Reporting Group
JWST-NEXUS
Discovering Data Source
JWST-NEXUS
Discovery Date
2025-06-01 00:00:00.000
TNS AT
Y
Public
Y
Host Name
NX15464
Host Redshift
1.924
Discovery Mag
27.3
Filter
F200W-JWST
Reporter/s
Ming-Yang Zhuang (UIUC), on behalf of the NEXUS team
Light curves
▌JWST_NIRCam_F200W
Pointer position (MJD, Mag, Abs.Mag): (0.00, 0.00, 0.00)
Spectra
No Data
Light Curves
AT Reports
| ID | Time received (UT) | Sender | Reporter/s | Reporting group | Disc. Data Source | RA | DEC | Discovery date (UT) | Discovery Mag. | Filter | Related files | AT Type | Host name | Internal name | Assoc. Groups | End prop. period | Remarks | ADS Bibcode | Unreal | Auto classification |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 269559 | 2025-09-08 20:33:50 | NEXUS-bot | Ming-Yang Zhuang (UIUC), on behalf of the NEXUS team | JWST-NEXUS | JWST-NEXUS | 17:53:28.827 | +65:11:13.23 | 2025-06-01 00:00:00.000 | 27.3 | F200W-JWST | PSN | NX15464 | NXT11 | JWST-NEXUS | 2025TNSTR3612....1Z | N |
Classification Reports
No Data
Comments
Object coordinates updated
Object coordinates updated according to AT-report 269559 of Group JWST-NEXUS
Previous RA, DEC: 17:53:28.842, +65:11:13.48 (268.370175, +65.187078)
Updated RA, DEC: 17:53:28.827, +65:11:13.23 (268.3701133, +65.18700923)
Request to split: Two distinct transients merged by error
Dear TNS Admin,
I am writing to request a split for this object. Our high-resolution JWST NIRCam images clearly indicate that this single TNS entry actually contains two independent, distinct sources that happen to be very close in projection. Both sources were discovered by us (JWST-NEXUS team).
As shown in the attached file (18_multi_epoch_cutouts.pdf), the new source was discovered around MJD 61127.4 (deep ep06). In contrast, AT 2025xcw was discovered to the south-west of this new transient around MJD 60827.8 (deep ep01) and has already disappeared in the subsequent epochs.
The new source was incorrectly merged into the existing entry for AT 2025xcw due to the small angular separation (~0.3"). Could you please manually split them and assign a new TNS designation for this second transient?
Thank you for your time and help!
Best regards,
Mingyang Zhuang on behalf of the JWST-NEXUS team
Object coordinates updated
Object coordinates updated according to AT-report 311680 of Group JWST-NEXUS
Previous RA, DEC: 17:53:28.827, +65:11:13.23 (268.3701133, +65.18700923)
Updated RA, DEC: 17:53:28.842, +65:11:13.48 (268.370175, +65.187078)