AstroNote 2019-14

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2019-05-15 06:13:43
Type: Object/s-Discovery/Classification
ePESSTO+ spectroscopic classification of optical transients
Authors: M. Nicholl, P. Short (Univ. Edinburgh), C. Angus (Univ. Southampton), T. Muller, M. Pursiainen (Univ. Southampton), C. Barbarino (Univ. Stockholm), M. Dennefeld (IAP), S. C. Williams (Lancaster), A. Pastorello (INAF), M. Smith (Univ. Southampton), S. Benetti (INAF), R. Cartier (CTIO), J. Anderson (ESO), T.-W. Chen (MPE), C. Inserra (Cardiff), D. R. Young (QUB), O. Yaronת 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 All Sky Automated Survey for SuperNovae ASAS-SN (see Shappee et al. 2014 2014ApJ...788...48S) 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 14 (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) 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 RedshiftSourcePhase (days)RemarksTNS RATNS DECTNS Obj-TypeTNS Redshift
TNS2019evq [Gaia19bsj]21:13:54.720+11:21:25.49GaiaLocation consistent with MASIV J2113+112121:13:54.720+11:21:25.49QSO1.316
TNS2019exh [ATLAS19kej]20:37:40.127+05:30:12.25ATLASMatches classification reported in TNS Classification Report No. 406720:37:40.127+05:30:12.25CV
TNS2019exy [ASASSN-19mh]23:45:41.784-38:31:04.33ASAS-SNat maxRedshift obtained from template fitting. The redshift from the fit approximately matches the host galaxy photo-z.23:45:41.784-38:31:04.33SN Ia0.049
TNS2019fce [ATLAS19kmq]20:08:07.442+10:31:30.52ATLAS-7 to -4Redshift obtained from best fitting template.20:08:07.442+10:31:30.52SN II0.041
TNS2019fcf [ATLAS19kmr]17:40:17.632+17:41:38.82ATLAS-7 to -4Redshift obtained from best fitting template.17:40:17.630+17:41:39.16SN Ia0.052
TNS2019fcg [ASASSN-19mk]21:30:28.486-32:36:43.31ASAS-SN> +20Possibly a Ia-CSM / Ic-CSM; spectrum shows a close match to SN 2005gj.21:30:28.510-32:36:44.28SN IIn0.055
TNS2019fcn [ASASSN-19ml]08:07:08.057-28:03:22.75ASAS-SNat maxRedshift obtained from the host galaxy.08:07:08.054-28:03:22.90SN II0.003
TNS2019fda [ZTF19aaumtxz]17:47:49.043+18:41:13.05ZTF17:47:49.040+18:41:13.06Varstar