DRAFT
2026-06-11 15:45:37
Type: Object/s-Discovery/Classification
Bibcode: 2026TNSAN.190....1G
ePESSTO+ spectroscopic classification of optical transients
Authors: M. Ghendrih (Lancaster), C.G. Touchard-Paxton (Trinity), E. Charleton, P. Wiseman, M. Quilt, P. Clark (Southampton), A. Aryan (NCU), F. Onori (INAF), S. Faris (Tel Aviv), J. Sollerman (Stockholm), G. Dimitriadis (Lancaster), M. H. Lee (NCU), A Reguitti (INAF), J. Anderson (ESO), T.-W. Chen (NCU), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), T. Müller Bravo (Trinity), P. Pessi (Warsaw), O. Yaron (Weizmann), D. Young (QUB), A. Horowicz (Weizmann), J. Tonry, L. Denneau, H. Weiland, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), S. J. Smartt, K. W. Smith (Oxford/QUB), S. Srivastav, H. Stevance (Oxford), D. R. Young, 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), T.-W. Chen (NCU), C. Stubbs (Harvard)
Source Group: ePESSTO+
Keywords: Spectroscopy, Transient, Supernova, Optical
Abstract:
This report includes classifications of a Type Ia and a nova.

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).

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2026 06 10, using EFOSC2 and Grism 11 (3345-7470, 14A resolution). Classifications were done using SNID-SAGE (Stoppa F., Smartt S.~J., 2026, arXiv, arXiv:2603.28741. doi:10.48550/arXiv.2603.28741).

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 2026ofr [ATLAS26gre] 13:21:52.498 -36:38:07.54 Nova 0.003 NGC 5102 0.001556 Transient spectrum now displays narrow, strong Balmer emission lines that are inconsistent with the host spectrum. Overall shape and emission lines are now consistent with a high-inclination nova. Reported redshift from SNID-SAGE. 13:21:52.498 -36:38:07.54 Nova 0.003
TNS 2026nrl [ATLAS26gjn] 19:27:28.750 -48:42:52.35 SN Ia 0.066 Post-peak Redshift and phase from SNID-SAGE. 19:27:28.750 -48:42:52.35 SN Ia 0.066

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