RA/DEC (2000)
05:31:39.950 -10:23:34.83
82.91646 -10.3930076923
Type
SN II
Redshift
0.009073
Discovery ReportClassification Report
Related AstroNotes: 2023-74
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2023-04-03 19:19:03.360
TNS AT
Y
Public
Y
Discovery Mag
17.2
Filter
orange-ATLAS
Reporter/s
J. Tonry, L. Denneau, H. Weiland, A. Lawrence, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), J. Anderson (ESO), A. Jordan, V. Suc (UAI, Obstech), S. J. Smartt (Oxford/QUB), K. W. Smith, S. Srivastav, D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston (Queen's University Belfast), L. Shingles (GSI/QUB), A. Rest (STScI), T.-W. Chen (TUM/MPA), C. Stubbs (Harvard), J. Sommer (LMU/QUB), L. Rhodes, A. Andersson (Oxford)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2023enr - 2023-04-10 00:00:00 FTN / FLOYDS-N (Global SN Project)z=
 ▌SN_2023enr - 2023-04-05 08:51:17 FTS / FLOYDS-S (Global SN Project)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

 ▌ATLAS-CHL_ATLAS-04_orange_
 ▌ATLAS-STH_ATLAS-03_orange_
   
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
14733 2023-04-10 00:00:00 FTN / FLOYDS-N 2700 Las Cumbres Observatory Megan Newsome Global SN Project tns_2023enr_2023-04-10_FTN_FLOYDS-N_Global_SN_Project.ascii Object
14708 2023-04-05 08:51:17 FTS / FLOYDS-S 1800 Las Cumbres Observatory Estefania Padilla Gonzalez Global SN Project tns_2023enr_2023-04-05_08-51-17_FTS_FLOYDS-S_Global_SN_Project.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
orange-ATLAS ATLAS-CHL_ATLAS-04 2023-04-02 00:19:46 - 2023-04-02 00:19:46 2460036.51373 - 2460036.51373 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
334728 2023-04-02 00:19:46 2460036.51373 18.56 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2023-04-03 19:19:03 - 2023-04-03 19:19:03 2460038.3049 - 2460038.3049 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
334729 2023-04-03 19:19:03 2460038.3049 17.2 0.067 18.6 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
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 Bibcode Unreal Auto classification
173681 2023-04-04 11:37:48 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 05:31:39.950 -10:23:34.83 2023-04-03 19:19:03.360 17.2 orange-ATLAS PSN ATLAS23gsr ATLAS 2023TNSTR.714....1T N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
14659 2023-04-13 21:58:25 Megan Newsome Megan Newsome (LCO/UCSB), Giorgos Leloudas, D. Andrew Howell, Curtis McCully, Samantha Goldwasser, Estefania Padilla Gonzalez, Craig Pellegrino, Giacomo Terreran Global SN Project SN II 0.009073 1 2 Global SN Project Using Superfit (Howell et al. 2005, ApJ, 634, 1190; Goldwasser et al. 2022, TNS, 191, 1) and SNID (Blondin & Tonry 2007, ApJ, 666, 1024), we find best fits to SNe II at early phases. There are good fits to SN 2013df and SN 1999em both at early phases. The supernova is closest to WISEA J053139.94-102333.9 at redshift z = 0.009. This redshift is well-matched by narrow host hydrogen lines. Our latest spectrum from FLOYDS-N shows broad He I emission and an absorption feature near He II 4876. 2023TNSCR.786....1N
Related files
File Comments Last Modified (UT) Modified By
tns_2023enr_classrep_14659_Global_SN_Project.png SNID fit to SN1999em, a type II. 2023-04-13 21:58:25 Megan Newsome
tns_2023enr_classrep_14659_Global_SN_Project.pdf Superfit match to SN 2013df, a type II. 2023-04-13 21:58:25 Megan Newsome
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
14733 2023-04-10 00:00:00 FTN / FLOYDS-N 2700 Las Cumbres Observatory Megan Newsome Global SN Project tns_2023enr_2023-04-10_FTN_FLOYDS-N_Global_SN_Project.ascii Object
14634 2023-04-07 20:09:57 Megan Newsome Megan Newsome (LCO/UCSB), Estefania Padilla Gonzalez, D. Andrew Howell, Curtis McCully, Craig Pellegrino, Giacomo Terreran Global SN Project TDE 0.009073 1 1 Global SN Project Similar to the TDE AT 2022dsb, in the host galaxy WISEA J053139.94-102333.9 at redshift z = 0.009 whose W1-W2 colors do not show likely AGN activity. Very weak OIII also indicates unlikely AGN. Possible broad Ha, He I, and He II underneath narrow host lines. We note that the location of the host nucleus is uncertain, but within 2" of this transient's location. 2023TNSCR.729....1N
Related files
File Comments Last Modified (UT) Modified By
tns_2023enr_classrep_14634_Global_SN_Project.png Comparison of 23enr (black) to another TDE, AT2022dsb (pink). 2023-04-07 20:09:57 Megan Newsome
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
14708 2023-04-05 08:51:17 FTS / FLOYDS-S 1800 Las Cumbres Observatory Estefania Padilla Gonzalez Global SN Project tns_2023enr_2023-04-05_08-51-17_FTS_FLOYDS-S_Global_SN_Project.ascii Object

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