AstroNote 2019-47

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2019-07-18 12:38:39
Type: Object/s-Discovery/Classification
SCAT classification of optical transients
Authors: A Do, M A Tucker, A V Payne, M E Huber, B J Shappee, and the ASAS-SN team
Source Group: SCAT
We present the classification of 7 optical transients: 4 Type Ia SNe (z=0.043, 0.05, 0.08, 0.08) and 3 Type IIP SNe (z=0.03, 0.034, 0.04).

The Spectral Classification of Astronomical Transients (SCAT) survey (ATel #11444) presents the classification of 7 optical transients. We report optical spectroscopy (330-970nm, R~1200) taken with the University of Hawaii 88-inch (UH88) telescope using the SuperNova Integral Field Spectrograph (SNIFS). Transients were classified using the SuperNova IDentification code (SNID, Blondin & Tonry 2007, ApJ, 666, 1024). Additionally, we use photometry from the All-Sky Automated Survey for SuperNovae (ASAS-SN, Shappee et al. 2014, ApJ, 788, 48) to more accurately constrain the phase of each object. Redshifts given to 2 decimal places are derived supernova lines (via SNID), otherwise the redshifts are taken from NED or measured from narrow host galaxy emission lines. 

Show current TNS values
CatalogNameReported RAReported DECReported Obj-TypeReported RedshiftHost NameHost RedshiftRemarksTNS RATNS DECTNS Obj-TypeTNS Redshift
TNS2019ktf [ATLAS19oqd]23:32:29.939-29:33:36.66SN Ia0.0523:32:29.893-29:33:37.13SN Ia0.05
TNS2019kpv [ATLAS19one]23:47:05.597-34:42:34.78SN Ia0.042523:47:05.600-34:42:35.06SN Ia0.0425
TNS2019kcv [ATLAS19ohp]14:25:44.579-03:13:58.97SN Ia0.08Templates from Ia-norm and Ia-91T SNe provide similar results.14:25:44.578-03:13:58.89SN Ia0.073011
TNS2019kaj [ATLAS19ogn]23:28:20.334+19:33:29.80SN IIP0.0423:28:20.350+19:33:29.70SN IIP0.04
TNS2019kah [ATLAS19oft]00:58:09.796-29:19:24.49SN IIP0.0341100:58:09.796-29:19:24.49SN IIP0.03411
TNS2019jwq [ZTF19abcneik]12:55:54.639+48:45:04.00SN IIP0.03512:55:54.630+48:45:04.03SN II0.035
TNS2019jzt [ATLAS19odx]00:54:32.221+34:22:41.68SN Ia-91T-like0.08SNID also provides several matches to pre-maximum SN Ia-norm templates, however, ATLAS first reported this object over two weeks ago. Considering the discovery date, we consider the post-max Ia-91T results more reasonable.00:54:32.212+34:22:41.83SN Ia-91T-like0.08