DRAFT
2021-03-23 17:39:51
Type: Object/s-Discovery/Classification
ePESSTO+ spectroscopic classification of optical transients
Authors: T. Kravtsov, C. Gutiérrez, S. C. Williams, T. Nagao, H. Kuncarayakti (Turku), J. Sollerman, T. Schweyer, S. Yang (Stockholm), S. Benetti (INAF), C. Inserra (Cardiff), J. Anderson (ESO), O. Yaron (Weizmann), T. Müller Bravo (Southampton), T.-W. Chen (Stockholm), M. Gromadzki (Warsaw), E. Kankare (Turku), M. Nicholl (Birmingham), D. Young (QUB), I. Manulis (Weizmann), J. Tonry, L. Denneau, A. Heinze, H. Weiland (IfA, Univ. of Hawaii), B. Stalder (LSST), A. Rest (STScI), K. W. Smith, S. J. Smartt, J. Gillanders, O. McBrien, S. Srivastav, D. R. Young (QUB)
Source Group: ePESSTO+
Abstract:
This report includes classifications of 3 transients.

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 2020arXiv200309052S), 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...3a..26S).

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2021 March 22, 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) and Superfit (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 Host Name Host Redshift Phase Source Remarks TNS RA TNS DEC TNS Obj-Type TNS Redshift
TNS 2021gmk [ATLAS21iqc] 06:07:26.802 -45:00:14.89 SN Ia 0.041 2MASXJ06072702-45001 0.041 at max ATLAS Known host redshift (NED) 06:07:26.802 -45:00:14.89 SN Ia 0.041
TNS 2021gvm [ZTF21aaqjmps] 13:30:01.219 +13:24:40.28 SN 0.025 NGC 5185 0.025 before max ZTF Known host redshift (NED); A blue continuum with possible features at wavelengths of ~4600 and ~6500 Angstrom at the rest frame; similarly to what observed in young type II 13:30:01.224 +13:24:40.28 SN II 0.0246
TNS 2021glv [ZTF21aaqecpl] 17:10:21.720 -03:13:51.86 SN Ia 0.029 WISEA J171021.22-031348.5 0.029447 2MASXJ17102116-03134 0.029 -7 to -4 ZTF Known host redshift (NED) 17:10:21.720 -03:13:51.86 SN Ia 0.029

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