RA/DEC (2000)
18:52:51.701 +30:05:22.69
283.2154197 +30.0896364
Type
SN Ia
Redshift
0.056
Discovery ReportClassification Report
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2025-04-24 10:54:43.997
TNS AT
Y
Public
Y
Discovery Mag
20.0933
Filter
g-ZTF
Reporter/s
Daniel Perley (LJMU), Christoffer Fremling (Caltech), Theophile du Laz (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025izo - 2025-05-05 02:36:22 NOT / ALFOSC (None)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

 ▌GOTO-N_GOTO-2_L
 ▌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
20978 2025-05-05 02:36:22 NOT / ALFOSC 1500 Niko Pyykkinen Panos Charalampopoulos None tns_2025izo_2025-05-05_02-36-21.669_NOT_ALFOSC_None.ascii tns_2025izo_2025-05-05_02-36-21.669_NOT_ALFOSC_None.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2025-04-26 02:22:15 - 2025-05-04 02:07:38 2460791.598795 - 2460799.588644 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
486547 2025-05-04 02:07:38 2460799.588644 18.45 0.11 ABMag L-GOTO GOTO-N_GOTO-2 180
486546 2025-04-26 02:22:15 2460791.598795 19 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-04-24 09:35:26 - 2025-05-02 09:56:38 2460789.8996065 - 2460797.9143287 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
485499 2025-05-02 09:56:38 2460797.9143287 18.5934 0.0849256 ABMag r-ZTF P48_ZTF-Cam
485497 2025-04-24 09:35:26 2460789.8996065 20.728 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2025-04-24 10:54:44 - 2025-04-24 10:54:44 2460789.9546759 - 2460789.9546759 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
485498 2025-04-24 10:54:44 2460789.9546759 20.0933 0.14316 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
253910 2025-05-04 11:04:20 GOTO_bot A. Kumar,G. Ramsay,K. Ackley et al. GOTO GOTO 18:52:51.743 +30:05:22.21 2025-05-04 02:07:38.496 18.45 L-GOTO Other GOTO25cgz GOTO N
253375 2025-05-02 11:14:33 Fritz Daniel Perley (LJMU),Christoffer Fremling (Caltech),Theophile du Laz (Caltech) on behalf of ZTF et al. ZTF ZTF 18:52:51.701 +30:05:22.69 2025-04-24 10:54:43.997 20.0933 g-ZTF PSN ZTF25aaohuyd ZTF 2025TNSTR1631....1P N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
20978 2025-05-05 08:29:15 Panos Charalampopoulos Panos Charalampopoulos (UTU) None SN Ia 0.056 1 1 We report the classification of AT2025izo as a Ia supernova based on an optical spectrum obtained with the Nordic Optical Telescope on 2025-05-04 (i.e., MJD 60800.11). The transient is coincident with the nucleus of the host galaxy. Comparison with a library of supernovae spectra using SNID (Blondin & Tonry 2007, ApJ, 666, 1024), suggests AT2025izo is an around peak SN Ia at a redshift of z~0.056. We note that there is significant MW extinction (Av=0.535) making the ~ current absolute magnitude at that redshift be Mg = -19.2 (with an intrinsic g-r colour of ~ -0.25). 2025TNSCR1680....1C
Related files
File Comments Last Modified (UT) Modified By
tns_2025izo_atrep_20978.png Classifications were done using SNID (Blondin & Tonry 2007 2007ApJ...666.1024B). 2025-05-05 08:29:16 Panos Charalampopoulos
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
20978 2025-05-05 02:36:22 NOT / ALFOSC 1500 Niko Pyykkinen Panos Charalampopoulos None tns_2025izo_2025-05-05_02-36-21.669_NOT_ALFOSC_None.ascii tns_2025izo_2025-05-05_02-36-21.669_NOT_ALFOSC_None.fits Object

Comments