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) and 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) and by the ALeRCE broker (Forster et al. 2020 2021AJ....161..242F).
Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2024 Jul 06, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were done using 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 | Source | Phase (days) | Remarks | TNS RA | TNS DEC | TNS Obj-Type | TNS Redshift |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TNS | 2024lxm [ATLAS24jjq] | 03:33:34.568 | -78:30:13.55 | SN Ia | 0.048 | 2MASX J03333254-7830362 | 0.048 | ATLAS | 21 | We adopted the redshift of the host from NED. GELATO finds a good match with 2001V at 21 days after maximum brightness by assuming an E(B-V) of 0.1. The phase is supported by the ATLAS light curve. | 03:33:34.630 | -78:30:13.54 | SN Ia | 0.048 |
| TNS | 2024mld [ZTF24aasvdze] | 17:18:39.322 | +21:40:44.83 | SN II | 0.043 | SDSS J171839.38+214043.8 | 0.043 | ZTF | 11 to 20 | The spectrum shows Flash Features of H, along with a broad He II line, indicating a Type II supernova. The redshift was estimated based on host galaxy emission lines. The phase is estimated based on ZTF light curve. | 17:18:39.333 | +21:40:44.71 | SN II | 0.043 |
| TNS | 2024mqg [ZTF24aaspwim] | 18:10:45.001 | +22:46:47.50 | CV | 0 | ZTF | Spectrum shows Halpha emission at z = 0. | 18:10:45.001 | +22:46:47.50 | CV | ||||
| TNS | 2024mzy [ATLAS24jwb] | 23:28:57.000 | +19:03:11.57 | SN Ia | 0.07 | SDSS J232857.07+190312.5 | ATLAS | at max | Redshift is estimated based on template matching. GELATO finds a good match with 1998bu 2 days before maximum. | 23:28:57.000 | +19:03:11.45 | SN Ia | 0.07 | |
| TNS | 2024naq [ZTF24aasuuxj] | 14:29:58.437 | -22:03:09.52 | SN Ia | 0.11 | SDSS J142958.30-220306.1 | ZTF | at max | Redshift is estimated based on template matching. GELATO finds a match with 2001V around maximum. | 14:29:58.437 | -22:03:09.52 | SN Ia | 0.11 | |
| TNS | 2024nbl [ZTF24aatbnzj] | 13:59:31.830 | -02:17:14.74 | SN Ia | 0.095 | 2MASS J13593186-0217141 | ZTF | -7 to -4 | Redshift is estimated from narrow emission lines of the host galaxy. GELATO finds a good match with 1998bu 4 to 7 days before maximum. | 13:59:31.830 | -02:17:14.74 | SN Ia | 0.095 | |
| TNS | 2024ncl [ZTF24aatwddy] | 14:14:41.058 | +05:08:48.49 | SN Ia | 0.111 | SDSS J141441.05+050848.3 | ZTF | at max | Redshift is estimated from narrow emission lines of the host galaxy. GELATO finds a good match with 2003du close to maximum. | 14:14:41.058 | +05:08:48.49 | SN Ia | 0.111 | |
| TNS | 2024nco [ZTF24aathuwg] | 14:18:06.244 | +08:17:15.59 | SN Ia-91T-like | 0.06 | SDSS J141805.42+081729.2 | 0.06 | ZTF | -7 | Redshift adopted from that of the host galaxy. GELATO finds a good match with 1991T a week before maximum. | 14:18:06.239 | +08:17:15.54 | SN Ia-91T-like | 0.06 |
| TNS | 2024nev [ZTF24aatlylg] | 22:13:50.669 | +03:59:02.07 | SN Ia-91bg-like | 0.0585 | SDSS J221350.35+035853.8 | ZTF | at max | Redshift adoped from previous classificatiom. GELATO finds good matches between our new spectrum and 1991bg close after maximum. | 22:13:50.674 | +03:59:02.51 | SN Ia-91bg-like | 0.0585 | |
| TNS | 2024ngx [ZTF24aatknxm] | 21:08:23.482 | -09:00:50.49 | SN Ia | 0.08 | WISEA J210823.53-090051.6 | ZTF | 10 | Redshift obtained from template matching. Very strong host contamination due to the vicinity of the host nucleus. GELATO finds a reasonable match with 1989B about ten days after maximum. | 21:08:23.482 | -09:00:50.49 | SN Ia | 0.08 |
Comments