AstroNote 2019-78

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2019-08-28 13:54:01
Type: Object/s-Discovery/Classification
ePESSTO+ spectroscopic classification of optical transients
Authors: E. Callis, S. Brennan (Univ. Collage Dublin), N. Ihanec, M. Gromadzki (Warsaw), M. T. Botticella (INAF-Capodimonte), H. Kuncarayakti (Turku) , J. Anderson (ESO), T. Muller Bravo (Southampton), T.-W. Chen (MPE), C. Inserra (Cardiff), E. Kankare (Turku), M. Nicholl (Edinburgh), O. Yaron, l. Manulis (Weizmann), D. Young (QUB)
Source Group: ePESSTO+
This report includes classifications of two Type Ia's.

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 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 August 27, 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
TNS2019ope [ASASSN-19uk]23:06:52.557-37:51:01.18SN Ia0.0604422MASX J23065255-37505660.060442ASAS-SN-223:06:52.557-37:51:01.18SN Ia0.06
TNS2019oqr [ASASSN-19up]23:51:15.835-37:42:38.95SN Ia0.0506482MASX J23511587-37424120.050648ASAS-SN-123:51:15.835-37:42:38.95SN Ia0.05