RA/DEC (2000)
13:53:34.683 -42:48:16.54
208.394513255 -42.804595121
Type
SN Ic-BL
Redshift
0.2
Reporting Group
STARGATE
Discovering Data Source
None
Discovery Date
2025-03-04 02:18:49.000
TNS AT
Y
Public
Y
Discovery Mag
20.97
Filter
r-Sloan
Reporter/s
A. Martin-Carrillo (UCD), D. B. Malesani (Radboud and DAWN/NBI), L. Izzo (INAF-OACN and DARK/NBI), Z. P. Zhu (NAOC), D. Xu (NAOC), A. Saccardi (CEA/Irfu), B. Schneider (LAM), A. J. Levan (Radboud and Warwick), P. G.Jonker (Radboud Univ.), L. Cotter (UCD), J. van Dalen (Radboud Univ.), G. Corcoran (UCD), K. Wiersema (Herts), F. E. Bauer (PUC), report on behalf of a larger collaboration

Spectra

 SN_2025fhm - 2025-03-22 02:45:04 VLT-UT4 / MUSE (STARGATE)z=
Show H at z=vexp= km/s
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Show [Ca II] at z=vexp= km/s
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Show Tellurics 
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 PS1_GPC1_i
 VLT-UT2_X-Shooter_r
   
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
20609 2025-03-22 02:45:04 VLT-UT4 / MUSE P. Jonker (Radboud University) on behalf of a larger collaboration L. Izzo (INAF-OACN and DARK/NBI) STARGATE tns_2025fhm_2025-03-22_02-45-04_VLT-UT4_MUSE_STARGATE.txt Object 2026-03-31
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
i-P1 PS1_GPC1 2025-03-25 11:13:38 - 2025-03-25 11:13:38 2460759.9678 - 2460759.9678 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
578839 2025-03-25 11:13:38 2460759.9678 21.05 0.2 20.7 ABMag i-P1 PS1_GPC1 150 Robot
r-Sloan VLT-UT2_X-Shooter 2025-03-04 07:14:53 - 2025-03-04 07:14:53 2460738.8020023 - 2460738.8020023 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
477907 2025-03-04 07:14:53 2460738.8020023 20.97 0.03 ABMag r-Sloan VLT-UT2_X-Shooter 30
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
301940 2026-04-29 10:51:05 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 13:53:34.683 -42:48:16.54 2025-03-25 11:13:37.920 21.05 i-P1 PSN PS25ape Pan-STARRS N
249388 2025-03-23 08:57:40 Antonio Martin-Carrillo A. Martin-Carrillo (UCD), D. B. Malesani (Radboud and DAWN/NBI), L. Izzo (INAF-OACN and DARK/NBI) et al. STARGATE 13:53:34.680 -42:48:16.71 2025-03-04 02:18:49.000 20.97 r-Sloan Other STARGATE Optical counterpart to EP250304a 2025TNSTR1097....1M N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
20609 2025-03-23 09:15:41 Antonio Martin-Carrillo A. Martin-Carrillo (UCD), L. Izzo (INAF-OACN and DARK/NBI), D. B. Malesani (Radboud and DAWN/NBI), A. J. Levan (Radboud and Warwick), P. G.Jonker (Radboud Univ.), L. Cotter (UCD), J. van Dalen (Radboud Univ.), G. Corcoran (UCD), K. Wiersema (Herts), F. E. Bauer (PUC), report on behalf of a larger collaboration STARGATE SN Ic-BL 0.2 1 STARGATE Spectrum taken 15 days (rest frame) after the prompt emission detected by Einstein Probe, consistent with the archetypical GRB-SN Ic-BL, SN1998bw at 14 days after its explosion 2025TNSCR1109....1M
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
20609 2025-03-22 02:45:04 VLT-UT4 / MUSE P. Jonker (Radboud University) on behalf of a larger collaboration L. Izzo (INAF-OACN and DARK/NBI) STARGATE tns_2025fhm_2025-03-22_02-45-04_VLT-UT4_MUSE_STARGATE.txt Object 2026-03-31

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 301940 of Group Pan-STARRS
Previous RA, DEC: 13:53:34.680, -42:48:16.71 (208.3945, -42.804642)
Updated RA, DEC: 13:53:34.683, -42:48:16.54 (208.394513255, -42.804595121)