RA/DEC (2000)
16:35:54.060 +40:01:58.01
248.97525 +40.032781
Type
SN II
Redshift
Discovery ReportClassification Report
Reporting Group
ASAS-SN
Discovering Data Source
ASAS-SN
Discovery Date
2018-01-13 15:21:36.000
TNS AT
Y
Public
Y
Host Name
WISE J163554.27+400151.8
Host Redshift
0.031
Comments
[Object redshift updated according to host-redshift by admin]
Discovery Mag
16.6
Filter
V-Johnson
Reporter/s
J. Brimacombe, G. Stone, K. Z. Stanek, for the ASAS-SN team
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2018gk - 2018-01-14 12:53:02 FLWO-1.5m / FAST (ASAS-SN)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),

Light curves

 ▌Gaia_Gaia-photometric_G
 ▌ASASSN-1_Brutus_V
   
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
1654 2018-01-14 12:53:02 FLWO-1.5m / FAST M. Calkins ASAS-SN tns_2018gk_2458133.0368287_FLWO_1.5m_FAST_ASAS-SN.txt tns_2018gk_2458133.0368287_FLWO_1.5m_FAST_ASAS-SN.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
G-Gaia Gaia_Gaia-photometric 2017-12-10 22:00:28 - 2018-01-17 03:37:26 2458098.4169907 - 2458135.6509954 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
24824 2018-01-17 03:37:26 2458135.6509954 16.24 0.2 ABMag G-Gaia Gaia_Gaia-photometric 60 Robot
24823 2017-12-10 22:00:28 2458098.4169907 21.5 ABMag G-Gaia Gaia_Gaia-photometric Robot [Last non detection]
V-Johnson ASASSN-1_Brutus 2018-01-10 15:36:00 - 2018-01-13 15:21:36 2458129.15 - 2458132.14 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
24723 2018-01-13 15:21:36 2458132.14 16.6 VegaMag V-Johnson ASASSN-1_Brutus
24722 2018-01-10 15:36:00 2458129.15 17.8 VegaMag V-Johnson ASASSN-1_Brutus [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 ADS Bibcode Unreal Auto classification
16536 2018-01-18 10:52:44 Gaia_Bot1 A. Delgado, D. Harrison, S. Hodgkin et al. GaiaAlerts GaiaAlerts 16:35:54.060 +40:01:58.01 2018-01-17 03:37:26.000 16.24 G-Gaia PSN Gaia18aeg GaiaAlerts confirmed SN II near starburst galaxy SDSS J163554.35+400151.4, aka SN2018gk N
16485 2018-01-14 14:07:22 Krzysztof Stanek J. Brimacombe, G. Stone, K. Z. Stanek et al. ASAS-SN ASAS-SN 16:35:53.909 +40:01:57.79 2018-01-13 15:21:36.000 16.6 V-Johnson PSN WISE J163554.27+400151.8 ASASSN-18am ASAS-SN Confirmed by J. Brimacombe and G. Stone 2018TNSTR..54....1B N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
1649 2018-01-17 00:37:22 Jose Prieto E. Falco, M. Calkins (Harvard CfA), J. L. Prieto (UDP/MAS), K. Z. Stanek (OSU) ASAS-SN SN II 1 ASAS-SN We report optical spectroscopic observations of the ASAS-SN transients ASASSN-18am/AT2018gk, ASASN-18ao/AT2018gm, and ASASSN-18ap/AT2018gn (ATel #11178), obtained on UT 2018 Jan 14-16 with FAST (range 3600-7450 Angstroms) mounted on the F. L. Whipple Observatory 1.5-m telescope. We used SNID (Blondin & Tonry, 2007, ApJ, 666, 1024) to aid with the type, phase and redshift determination. ASASSN-18am has a blue continuum, relatively weak and broad H-alpha (FWHM ~ 5000 km/s), and strong He II in emission (narrow and broad features), consistent with a young Type II SN. 2018TNSCR..81....1F
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
1654 2018-01-14 12:53:02 FLWO-1.5m / FAST M. Calkins ASAS-SN tns_2018gk_2458133.0368287_FLWO_1.5m_FAST_ASAS-SN.txt tns_2018gk_2458133.0368287_FLWO_1.5m_FAST_ASAS-SN.fits Object

Comments

TNS
System

Sun, 06/23/2019 - 10:43

Object coordinates updated

Object coordinates updated according to AT-report 16536 of Group GaiaAlerts
Previous RA, DEC: 16:35:53.909, +40:01:57.79 (248.97462, +40.03272)
Updated RA, DEC: 16:35:54.060, +40:01:58.01 (248.97525, 40.032781)