AstroNote 2019-109

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DRAFT
2019-10-22 15:57:37
Type: Object/s-Discovery/Classification
ePESSTO+ spectroscopic classification of optical transients
Authors: P. Charalampopoulos, G. Leloudas (DTU Space), L. Izzo, C. R. Angus (DARK/NBI), D. B. Malesani (DTU Space), G. Pignata (UNAB/MAS), T. -W. Chen (MPE), T. Nagao (ESO), J. Anderson (ESO), T. Muller Bravo (Southampton), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), M. Nicholl (Birmingham), O. Yaron (Weizmann), D. Young (QUB), I. Manulis (Weizmann), J. Tonry, L. Denneau, A. Heinze, H. Weiland, H. Flewelling (IfA, Univ. of Hawaii), B. Stalder (LSST), A. Rest (STScI), K. W. Smith, S. J. Smartt, O. McBrien, S. Srivastav (QUB)
Source Group: ePESSTO+
Abstract:
We report spectroscopic observations of AT2019syx. The transient is young, and its spectrum presents a blue, featureless continuum. We strongly encourage further follow-up observations of this event.

ePESSTO+, the advanced 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).

Observations were performed on the ESO New Technology Telescope (NTT) at La Silla on the night of 2019 October 21, 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 http://www.pessto.org (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
TNS2019syx [ATLAS19yna]00:28:02.839-20:44:32.23SDSS J002802.72-204430.0;ATLASTransient spectrum presents a blue, featureless continuum00:28:02.820-20:44:32.32