AstroNote 2019-12

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2019-05-12 19:06:58
Type: Object/s-Discovery/Classification
ePESSTO+ spectroscopic classification of optical transients
Authors: P. Short, M. Nicholl (Univ. Edinburgh), T. Muller, C. Angus, M. Pursiainen (Univ. Southampton), C. Barbarino (Univ. Stockholm), M. Dennefeld (IAP), S. C. Williams (Lancaster), J. Anderson (ESO), T.-W. Chen (MPE), C. Inserra (Cardiff), O. Yaron, 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, D. R. Young (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) and by 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).

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on 2019 May 12 (UTC), 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 (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 RedshiftPhaseRemarksTNS RATNS DECTNS Obj-TypeTNS Redshift
TNS2019etn [ATLAS19ivu]14:24:25.948-19:11:53.78+4 to +7 dRedshift derived from host galaxy lines14:24:25.948-19:11:53.78SN Ia0.074
TNS2019eww [ATLAS19jyi]22:06:33.349-08:02:10.59> +20 d22:06:33.349-08:02:10.59SN II0.028
TNS2019exg [ATLAS19kdv]21:38:32.197-04:42:11.89> +20 dRedshift derived from host galaxy lines21:38:32.197-04:42:11.89SN Ia0.01
TNS2019etc [ZTF19aatvljp]21:06:08.112+14:58:53.94around maxMatches TNS classification report no. 401321:06:08.112+14:58:53.94SN Ia0.052