AstroNote 2019-13

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2019-05-13 18:11:33
Type: Object/s-Discovery/Classification
ePESSTO+ spectroscopic classification of optical transients
Authors: M. Nicholl, P. Short (Univ. Edinburgh), C. Angus, T. Muller, M. Pursiainen (Univ. Southampton), C. Barbarino (Univ. Stockholm), M. Dennefeld (IAP), S. C. Williams (Lancaster), D. A. Perley (LJMU), S. Benetti (INAF), J. Anderson (ESO), T.-W. Chen (MPE), C. Inserra (Cardiff), D. R. Young (QUB), 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 (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), the PMO-Tsinghua Transient Survey PTSS and by the ESA Gaia Photometric Science Alerts Team DPAC.

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on 2019 May 13 (UTC), using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were done using SNID (Blondin & Tonry 2007 2007ApJ...666.1024B), GELATO (Harutyunyan et al. 2008 2008A&A...488..383H) 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 RedshiftSourcePhaseRemarksTNS RATNS DECTNS Obj-TypeTNS Redshift
TNS2019dsg [ZTF19aapreis]20:57:02.974+14:12:15.86ZTFRedshift derived from host galaxy lines20:57:02.974+14:12:15.86TDE0.0512
TNS2019dts [Gaia19blq]22:34:06.160+05:34:16.82Gaia+8 to +10 dRedshift derived from host galaxy lines22:34:06.160+05:34:16.82SN II0.015
TNS2019dxr [ZTF19aarnqys]15:11:27.144+05:12:01.59ZTF+11 to +20 dRedshift derived from host galaxy lines15:11:27.154+05:12:01.99SN Ib0.04
TNS2019ejk [PTSS-19clej]13:16:52.280+12:32:44.02PTSSThe spectrum shows a blue continuum and narrow host galaxy emission lines consistent with z=0.003. No clear stellar-like source is seen in the 2D spectrum.13:16:52.280+12:32:44.020.003
TNS2019enz [ATLAS19ine]13:57:06.098+27:59:38.71ATLASpre-maxRedshift estimated from template fitting.13:57:06.081+27:59:38.07SLSN-I0.22