DRAFT
2024-01-14 14:12:47
Type: Object/s-Discovery/Classification
Bibcode: 2024TNSAN..18....1G
ePESSTO+ spectroscopic classification of optical transients
Authors: M. Gromadzki, K. Grzesiak (Warsaw), M. Bronikowski (Nova Gorica), A. Kumar (Warwick), X. Sheng (QUB), J. Anderson (ESO), T.-W. Chen (NCU), C. Inserra (Cardiff), E. Kankare (Turku), T. Müller Bravo (ICE), M. Nicholl (QUB), 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. Fulton, M. McCollum, T. Moore, S. Srivastav, J. Weston (QUB), L. Shingles (GSI/QUB), L. Rhodes (Oxford), J. Sommer (LMU/QUB), A. Rest (STScI), C. Stubbs (Harvard), K. C. Chambers, M. Huber, A. Schultz, T. de Boer, J. Bulger, J. Fairlamb, C.-C. Lin, T. Lowe, E. Magnier, P. Minguez, R. J. Wainscoat, H. Gao (IfA, Hawaii)
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Abstract:
This report includes classifications of three Type Ia's, one Type IIb, one Type Ic and one Type Ic-BL

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 Pan-STARRS Survey for Transients (Chambers et al. 2016 2016arXiv161205560C), 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), the All Sky Automated Survey for SuperNovae ASAS-SN (see Shappee et al. 2014 2014ApJ...788...48S).

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2024 January 13, using EFOSC2 and Grisms 11 (3380-7520, 13.8A resolution) and 13 (3985-9315A, 18A resolution). Classifications were done using SNID (Blondin & Tonry 2007 2007ApJ...666.1024B), GELATO (Harutyunyan et al. 2008 2008A&A...488..383H), Superfit (Howell et al. 2005 2005ApJ...634.1190H) 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 Source Phase (days) Remarks TNS RA TNS DEC TNS Obj-Type TNS Redshift
TNS 2024bt [PS24al] 03:52:02.322 -16:06:45.03 SN Ia 0.12 Redshift from SNID 03:52:02.322 -16:06:45.03 SN Ia 0.12
TNS 2024py [ZTF23aakanao] 13:03:56.321 -17:15:23.22 SN IIb 0.067 Redshift found by measuring Ca II H&K absorption lines, estimated A_V~1 by matching template of SN 1993J at maximum 13:03:56.321 -17:15:23.22 SN IIb 0.067
TNS 2024tv [ATLAS24aoi] 08:24:34.567 -22:58:11.24 SN Ic-BL 0.048 Redshift found by measuring narrow emission lines 08:24:34.560 -22:58:10.85 SN Ic-BL 0.048
TNS 2024yu [ASASSN-24ak] 07:39:58.526 -76:04:32.34 SN Ia 0.035 WISEA J074001.00-760426.2 0.034557 Known host redshift 07:39:58.526 -76:04:32.34 SN Ia 0.035
TNS 2024iy [ZTF24aaahxph] 09:59:19.932 -03:21:16.91 SN Ia 0.068 2MASXJ09591991-0321177 0.068 Known host redshift. 09:59:19.932 -03:21:16.91 SN Ia 0.068
TNS 2024yf [ATLAS24art] 12:58:05.046 -40:54:24.47 SN Ic 0.03 Redshift from SNID 12:58:05.050 -40:54:24.48 SN Ic 0.03

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