DRAFT
2022-01-24 16:12:22
Type: Object/s-Discovery/Classification
Bibcode: 2022TNSAN..20....1R
ePESSTO+ spectroscopic classification of optical transients
Authors: A. Reguitti, J. Pineda (UNAB), J. Silvestre (CENTRA), G. Pignata (UNAB), M. Dennefeld (IAP), R. Carini (INAF-OAR), S. Taubenberger (MPA), C. Gutiérrez (Turku), S. Benetti (INAF-OAPd), T.-W. Chen (Stockholm), J. Anderson (ESO), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), T. Müller Bravo (ICE), M. Nicholl (Birmingham), I. Irani, O. Yaron (Weizmann), I. Arcavi (Tel Aviv), K. W. Smith, S. J. Smartt, S. Srivastav, J. Gillanders, M. Fulton, D. R. Young, L. Shingles, M. McCollum, C. Richman, L. Cai, T. Moore (QUB), L. Denneau, J. Tonry, H. Weiland (Hawaii), A. Heinze, B. Stalder (LSST), A. Rest (STScI), D. E. Wright (Minnesota)
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Abstract:
This report includes the classification of 1 SN II.

ePESSTO+, the advanced Public ESO Spectroscopic Survey for Transient Objects (Smartt et al. 2015 2015A&A...579A..40S), reports the following supernova classification.

The target was supplied by the ATLAS survey (Smith et al. 2020 2020arXiv200309052S).

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2022 January 23, using EFOSC2 and Grism 13 (3650-9250 A, resolution 17 A). The classification was done using GELATO (Harutyunyan et al. 2008 2008A&A...488..383H).

The classification spectrum and additional details can be obtained from http://www.pessto.org (via WISeREP) and the IAU Transient Name Server.

The classified object is 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 2022aal [ATLAS22cfc] 04:22:23.601 -66:54:09.42 SN II 0.026 6dF J0422251-665352 0.0261 host +6 The best fit is found with SN 2011fu (Type IIb). A broad absorption feature may possibly be Hbeta at redshift z=0.135. Then, the object would be a SLSN-II with an absolute magnitude of M=-20.9. 04:22:23.601 -66:54:09.42 SN II 0.026

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