DRAFT
2024-04-02 15:31:15
Type: Object/s-Discovery/Classification
Bibcode: 2024TNSAN..88....1H
ePESSTO+ spectroscopic classification of optical transients
Authors: A. van Hoof, J. van Dalen, Anastasia Shlentsova (Radboud), M. Fraser (UCD), T.-W. Chen (NCU), J.R.D. Duarte, S. Gonzalez (CENTRA), L Galbany (IEEC), E. Zimmerman (Weizmann), J. Sollerman (Stockholm), J. Anderson (ESO), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), T. Müller Bravo (ICE), M. Nicholl (QUB), O. Yaron (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, J. Weston (QUB), L. Shingles (GSI/QUB), L. Rhodes (Oxford), J. Sommer (LMU/QUB), A. Rest (STScI), C. Stubbs (Harvar
Source Group: ePESSTO+
Keywords: Transient, Supernova, Optical, Spectroscopy
Abstract:
This report includes classifications of two CVs, eight Type Ia SNe (including SN2024fbo, which is significantly pre-maximum), a Type II SN, and two transients of uncertain nature.

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), 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...3...26S) and by the ALeRCE broker (Forster et al. 2020 2021AJ....161..242F), the Gravitational-wave Optical Transient Observer GOTO (see Dyer et al. 2020, SPIE, 11445 2020SPIE11445E..7GD) and by the ESA Gaia Photometric Science Alerts Team DPAC.

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2024 Apr 01, using EFOSC2 and Grisms 13 (3985-9315A, 18A resolution) and 11 (3380-7520, 13.8A resolution). Classifications were done using DASH (Muthukrishna, Parkinson and Tucker, 2019 2019ApJ...885...85M)

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 2024ees [ZTF24aahalmb] 12:32:42.196 +14:32:27.38 SN II 0.0235 ZTF 12:32:42.185 +14:32:27.37 SN II 0.0235
TNS 2024ett [GOTO24ace] 10:26:39.360 -39:42:00.86 CV GOTO 10:26:39.360 -39:42:00.86 CV
TNS 2024fgc [ATLAS24eok] 14:06:33.406 -42:06:31.95 CV ATLAS 14:06:33.406 -42:06:31.95 CV
TNS 2024eyr [ZTF24aahsmkt] 10:28:06.276 +21:57:46.79 SN 0.038 ZTF 10:28:06.270 +21:57:46.62 SN II 0.037675
TNS 2024eza [ZTF24aahsukk] 14:48:12.144 +26:26:17.75 Other 0.051 ZTF 14:48:12.144 +26:26:17.75 SN II 0.05096
TNS 2024ezr [ZTF24aahtaqk] 17:42:52.887 -02:18:44.40 SN Ia 0.06 ZTF 0 17:42:52.887 -02:18:44.40 SN Ia 0.06
TNS 2024ezs [ZTF24aahihcd] 14:58:39.051 +17:13:00.64 SN Ia 0.09 ZTF 7 14:58:39.055 +17:13:00.48 SN Ia 0.09
TNS 2024fbo [ATLAS24emf] 13:06:13.320 -30:09:40.45 SN Ia 0.0115 ATLAS -10 13:06:13.289 -30:09:40.81 SN Ia 0.0115
TNS 2024fbt [ATLAS24emm] 10:59:09.654 -04:28:40.76 SN Ia 0.0686 ATLAS 0 10:59:09.648 -04:28:40.60 SN Ia 0.0686
TNS 2024fcd [ATLAS24emr] 11:51:10.048 +00:14:48.96 SN Ia 0.04 ATLAS 0 11:51:10.046 +00:14:48.87 SN Ia 0.04
TNS 2024fcn [ZTF24aahsupm] 12:14:08.140 +28:17:42.73 SN Ia 0.06 ZTF -4 12:14:08.132 +28:17:42.58 SN Ia 0.06
TNS 2024fda [ZTF24aaiadvl] 16:23:29.306 +08:28:15.56 SN Ia-91T-like 0.12 ZTF -4 16:23:29.278 +08:28:15.42 SN Ia-91T-like 0.12
TNS 2024fgn [Gaia24bbm] 10:44:50.020 -43:07:05.16 SN Ia 0.06 Gaia 7 10:44:50.020 -43:07:05.16 SN Ia 0.06

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