RA/DEC (2000)
16:43:48.201 +41:02:43.38
250.950837548 +41.0453830323
Type
SN Ic-BL
Redshift
0.032
Discovery ReportClassification Report
Related AstroNotes: 2020-37
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2018-09-09 03:55:17.000
TNS AT
Y
Public
Y
Host Name
SDSS J164348.22+410243.3
Host Redshift
0.033
Discovery Mag
20.48
Filter
r-ZTF
Reporter/s
Anna Ho (Caltech), Steve Schulze (WIS), Daniel Perley (LJMU), Scott Adams (Caltech) Jackob den Brok (ETH), Nikita Kamraj (Caltech), Mansi Kasliwal (Caltech), Michael Koss (UW Seattle), Daniel Stern (JPL), on behalf of the Zwicky Transient Facility (ZTF) collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2018gep - 2018-09-19 05:42:17 FTN / FLOYDS-N (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

 ▌P48_ZTF-Cam_r
 ▌ATLAS-HKO_ATLAS-02_cyan
   
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
2811 2018-09-19 05:42:17 FTN / FLOYDS-N 1800 Las Cumbres Observatory Jamison Burke Global SN Project tns_2018gep_2018-09-19_05-42-17_FTN_FLOYDS-N_Global_SN_Project.ascii tns_2018gep_2018-09-19_05-42-17_FTN_FLOYDS-N_Global_SN_Project.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
r-ZTF P48_ZTF-Cam 2018-09-09 03:22:45 - 2018-09-09 03:55:17 2458370.6408 - 2458370.6634 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
35608 2018-09-09 03:55:17 2458370.6634 20.48 0.26 20.53 Other r-ZTF P48_ZTF-Cam r-ZTF mag
35607 2018-09-09 03:22:45 2458370.6408 20.47 Other r-ZTF P48_ZTF-Cam [Last non detection] r-ZTF mag
cyan-ATLAS ATLAS-HKO_ATLAS-02 2018-10-05 06:21:36 - 2018-10-09 05:22:33 2458396.765 - 2458400.7239931 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
94406 2018-10-09 05:22:33 2458400.7239931 18.993 0.125 19.59 ABMag cyan-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
94405 2018-10-05 06:21:36 2458396.765 19.47 ABMag cyan-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
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
49202 2019-10-10 14:33:07 ATLAS_Bot1 J. Tonry,L. Denneau,A. Heinze et al. ATLAS ATLAS 16:43:48.201 +41:02:43.38 2018-10-09 05:22:33.000 18.993 cyan-ATLAS PSN ATLAS18vah ATLAS N
22559 2018-09-11 13:58:51 Anna Ho Anna Ho (Caltech),Steve Schulze (WIS),Daniel Perley (LJMU) et al. ZTF ZTF 16:43:48.222 +41:02:43.37 2018-09-09 03:55:17.000 20.48 r-ZTF PSN SDSS J164348.22+410243.3 ZTF18abukavn 2018TNSTR1357....1H N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
2804 2018-09-24 17:01:37 Jamison Burke Jamison Burke, Iair Arcavi, Daichi Hiramatsu, D. Andrew Howell, Curtis McCully, Stefano Valenti Global SN Project SN Ic-BL 0.032 1 1 Global SN Project Using SNID (Blondin & Tonry 2007, ApJ, 666, 1024), we find multiple fits to Ic-BL around maximum light. We measure the ejecta velocity to be roughly 24,000 km/s, consistent across features of CaII, MgII, FeII, SiII, and OI. This value is high even for a Ic-BL, but within the parameter space of previous samples (Modjaz et al. 2016, ApJ, 832, 108). We measure the redshift to be 0.032 based on narrow host galaxy hydrogen lines. 2018TNSCR1442....1B
Related files
File Comments Last Modified (UT) Modified By
tns_2018gep_classrep_2804_Global_SN_Project.ps 2018-09-24 17:01:37 Jamison Burke
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
2811 2018-09-19 05:42:17 FTN / FLOYDS-N 1800 Las Cumbres Observatory Jamison Burke Global SN Project tns_2018gep_2018-09-19_05-42-17_FTN_FLOYDS-N_Global_SN_Project.ascii tns_2018gep_2018-09-19_05-42-17_FTN_FLOYDS-N_Global_SN_Project.fits Object

Comments

TNS
System

Thu, 10/10/2019 - 12:30

Object coordinates updated

Object coordinates updated according to AT-report 49202 of Group ATLAS
Previous RA, DEC: 16:43:48.222, +41:02:43.37 (250.950926, +41.04538)
Updated RA, DEC: 16:43:48.201, +41:02:43.38 (250.950837548, 41.0453830323)