DRAFT
2024-12-28 16:44:11
Type: Object/s-Discovery/Classification
Bibcode: 2024TNSAN.390....1K
ePESSTO+ spectroscopic classification of optical transients
Authors: N. Koivisto, C. Vassallo, T. Kravtsov, C. Humina, N. Pyykkinen (UTU), J. Terwel (TCD), S. Faris (TAU), M. Fulton, J. Sollerman (Stockholm), A. Kumar (RHUL/Warwick), S. Srivastav (QUB), A. Horowicz (Weizmann), J. Anderson (ESO), T.-W. Chen (NCU), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), T. Müller Bravo (Trinity), P. Pessi (Stockholm), O. Yaron (Weizmann), D. Young (QUB), J. Tonry, L. Denneau, H. Weiland, A. Lawrence, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), S. J. Smartt (Oxford/QUB), K. W. Smith, M. McCollum, T. Moore, M. Nicholl, J. Weston (QUB), L. Shingles (GSI/QUB), L. Rhodes (Oxford), J. Sommer (LMU/QUB), A. Rest (STScI), C. Stubbs (Harvard), X. Sheng, A. Aamer, C. R. Angus, D. Magill (QUB), P. Ramsden (QUB/Birmingham)
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Abstract:
This report includes classifications of 9 Type Ia's, a SLSN-I and a type Ic SN. We encourage followup observations.

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) and by the ALeRCE broker (Forster et al. 2020 2021AJ....161..242F) and 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 2024 Dec 27, 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.

Show current TNS values
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 2024acxl [ZTF24abuvjgs] 11:49:30.820 -06:13:35.20 SN Ia 0.08 LCRS B114657.4-055653 > +20 Redshift from SNID. 11:49:30.820 -06:13:35.20 SN Ia 0.08
TNS 2024aehb [ATLAS24rnf] 03:27:17.736 -50:33:05.50 SN Ia 0.12 at max Redshift from SNID. 03:27:17.736 -50:33:05.50 SN Ia 0.12
TNS 2024aemh [ATLAS24ror] 12:23:54.934 -26:52:50.11 SN Ia 0.07 +4 to +7 Redshift from SNID. 12:23:54.934 -26:52:50.11 SN Ia 0.07
TNS 2024aeno [ZTF24abyksuf] 10:46:26.373 -18:07:11.22 SN Ia 0.11 WISEA J104626.36-180711.1 +4 to +7 Redshift from SNID. 10:46:26.373 -18:07:11.22 SN Ia 0.11
TNS 2024aenp [ZTF24abyityc] 04:14:57.110 -06:59:41.59 SN Ia 0.08 WISEA J041457.10-065941.9 -7 to -4 Redshift from SNID. 04:14:57.110 -06:59:41.59 SN Ia 0.08
TNS 2024aeuk [ZTF24abyssre] 08:19:04.018 +22:45:04.81 SN Ia 0.11 -7 to -4 Redshift from SNID. 08:19:04.018 +22:45:04.81 SN Ia 0.11
TNS 2024aeup [ZTF24abzklro] 08:53:37.561 +01:43:07.75 SN Ia 0.0582 2MASX J08533726+0143033 0.058189 -7 to -4 Host redshift from NED. 08:53:37.561 +01:43:07.75 SN Ia 0.0582
TNS 2024aexm [ATLAS24rud] 04:20:08.910 -27:54:57.23 SN Ia 0.0738 2MASX J04200896-2754576 0.073768 at max Host redshift from NED. 04:20:08.949 -27:54:57.86 SN Ia 0.0738
TNS 2024aewe [GOTO24jjj] 11:16:31.959 +00:03:14.71 SN Ia 0.0982 2MASX J11163179+0003110 0.098243 -7 to -4 Host redshift from NED. 11:16:31.935 +00:03:15.08 SN Ia 0.0982
TNS 2024abre [ZTF24abteeyt] 23:30:51.734 -18:25:48.75 SLSN-I 0.17 Redshift from SNID. 23:30:51.730 -18:25:48.76 SLSN-I 0.17
TNS 2024aepi [ZTF24abyqzpi] 04:37:01.095 -10:29:11.69 SN Ic 0.03 WISEA J043701.09-102912.0 at max Redshift from SNID. 04:37:01.095 -10:29:11.69 SN Ic 0.03

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