DRAFT
2024-12-24 16:10:06
Type: Object/s-Discovery/Classification
Bibcode: 2024TNSAN.383....1V
ePESSTO+ spectroscopic classification of optical transients
Authors: C. Vassallo, N. Koivisto, T. Kravtsov, C. Humina, N. Pyykkinen (UTU), A. Aryan (NCU), N. Ihanec (Warsaw,ING), A. Gal-Yam, E. Zimmerman (WIS), A. Kumar (RHUL/Warwick), J. Sollerman (Stockholm), S. Srivastav (Oxford), J. Anderson (ESO), T.-W. Chen (NCU), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), T. Müller Bravo (Trinity), P. Pessi (Stockholm), O. Yaron, A. Horowicz (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, S. Srivastav, 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), 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 the classification of 2 type Ia's, a nova and a featureless blue continuum transient. SN2024aeqs is a SN at ~65 Mpc with a recent non-detection from 2 days ago. We encourage followup 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 the Pan-STARRS Survey for Transients (Chambers et al. 2016 2016arXiv161205560C), the ATLAS survey (Smith et al. 2020 2020PASP..132h5002S), the Gravitational-wave Optical Transient Observer GOTO (see Dyer et al. 2020, SPIE, 11445 2020SPIE11445E..7GD) and the BlackGEM survey.

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2024 Dec 23, using EFOSC2 and Grism 11 (3380-7520A, 16A 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 2024adzy [ATLAS24rke] 05:52:13.200 -59:47:30.66 SN Ia 0.06 at max Redshift from SNID 05:52:13.251 -59:47:30.39 SN Ia 0.06
TNS 2024aemf [ATLAS24rop] 01:57:54.820 -35:57:51.75 SN Ia 0.05 at max Redshift from SNID. 01:57:54.820 -35:57:51.75 SN Ia 0.05
TNS 2024aeql [BGEM J132515.39-425833.7] 13:25:15.395 -42:58:33.75 Nova 0.002 Host is Centaurus A, redshift is from NED. 13:25:15.395 -42:58:33.75 Nova 0.002
TNS 2024aeqs [GOTO24jhn] 04:27:01.819 -42:11:59.63 SN 0.015 The spectrum is a featureless blue continuum. Redshift is from NED. 04:27:01.833 -42:11:59.66 SN 0.015

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