RA/DEC (2000)
03:22:12.725 -44:05:39.48
50.55302 -44.0943
Type
SN Ia
Redshift
0.02997
Discovery ReportClassification Report
Reporting Group
ASAS-SN
Discovering Data Source
ASAS-SN
Discovery Date
2016-04-02 23:31:12.000
TNS AT
Y
Public
Y
Host Name
APMUKS(BJ) B032028.93-441621.0
Host Redshift
0.02997
Discovery Mag
16.3
Filter
V-Johnson
Reporter/s
J. Brimacombe, K. Z. Stanek, for the ASAS-SN team
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2016blk - 2016-04-09 23:20:43 Magellan-Baade / IMACS (None)z=
▌Show H at z=vexp= km/s
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▌Show Ca II at z=vexp= km/s
▌Show [Ca II] at z=vexp= km/s
▌Show Fe II at z=vexp= km/s
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▌Show Tellurics 
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌ASASSN-2_Cassius_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
196 2016-04-09 23:20:43 Magellan-Baade / IMACS J. L. Prieto None tns_2016blk_2457488.47273_Magellan-Baade_IMACS.txt tns_2016blk_2457488.47273_Magellan-Baade_IMACS.fits Object We obtained an optical spectrum (range 420-940nm; resolution ~5 Angstroms) of ASASSN-16dx/AT2016blk (ATel #8898, TNS) on UT 2016 Apr. 10.0 with IMACS mounted on the Magellan 6.5-m Baade telescope.
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
V-Johnson ASASSN-2_Cassius 2016-03-23 00:28:48 - 2016-04-02 23:31:12 2457470.52 - 2457481.48 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
1985 2016-04-02 23:31:12 2457481.48 16.3 0.1 17.2 VegaMag V-Johnson ASASSN-2_Cassius
1986 2016-03-28 00:14:24 2457475.51 16.9 0.15 17.4 VegaMag V-Johnson ASASSN-2_Cassius
1984 2016-03-23 00:28:48 2457470.52 16.7 VegaMag V-Johnson ASASSN-2_Cassius [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
1770 2016-04-03 14:55:46 Krzysztof Stanek J. Brimacombe, K. Z. Stanek, for the ASAS-SN team ASAS-SN ASAS-SN 03:22:12.725 -44:05:39.48 2016-04-02 23:31:12.000 16.3 V-Johnson PSN APMUKS(BJ) B032028.93-441621.0 ASASSN-16dx ASAS-SN Redshift for the host galaxy not listed on NED, but listed on Vizier. 2016TNSTR.256....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
189 2016-04-11 20:45:40 Jose Prieto J. L. Prieto, B. J. Shappee None SN Ia 0.02997 1 The spectrum shows characteristics of a (likely peculiar) Type Ia supernova. Cross-correlation with a library of supernova spectra using the "Supernova Identification" code (SNID; Blondin & Tonry 2007, ApJ, 666, 1024) and chi2-by-eye shows that the best matches are the spectra of SN2007if ("super-chandra") and SN2002ic (Ia-CSM) a few days after max, but there are also reasonably good matches with some SN1991T-like SNe. After correcting the spectrum for the redshift of the host galaxy (z=0.02997 from 6dF), we measure a Si II 635.5nm expansion velocity of ~12000 km/s. 2016TNSCR.282....1P
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
196 2016-04-09 23:20:43 Magellan-Baade / IMACS J. L. Prieto None tns_2016blk_2457488.47273_Magellan-Baade_IMACS.txt tns_2016blk_2457488.47273_Magellan-Baade_IMACS.fits Object We obtained an optical spectrum (range 420-940nm; resolution ~5 Angstroms) of ASASSN-16dx/AT2016blk (ATel #8898, TNS) on UT 2016 Apr. 10.0 with IMACS mounted on the Magellan 6.5-m Baade telescope.

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