DRAFT
2024-11-15 17:10:53
Type: Object/s-Discovery/Classification
Bibcode: 2024TNSAN.338....1T
ePESSTO+ spectroscopic classification of optical transients
Authors: K. Tsalapatas, Y. Hu, P. J. Pessi, A. Gkini, A. Singh, A. Gangopadhyay, J. Sollerman (SU), M. Dennefeld (IAP), T-W. Chen (NCU), J. Anderson (ESO), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), T. Müller Bravo (Trinity), O. Yaron (Weizmann), D. Young (QUB), G. Dimitriadis (Lancaster), S. Benetti (INAF), E. Zimmerman (Weizmman), A. Horowicz (Weizmann), 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, S. Srivastav, M. Fulton, 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)
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Abstract:
This report includes classifications of 6 Type Ia SNe and 2 Type II SNe.

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 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 2024 Nov 14, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution) and Grism 11 (3380-7520A, 16A resolution). Classifications were done using SNID (Blondin & Tonry 2007 2007ApJ...666.1024B) and NGSF (Next Generation SuperFit; AstroNote 2022-191, Howell et al. 2005 2005ApJ...634.1190H).

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 Remarks TNS RA TNS DEC TNS Obj-Type TNS Redshift
TNS 2024aawp [ZTF24abrzgil] 23:59:27.359 +21:24:48.35 SN II 0.035 KUG 2356+211 0.035 Best match with Type II SN. Redshift from NED of the host galaxy. 23:59:27.366 +21:24:48.18 SN II 0.035
TNS 2024abbv [ATLAS24qei] 00:34:08.893 -30:46:04.64 SN II 0.005 Best match with Type II SN. Redshift from host galaxy. In agreement with TNS Classification Report No. 18703 00:34:08.900 -30:46:04.58 SN II 0.005
TNS 2024abek [GOTO24igg] 22:13:48.160 -33:15:50.44 SN Ia-91T-like 0.043 LEDA 3183241 0.0433 Best match with Type Ia-91T SN. Redshift obtained from NED of the host galaxy. 22:13:48.160 -33:15:50.44 SN Ia-91T-like 0.043
TNS 2024zzu [GOTO24hxy] 23:34:45.126 -48:14:27.22 SN Ia 0.08 ESO 240- G 007 Best match with Type Ia SN. Redshift from SNID. 23:34:45.110 -48:14:27.35 SN Ia 0.08
TNS 2024aamn [GOTO24ian] 22:51:15.989 -70:58:31.35 SN Ia 0.067 WISEA J225116.08-705830.9 0.067 Best match with Type Ia SN. Redshift obtained from NED of the host galaxy. 22:51:15.970 -70:58:31.12 SN Ia 0.067
TNS 2024zcw [ATLAS24prc] 00:43:27.824 -43:32:26.74 SN Ia 0.14 Best match with Type Ia. Redshift from SNID. The SN could possibly be a Ia 91T like with an absolute mag of about -20.1 mag at maximum light. 00:43:27.793 -43:32:26.58 SN Ia 0.14
TNS 2024aatz [ZTF24abqqxkd] 08:02:37.580 -10:10:02.13 SN Ia 0.107 0.107 Best match with Type Ia SN. Redshift from host lines. 08:02:37.580 -10:10:02.13 SN Ia 0.107
TNS 2024aatd [ZTF24abqvdnb] 04:12:30.574 -22:10:50.90 SN Ia 0.091 WISEA J041230.66-221050.9 0.091 Best match with Type Ia SN. Redshift from host lines. 04:12:30.574 -22:10:50.90 SN Ia 0.091

Comments