RA/DEC (2000)
09:32:00.828 +46:06:15.30
143.0034516 +46.1042502
Type
TDE
Redshift
0.6278
Discovery ReportClassification Report
Related AstroNotes: 2025-111, 2025-131
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2025-03-19 04:38:15.002
TNS AT
Y
Public
Y
Discovery Mag
20.8565
Filter
g-ZTF
Reporter/s
Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌TDE_2025hbw - 2025-04-20 10:01:12 Gemini-N / GMOS (DESIRT)z=
▌Show H at z=vexp= km/s
▌Show He at z=vexp= km/s
▌Show He II at z=vexp= km/s
▌Show C II at z=vexp= km/s
▌Show C III at z=vexp= km/s
▌Show C IV at z=vexp= km/s
▌Show N II at z=vexp= km/s
▌Show N III at z=vexp= km/s
▌Show N IV at z=vexp= km/s
▌Show N V at z=vexp= km/s
▌Show O at z=vexp= km/s
▌Show [O I] at z=vexp= km/s
▌Show O II at z=vexp= km/s
▌Show [O II] at z=vexp= km/s
▌Show [O III] at z=vexp= km/s
▌Show O V at z=vexp= km/s
▌Show O VI at z=vexp= km/s
▌Show Na at z=vexp= km/s
▌Show Mg at z=vexp= km/s
▌Show Mg II at z=vexp= km/s
▌Show Si II at z=vexp= km/s
▌Show S II at z=vexp= km/s
▌Show Ca II at z=vexp= km/s
▌Show [Ca II] at z=vexp= km/s
▌Show Fe II at z=vexp= km/s
▌Show Fe III at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Tellurics 
▌Show Galaxy lines at z=
▌Show WR-WN at z=vexp= km/s
▌Show WR-WC/O at z=vexp= km/s
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
   
Pointer position (MJD, Mag, Abs.Mag): (0.00, 0.00, 0.00)
Spectra
 ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
20934 2025-04-20 10:01:12 Gemini-N / GMOS 1800 Xander J. Hall Jonathan Carney DESIRT tns_2025hbw_2025-04-20_10-01-12_Gemini-N_GMOS_DESIRT.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
r-ZTF P48_ZTF-Cam 2025-03-19 03:54:25 - 2025-03-19 03:54:25 2460753.6627894 - 2460753.6627894 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
481581 2025-03-19 03:54:25 2460753.6627894 20.3909 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2025-03-19 04:38:15 - 2025-04-09 09:20:01 2460753.6932292 - 2460774.8889005 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
481583 2025-04-09 09:20:01 2460774.8889005 19.2132 0.185687 ABMag g-ZTF P48_ZTF-Cam
481582 2025-03-19 04:38:15 2460753.6932292 20.8565 0.301742 ABMag g-ZTF P48_ZTF-Cam
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
251310 2025-04-09 10:16:16 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 09:32:00.828 +46:06:15.30 2025-03-19 04:38:15.002 20.8565 g-ZTF PSN ZTF25aajjeon ZTF 2025TNSTR1340....1S N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
20934 2025-05-02 05:37:57 Xander Hall Xander J. Hall (CMU), Erica Hammerstein (UC Berkeley), Jonathan Carney (UNC), Igor Andreoni (UNC), Jean Somalwar (Caltech), Xinyue Sheng (QUB), Antonella Palmese (CMU), Raffaella Margutti (UC Berkeley), Ryan Chornock (UC Berkeley), Brendan O’Connor (CMU), Vikram Ravi (Caltech) on behalf of the ZTF AGN/TDE working group and the 2DTS team. DESIRT TDE 0.6278 1 DESIRT We believe this is a high redshift, extraordinarily luminous tidal disruption event (TDE) candidate. Further observations are underway to confirm this classification. 2025TNSCR1636....1H
Spectra
ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
20934 2025-04-20 10:01:12 Gemini-N / GMOS 1800 Xander J. Hall Jonathan Carney DESIRT tns_2025hbw_2025-04-20_10-01-12_Gemini-N_GMOS_DESIRT.dat Object

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