TNS Astronomical Transient Report No. 260668 [ 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 2023aecu
Coordinates (J2000): RA = 00:14:21.007 (3.587529) DEC = -30:20:01.69 (-30.333803)
Discovery date: 2023-10-30 00:00:00.000 (JD=2460247.5)
Potential host galaxy: A2744+3.58761-30.33401
Host redshift: 2.39
Remarks: Host association is not robust. Assigned host's magnification is mu = 1.343 according to UNCOVER DR2
Photometry
Discovery (first detection):
Discovery date: 2023-10-30 00:00:00.000
Flux: 28.551 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/2023aecu
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 2023aecu
Coordinates (J2000): RA = 00:14:21.007 (3.587529) DEC = -30:20:01.69 (-30.333803)
Discovery date: 2023-10-30 00:00:00.000 (JD=2460247.5)
Potential host galaxy: A2744+3.58761-30.33401
Host redshift: 2.39
Remarks: Host association is not robust. Assigned host's magnification is mu = 1.343 according to UNCOVER DR2
Photometry
Discovery (first detection):
Discovery date: 2023-10-30 00:00:00.000
Flux: 28.551 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/2023aecu