DRAFT
2025-01-10 16:19:20
Type: Object/s-Discovery/Classification
Bibcode: 2025TNSAN..11....1S
ePESSTO+ spectroscopic classification of optical transients
Authors: I. Salmaso, F. Ragosta, R. Carini, S. Benetti, A. Melandri (INAF), C. Gutierrez (IEEC/ICE-CSIC), A. Kumar (RHUL/Warwick), K. Tsalapatas (Stockholm Univ.), E. Zimmerman (Weizmann), J. Anderson (ESO), T.-W. Chen (NCU), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), T. Müller Bravo (Trinity), M. Nicholl (QUB), O. Yaron (Weizmann), D. Young (QUB), P. Pessi (Stockholm), 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. McCollum, T. Moore, J. Weston (QUB), L. Shingles (GSI/QUB), L. Rhodes (Oxford), J. Sommer (LMU/QUB), A. Rest (STScI), C. Stubbs (Harvard), X. Sheng, A. Aamer, C. R. Angus, D. Magill (QUB), P. Ramsden (QUB/Birmingham)
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Abstract:
This report includes classifications of 4 Type Ia's. We encourage follow-up observations.

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 ATLAS survey (Smith et al. 2020 2020PASP..132h5002S), and the Zwicky Transient Facility ZTF (Bellm et al. 2019 2019PASP..131a8002B).

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2025 January 09, 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).

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 2024agag [ATLAS24sbz] 07:06:52.291 -53:15:36.95 SN Ia 0.052 Redshift from narrow Halpha line of the host 07:06:52.291 -53:15:36.95 SN Ia 0.052
TNS 2024agky [ATLAS25acl] 09:21:48.929 -33:19:09.12 SN Ia 0.03 at max Redshift from SNID 09:21:48.929 -33:19:09.12 SN Ia 0.03
TNS 2024agkq [ZTF25aaabnxh] 04:01:43.399 -22:45:47.76 SN Ia 0.06 around max Redshift from SNID 04:01:43.399 -22:45:47.76 SN Ia 0.06
TNS 2024agfu [ATLAS24scc] 05:00:13.671 -22:11:07.77 Other 0.051 Blue continuum. Redshift from the possibile associated galxy (ESO552-G046) 05:00:13.671 -22:11:07.77
TNS 2025jh [ATLAS25afz] 12:57:39.817 -31:59:20.87 SN Ia 0.04 around max Redshift from SNID 12:57:39.817 -31:59:20.87 SN Ia 0.04

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