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 ATLAS survey (Smith et al. 2020 2020PASP..132h5002S), 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...3...26S), the All Sky Automated Survey for SuperNovae ASAS-SN (see Shappee et al. 2014 2014ApJ...788...48S), and by the Gravitational-wave Optical Transient Observer GOTO (see Dyer et al. 2020, SPIE, 11445 2020SPIE11445E..7GD).
Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2025 May 20, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution) and Grism 11 (3380-7520A, 16A resolution). Classifications were done using NGSF (Next Generation SuperFit; AstroNote 2022-191, Howell et al. 2005 2005ApJ...634.1190H), DASH (Muthukrishna et al. 2019 2019ApJ...885...85M), 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.
| Catalog | Name | Reported RA | Reported DEC | Reported Obj-Type | Reported Redshift | Host Name | Host Redshift | Remarks | TNS RA | TNS DEC | TNS Obj-Type | TNS Redshift |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TNS | 2025ikn [ATLAS25eha] | 21:05:19.181 | -17:39:09.21 | SN Ia | 0.03 | WISEA J210519.01-173908.9 | This object is already classified by Martin et al. ( 2025TNSCR1678....1M ). We also find it to be SN Type Ia. The redshift is from template match. | 21:05:19.184 | -17:39:09.20 | SN Ia | 0.03 | |
| TNS | 2025klo [ZTF25aaqgorp] | 15:45:26.308 | +06:58:31.74 | SN Ia | 0.082 | SDSS J154526.26+065832.3 | 0.0822003 | Redshift from host at NED. Good match with Type Ia from NGSF, ASTRODASH, and GELATO. | 15:45:26.301 | +06:58:31.66 | SN Ia | 0.082 |
| TNS | 2025knh [ATLAS25ezh] | 21:04:47.995 | -39:26:08.13 | SN Ia | 0.04 | LCRS B210135.7-393807 | Redshift from template match. Good match with Type Ia NGSF, ASTRODASH, and GELATO. | 21:04:47.995 | -39:26:08.13 | SN Ia | 0.04 | |
| TNS | 2025kki [ZTF25aaqfffi] | 15:43:29.780 | -09:07:08.67 | SN Ia | 0.06 | WISEA J154329.89-090703.9 | Redshift from template match. Good match with Type Ia from NGSF, ASTRODASH, and GELATO. | 15:43:29.780 | -09:07:08.67 | SN Ia | 0.06 | |
| TNS | 2025kfd [ATLAS25ews] | 20:03:58.948 | -28:14:54.57 | SN Ia | 0.05 | Redshift from template match. Good match with Type Ia from NGSF, ASTRODASH, and GELATO. | 20:03:58.989 | -28:14:54.40 | SN Ia | 0.06 | ||
| TNS | 2025iwh [ZTF25aaoxxlf] | 16:07:10.526 | -26:25:30.02 | SN Ia-91bg-like | 0.07 | Redshift from template match. Good match with Type Ia-91bg-like SNe from NGSF, ASTRODASH, and GELATO. | 16:07:10.526 | -26:25:30.02 | SN Ia-91bg-like | 0.07 | ||
| TNS | 2025jtq [ASASSN-25bs] | 00:57:31.752 | -17:21:47.38 | SN II | 0.03 | WISEA J005731.88-172146.9 | 0.02619 | Redshift from host at NED (photometric). Good match with Type II from NGSF and GELATO. | 00:57:31.752 | -17:21:47.38 | SN II | 0.03 |
| TNS | 2025jyf [GOTO25ciw] | 23:57:52.028 | -79:56:40.21 | SN Ia | 0.06 | WISEA J235753.07-795650.9 | Redshift from template match. Good match with Type Ia from NGSF, ASTRODASH, and GELATO. | 23:57:52.028 | -79:56:40.21 | SN Ia | 0.06 |
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