AstroNote 2019-29

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2019-06-10 14:29:09
Type: Object/s-Discovery/Classification
ePESSTO+ spectroscopic classification of optical transients
Authors: E. Swann, C. Frohmaier (ICG; Portsmouth), P. Short, M. Nicholl (Edinburgh), M. Dennefeld (IAP), S. C. Williams (Lancaster), P. Pessi (IALP), J. Anderson (ESO), T. Muller Bravo (Southampton), T.-W. Chen (MPE), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), O. Yaron (Weizmann), D. R. Young (QUB), I. Manulis (Weizmann), J. Tonry, L. Denneau, A. Heinze, H. Weiland (IfA, Univ. of Hawaii), B. Stalder (LSST), A. Rest (STScI), K.W. Smith, S. J. Smartt, O. McBrien, S. Srivastav (QUB)
Source Group: ePESSTO+

ePESSTO+, the advanced Public ESO Spectroscopic Survey for Transient Objects (see Smartt et al. 2015, A&A, 579, 40<> ), reports the following supernova classifications. Targets were supplied by the Zwicky Transient Facility (; Kulkarni et al. 2018, ATel 11266) data stream processed through the Lasair broker (, and by the ATLAS survey, see Tonry et al. (2018, PASP, 130,  064505).

All observations were performed on the ESO New Technology Telescope at La Silla on 2019 June 9, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were done with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024), GELATO (Harutyunyan et al., 2008,  A&A, 488, 383) and DASH (Muthukrishna et al. 2019, arXiv:1903.02557)


Classification spectra and additional details can be obtained from<> (via WISeREP) and the IAU Transient Name Server.

Show current TNS values
CatalogNameReported RAReported DECReported Obj-TypeReported RedshiftHost NameHost RedshiftSourceReported TypeReported RedshiftPhase (days)RemarksTNS RATNS DECTNS Obj-TypeTNS Redshift
TNS2019gcu [ZTF19aavlnjz]14:10:02.589+04:25:47.36SN Ia0.085ZTFIa0.085+714:10:02.589+04:25:47.36SN Ia0.085
TNS2019gme [ZTF19aavorpa]17:36:27.746+13:24:11.02SN Ia0.08ZTFIa0.08+317:36:27.746+13:24:11.02SN Ia0.08
TNS2019gte [ZTF19aavxfib]13:06:39.424-01:32:54.42TDE0.086ZTFTDE?0.086Nuclear transient. Compared to archival SDSS spectrum, ePESSTO+ spectrum shows broad emission features at rest-frame ~4100A and ~4600A13:06:39.424-01:32:54.42TDE0.086
TNS2019gwg [ZTF19aawmqtd]17:28:21.178+23:44:39.35SN Ia-91T-like0.057ZTFIa-91T0.057-617:28:21.180+23:44:39.30SN Ia0.057
TNS2019hch [ATLAS19mgl]15:27:19.510+28:03:26.00SN Ia0.07ATLASIa0.07At max15:27:19.510+28:03:26.00SN Ia0.07
TNS2019hbs [ZTF19aaxibby]21:22:21.645-12:48:49.00SN Ia0.056ZTFIa0.056+321:22:21.648-12:48:49.04SN Ia0.056
TNS2019hcf [ZTF19aaxnlps]19:45:32.611-15:30:57.45SN Ia0.081ZTFIa0.081At max19:45:32.611-15:30:57.45SN Ia0.081