AstroNote 2019-18

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2019-05-24 16:26:00
Type: Object/s-Discovery/Classification
ePESSTO+ spectroscopic classification of optical transients
Authors: E. Swann, C. Frohmaier (ICG; Portsmouth), M. Pursiainen, M. Smith (Southampton), P. Short (Edinburgh), S. Prentice (Dublin), T. Nagao (ESO), C. Gutierrez (Southampton), J. Anderson (ESO), T.-W. Chen (MPE), C. Inserra (Cardiff), 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 extended 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 (Tonry et al. 2018 2018PASP..130f4505T), the Zwicky Transient Facility ZTF (Kulkarni 2018 2018ATel11266....1K) - data stream processed through the Lasair broker (Smith, Williams, Young et al. 2019 2019RNAAS...3a..26S) and the All Sky Automated Survey for SuperNovae ASAS-SN (see Shappee et al. 2014 2014ApJ...788...48S).

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2019 May 23, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were done using SNID (Blondin & Tonry 2007 2007ApJ...666.1024B) and Superfit (Howell et al. 2005 2005ApJ...634.1190H).

The classification spectra and additional details can be obtained from (via WISeREP) and the IAU Transient Name Server.

The classified objects are listed in the Related Objects table below.

Show current TNS values
CatalogNameReported RAReported DECReported Obj-TypeReported RedshiftHost NameHost RedshiftSourceReported TypeReported RedshiftPhase (days)RemarksTNS RATNS DECTNS Obj-TypeTNS Redshift
TNS2019ejp [ZTF19aasekcx]14:08:28.592+29:16:11.27SN IIn0.118ZTFSN IIn0.118pre-maxSpectrum consists of blue continuum with strong Balmer emission lines14:08:28.588+29:16:11.10SN IIn0.118
TNS2019ekn [ATLAS19imc]13:54:19.284-38:51:31.78SN Ia0.036ATLASSN Ia0.036+7 to +14 days13:54:19.270-38:51:31.68SN Ia0.036
TNS2019eta [ATLAS19jfc]18:32:18.846-40:03:52.26SN Ia0.066ATLASSN Ia0.066+4 to + 7 days18:32:18.846-40:03:52.26SN Ia0.066
TNS2019fbz [ASASSN-19mi]23:30:55.786-38:00:46.26SN Ia0.045ASSASNSN Ia0.045+4 to +7 days23:30:55.579-38:00:46.70SN Ia0.045
TNS2019fil [ZTF19aauxepf]15:30:41.113-20:23:09.34SN Ia0.085ZTFSN Ia0.085+7 to + 14 days15:30:41.113-20:23:09.34SN Ia0.085
TNS2019ftd [ATLAS19lgf]12:57:41.150-24:28:35.45SN Ia0.028ATLASSN Ia0.028-3 to +3 days12:57:41.135-24:28:35.91SN Ia0.028
TNS2019fte [ATLAS19lgg]12:56:49.013-30:17:20.38SN Ia0.054ATLASSN Ia0.054+4 to +7 days12:56:49.013-30:17:20.38SN Ia0.054