RA/DEC (2000)
01:55:41.941 +31:25:04.55
28.9247527006 +31.4179294413
Type
SN IIb
Redshift
0.036
Discovery ReportClassification Report
Related AstroNotes: 2019-154, 2019-156, 2019-157
Reporting Group
Pan-STARRS
Discovering Data Source
Pan-STARRS
Discovery Date
2019-12-16 07:19:12.000
TNS AT
Y
Public
Y
Discovery Mag
19.38
Filter
i-Sloan
Reporter/s
K. C. Chambers, T. de Boer, J. Bulger, J. Fairlamb, M. Huber, C.-C. Lin, T. Lowe, E. Magnier, A. Schultz, R. J. Wainscoat, M. Willman (IfA, University of Hawaii), K. W. Smith, D. R. Young, O. McBrien, J. Gillanders. S. Srivastav, S. J. Smartt, D. O'Neil, P. Clark, S. Sim (Queen's University Belfast), D. E. Wright (University of Minnesota)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2019wxt - 2019-12-19 05:10:39 LBT / MODS2 (None)z=
 ▌SN_2019wxt - 2019-12-19 01:24:45 VLT-UT1 / FORS2 (adH0cc)z=
 ▌SN_2019wxt - 2019-12-19 00:50:08 ESO-NTT / EFOSC2-NTT (ePESSTO+)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

 ▌PS2_GPC2_w
 ▌PS1_GPC1_i
   
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
5716 2019-12-19 05:10:39 LBT / MODS2 3600 Vallely, Wood Garnavich None tns_2019wxt_2019-12-19_05-10-39_LBT_MODS2.ascii Object LBT spectrum from a ToO led by Mark Wagner
5708 2019-12-19 01:24:45 VLT-UT1 / FORS2 1500 service S. Taubenberger adH0cc tns_2019wxt_2019-12-19_01-24-45_VLT-UT1_FORS2_adH0cc.asci tns_2019wxt_2019-12-19_01-24-45_VLT-UT1_FORS2_adH0cc.fits Object Quick reduction with telluric corrections.
5707 2019-12-19 00:50:08 ESO-NTT / EFOSC2-NTT 1200 Tomas Muller Phil Wiseman, Miika Pursiainen ePESSTO+ tns_2019wxt_2019-12-19_00-50-08_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2019wxt_2019-12-19_00-50-08_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
w-P1 PS2_GPC2 2019-12-20 08:06:43 - 2019-12-20 08:06:43 2458837.8379977 - 2458837.8379977 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
108352 2019-12-20 08:06:43 2458837.8379977 19.49 0.06 22 ABMag w-P1 PS2_GPC2 45 Robot
i-P1 PS1_GPC1 2019-12-16 07:19:12 - 2019-12-16 07:19:12 2458833.805 - 2458833.805 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
106812 2019-12-16 07:19:12 2458833.805 19.38 0.05 20.7 ABMag i-P1 PS1_GPC1 45 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 ADS Bibcode Unreal Auto classification
55727 2019-12-26 00:54:11 PS2_Bot1 K. C. Chambers, T. de Boer, J. Bulger et al. Pan-STARRS Pan-STARRS 01:55:41.941 +31:25:04.55 2019-12-20 08:06:43.000 19.49 w-P1 PSN PS19hgw Pan-STARRS N
54849 2019-12-18 08:33:21 PS1_Bot1 K. C. Chambers, T. de Boer, J. Bulger et al. Pan-STARRS Pan-STARRS 01:55:41.941 +31:25:04.49 2019-12-16 07:19:12.000 19.38 i-P1 PSN PS19hgw Pan-STARRS 2019TNSTR2636....1C N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
5708 2019-12-20 19:32:37 Peter Garnavich Peter Garnavich None SN IIb 0.036 1 1 Weak broad features at 5875 and 7065 (possibly 6678) correspond to HeI, thus a Ib. The blue continuum suggests circumstellar interaction, so possibly a IIb. 2019TNSCR2901....1G
Related files
File Comments Last Modified (UT) Modified By
tns_2019wxt_classrep_5708.png 2019-12-20 19:32:37 Peter Garnavich
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
5716 2019-12-19 05:10:39 LBT / MODS2 3600 Vallely, Wood Garnavich None tns_2019wxt_2019-12-19_05-10-39_LBT_MODS2.ascii Object LBT spectrum from a ToO led by Mark Wagner
5700 2019-12-19 17:15:55 Stefan Taubenberger C. Vogl, A. Floers, S. Taubenberger, W. Hillebrandt, S. Suyu (MPA Garching), R. Kotak (Turku), S. J. Smartt, M. Dobson (QUB), B. Leibundgut, J. Spyromilio (ESO), R. Bruch, A. Gal-Yam (Weizmann) adH0cc SN Ib 0.036 1 adH0cc The adH0cc programme for an "accurate determination of H0 with core-collapse supernovae" reports the classification of the optical transient SN 2019wxt. The target was supplied by the Pan-STARRS Survey for Transients (Chambers et al. 2016 2016arXiv161205560C), through McLaughlin et al. AstroNote 2019-154 and McBrien et al., GCN 26485. We selected this target as a possible young SN II, at the right magnitude in our target redshift range for SNe II-P in the Hubble flow. The observations were performed on the night of 2019 December 18 with the ESO Very Large Telescope UT1, equipped with the FORS2 spectrograph and grism 300V, covering a wavelength range from 3400 to 9600A at a resolution of 10A. The spectrum is dominated by a blue continuum (see also Dutta et al., GCN 26490; Izzo et al., GCN 26491; Srivastav & Smartt, GCN 26493; Müller Bravo et al., GCN 26294 and AstroNote 2019-156), with a few broad undulations and with narrow H II-region lines superimposed. From the narrow emission lines, we derive a redshift of z = 0.036, in agreement with the spectroscopic redshift of the host galaxy. Some of the weak, broad features can be attributed to helium lines, with the 5876A and 7065A lines of He I providing the cleanest identifications. Broad hydrogen lines are not unambiguously detected. Based on these properties, we classify SN 2019wxt as a young SN Ib, but note similarities to some SNe IIb such as SN 2011fu (Morales-Garoffolo et al. 2015, MNRAS, 454, 95) at comparably early phases. 2019TNSCR2900....1V
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
5708 2019-12-19 01:24:45 VLT-UT1 / FORS2 1500 service S. Taubenberger adH0cc tns_2019wxt_2019-12-19_01-24-45_VLT-UT1_FORS2_adH0cc.asci tns_2019wxt_2019-12-19_01-24-45_VLT-UT1_FORS2_adH0cc.fits Object Quick reduction with telluric corrections.
5699 2019-12-19 14:16:30 ePESSTOplus_Bot1 Tomas Muller, Phil Wiseman, Miika Pursiainen, O. Yaron on behalf of ePESSTO+ ePESSTO+ Other 0.037 1 ePESSTO+ 2019TNSCR2648....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
5707 2019-12-19 00:50:08 ESO-NTT / EFOSC2-NTT 1200 Tomas Muller Phil Wiseman, Miika Pursiainen ePESSTO+ tns_2019wxt_2019-12-19_00-50-08_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2019wxt_2019-12-19_00-50-08_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments

TNS
System

Thu, 12/26/2019 - 00:30

Object coordinates updated

Object coordinates updated according to AT-report 55727 of Group Pan-STARRS1
Previous RA, DEC: 01:55:41.941, +31:25:04.49 (28.9247556143, +31.4179144483)
Updated RA, DEC: 01:55:41.941, +31:25:04.55 (28.9247527006, 31.4179294413)