ePESSTO+, the advanced Public ESO Spectroscopic Survey for Transient Objects (Smartt et al. 2015 2015A&A...579A..40S), reports the following supernova classifications.
Targets were supplied by the the ATLAS survey (Smith et al. 2020 2020arXiv200309052S), the Zwicky Transient Facility ZTF (Bellm et al. 2019 2019PASP..131a8002B) - data stream processed through the Lasair broker (Smith, Williams, Young et al. 2019 2019RNAAS...3a..26S) and by the ALeRCE broker (Forster et al. 2020 https://arxiv.org/abs/2008.03303), and by the ESA Gaia Photometric Science Alerts Team DPAC.
Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2021 April 04, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were done using SNID (Blondin & Tonry 2007 2007ApJ...666.1024B) and GELATO (Harutyunyan et al. 2008 2008A&A...488..383H).
The classification spectra and additional details can be obtained from http://www.pessto.org (via WISeREP) and the IAU Transient Name Server.
The classified objects are listed in the Related Objects table below.
SN2021dqw was reported in AstroNote 2021-102 as a potential SLSN.
| Catalog | Name | Reported RA | Reported DEC | Reported Obj-Type | Reported Redshift | Host Name | Host Redshift | Source | Phase (days) | Remarks | TNS RA | TNS DEC | TNS Obj-Type | TNS Redshift |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TNS | 2021dqw [ZTF21aamwvhr] | 16:06:38.926 | +16:14:07.21 | SN II | 0.04 | ZTF | post-max | Redshift from SNID fit | 16:06:38.934 | +16:14:07.21 | SN II | 0.04 | ||
| TNS | 2021htw [ATLAS21job] | 05:53:29.529 | -35:02:07.02 | SN Ia | 0.08 | ATLAS | around max | Redshift and phase from SNID fit | 05:53:29.529 | -35:02:07.02 | SN Ia | 0.08 | ||
| TNS | 2021hfq [Gaia21bnr] | 07:57:54.900 | -67:43:53.15 | SN Ia | 0.08 | Gaia | +10 | Redshift and phase from SNID fit | 07:57:54.900 | -67:43:53.15 | SN Ia | 0.08 | ||
| TNS | 2021hvo [ATLAS21jom] | 13:22:51.335 | -40:46:36.15 | SN Ia | 0.051 | ATLAS | around max | Redshift from narrow host galaxy emission lines | 13:22:51.335 | -40:46:36.15 | SN Ia | 0.051 | ||
| TNS | 2021fox [ATLAS21hzm] | 09:57:36.350 | -13:41:45.38 | SN II | 0.0317 | 2MASXJ09573643-1341492 | 0.0317 | ATLAS | Redshift from known host | 09:57:36.360 | -13:41:45.42 | SN II | 0.032 | |
| TNS | 2021hpv [ATLAS21jlk] | 10:02:57.350 | -11:44:01.40 | SN Ic | 0.029 | MGC-02-26-023 | 0.029 | ATLAS | +13 | Phase from SNID fit, redshift from known host | 10:02:57.333 | -11:44:01.44 | SN Ic | 0.029 |
| TNS | 2021hkf [ZTF21aaqyuun] | 11:44:23.277 | +08:10:41.44 | SN II | 0.02 | SDSS J114422+081031.2 | 0.02 | ZTF | Redshift from known host | 11:44:23.270 | +08:10:41.45 | SN II | 0.02 | |
| TNS | 2021fzq [ZTF21aapjmpq] | 15:01:07.290 | +12:18:50.36 | SN Ia-91T-like | 0.13 | SDSS J150107.30+121850.0 | ZTF | -1 | Redshift and phase from SNID fit | 15:01:07.295 | +12:18:50.35 | SN Ia-91T-like | 0.13 | |
| TNS | 2021hse [ZTF21aarjehy] | 16:05:56.888 | +14:40:42.58 | SN II | 0.04 | SDSS J160557.30+144044.3 | ZTF | Redshift from narrow H-alpha in the transient spectrum | 16:05:56.872 | +14:40:42.50 | SN II | 0.04 | ||
| TNS | 2021hgd [Gaia21boh] | 13:33:48.430 | -53:20:04.92 | CV | Gaia | 13:33:48.430 | -53:20:04.92 | CV | ||||||
| TNS | 2021hwk [ZTF21aasbxng] | 14:19:02.720 | -07:23:26.14 | SN Ia | 0.041 | LEDA 1019808 | ZTF | -10 | Redshift from host H-alpha emission; phase from SNID fit | 14:19:02.717 | -07:23:26.11 | SN Ia | 0.041 | |
| TNS | 2021hji [ZTF21aaqztcg] | 16:48:41.125 | +21:59:50.01 | SN Ia | 0.057 | WISEA J164841.04+215950.8 | 0.057739 | ZTF | -10 | Redshift from known host; phase from SNID fit | 16:48:41.131 | +21:59:49.81 | SN Ia | 0.057 |
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