AstroNote 2019-49

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2019-07-21 07:46:55
Type: Object/s-Discovery/Classification
Spectroscopic classification of two ASAS-SN supernovae with SALT
Authors: Ping Chen (KIAA-PKU), Subo Dong (KIAA-PKU), M. Gromadzki (Warsaw U. Observatory), D. A. H. Buckley (SAAO)
We report classification for two ASAS-SN supernovae (ASASSN-19qr/2019khf, ASASSN-19qw/2019knt) as SNe Ia.

We report optical spectroscopic observations of optical transients ASASSN-19qr/2019khf and ASASSN-19qw/2019knt with the Robert Stobie Spectrograph (RSS) on the Southern African Large Telescope (SALT). ASASSN-19qr/2019khf was observed on the night of 2019 July 15 and ASASSN-19qw/2019knt was observed on the night of 2019 July 16. The targets were discovered by the All-Sky Automated Survey for Supernovae (ASAS-SN; Shappee et al. 2014). We used SuperNova IDentification code (SNID; Blondin & Tonry, 2007, ApJ, 666, 1024) to identify the supernova types and phases from the spectra. 

The classified objects with classification info are listed in the Related Objects table below.

Show current TNS values
CatalogNameReported RAReported DECReported Obj-TypeReported RedshiftHost NameHost RedshiftPhase (days)RemarksTNS RATNS DECTNS Obj-TypeTNS Redshift
TNS2019khf [ASASSN-19qr]11:41:27.641-38:38:03.62SN Ia0.014TOLOLO 000910.013756-2Follow-up photometry confirms the spectrum was observed around peak.11:41:27.500-38:38:03.26SN Ia0.013756
TNS2019knt [ASASSN-19qw]10:35:50.310-34:16:22.40SN Ia0.014ESO 375- G 0700.012826-2Follow-up photometry confirms the spectrum was observed around peak.10:35:50.310-34:16:22.40SN Ia0.012826