TNS Astronomical Transient Report No. 260670 [ 2025TNSTR2492....1D ]
Date Received (UTC): 2025-06-30 19:30:53
Date made public:
Sender: magnif_bot
Reporting Group: MAGNIF Discovery Data Source: MAGNIF
C. DeCoursey, on behalf of the MAGNIF collaboration report/s the discovery of a new astronomical transient.
IAU Designation: AT 2023aecw
Coordinates (J2000): RA = 00:14:22.109 (3.592119) DEC = -30:22:00.35 (-30.366764)
Discovery date: 2023-10-30 00:00:00.000 (JD=2460247.5)
Potential host galaxy: A2744+3.59212-30.36676
Host redshift: 2.66
Remarks: Host magnification is mu = 1.870 according to UNCOVER DR2. Appears to be a nuclear transient
Photometry
Discovery (first detection):
Discovery date: 2023-10-30 00:00:00.000
Flux: 27.069 ABMag
Filter: Other-
Instrument: NIRCam
Telescope: James Webb Space Telescope
Remarks: Reported photometry comes from averaging F182M and F210M photometric measurements. We performed this averaging to create a pseudo-F200W measurement to compare against UNCOVER's F200W photometry. Filter is JWST - NIRCam-F182M/F210M.
Last non-detection:
Archival info: Other
Remarks: This source was not detected in the Ultra-deep NIRCam and NIRSpec Observations Before the Epoch of Reionization images (UNCOVER; Cycle 1, GO 2561; https://jwst-uncover.github.io/).
Details of the new object can be viewed here: https://www.wis-tns.org/object/2023aecw
Date Received (UTC): 2025-06-30 19:30:53
Date made public:
Sender: magnif_bot
Reporting Group: MAGNIF Discovery Data Source: MAGNIF
C. DeCoursey, on behalf of the MAGNIF collaboration report/s the discovery of a new astronomical transient.
IAU Designation: AT 2023aecw
Coordinates (J2000): RA = 00:14:22.109 (3.592119) DEC = -30:22:00.35 (-30.366764)
Discovery date: 2023-10-30 00:00:00.000 (JD=2460247.5)
Potential host galaxy: A2744+3.59212-30.36676
Host redshift: 2.66
Remarks: Host magnification is mu = 1.870 according to UNCOVER DR2. Appears to be a nuclear transient
Photometry
Discovery (first detection):
Discovery date: 2023-10-30 00:00:00.000
Flux: 27.069 ABMag
Filter: Other-
Instrument: NIRCam
Telescope: James Webb Space Telescope
Remarks: Reported photometry comes from averaging F182M and F210M photometric measurements. We performed this averaging to create a pseudo-F200W measurement to compare against UNCOVER's F200W photometry. Filter is JWST - NIRCam-F182M/F210M.
Last non-detection:
Archival info: Other
Remarks: This source was not detected in the Ultra-deep NIRCam and NIRSpec Observations Before the Epoch of Reionization images (UNCOVER; Cycle 1, GO 2561; https://jwst-uncover.github.io/).
Details of the new object can be viewed here: https://www.wis-tns.org/object/2023aecw