kennea at Penn State U <jak51@psu.edu>

Via

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Jamie A. Kennea (PSU) reports on behalf of the Swift Team

GRB 230824A (GCN #34537Loading...
 
 ) reported by Swift/BAT, previously triggered INTEGRAL at 12:20UT (Weak trigger #10373,0) 100 mins before the BAT trigger,  and continued to trigger INTEGRAL several times after the BAT trigger. Given this, and its location in the Galactic Bulge (l,b = 8.64, 10.241), we now believe this is a likely Galactic Transient and not a GRB.

We therefore rename this source Swift J1727.8-1613. Observations to confirm the nature of this transient are requested. Swift will not observe this transient until at least  August 27, 2023 due to the proximity of the Moon.