ePESSTO+ spectroscopic classification of optical transients

ATel #12857; E. Swann, C. Frohmaier (ICG; Portsmouth), P. Short, M. Nicholl (Edinburgh), M. Dennefeld (IAP), S. C. Williams (Lancaster), P. Pessi (IALP), I. Arcavi (Tel Aviv), J. Anderson (ESO), T. Muller Bravo (Southampton), T.-W. Chen (MPE), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), O. Yaron (Weizmann), D. R. Young (QUB), 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)
on 10 Jun 2019; 14:26 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Matt Nicholl (mrn@roe.ac.uk)

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ePESSTO+, the advanced Public ESO Spectroscopic Survey for Transient Objects (see Smartt et al. 2015, A&A, 579, 40 http://www.pessto.org ), reports the following supernova classifications. Targets were supplied by the Zwicky Transient Facility (https://www.ztf.caltech.edu/; Kulkarni et al. 2018, ATel 11266) data stream processed through the Lasair broker (http://lasair.roe.ac.uk/), and by the ATLAS survey, see Tonry et al. (2018, PASP, 130, 064505). All observations were performed on the ESO New Technology Telescope at La Silla on 2019 June 9, using EFOSC2 and Grism 13 (3985-9315A, 18A resolution). Classifications were done with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024) and DASH (Muthukrishna et al. 2019, arXiv:1903.02557). Classification spectra and additional details can be obtained from http://www.pessto.org (via WISeREP) and the IAU Transient Name Server.

 
Survey Name     | IAU Name  | RA (J2000)  | Dec (J2000) | Disc. Date | Source  | Disc Mag |  z     | Type    |  Phase  | Notes 
ZTF19aavlnjz    | SN2019gcu | 14:10:02.58 | +04:25:47.3 |  20190530  | ZTF     |   18.8   | 0.085  |  Ia     |  +7     |  
ZTF19aavorpa    | SN2019gme | 17:36:27.74 | +13:24:11.0 |  20190529  | ZTF     |   19.4   | 0.08   |  Ia     |  +3     |  
ZTF19aavxfib    | AT2019gte | 13:06:39.42 | -01:32:54.4 |  20190531  | ZTF     |   19.2   | 0.086  |  TDE ?  |         | (1) 
ZTF19aawmqtd    | SN2019gwg | 17:28:21.17 | +23:44:39.3 |  20190601  | ZTF     |   19.5   | 0.057  |  Ia-91T |  -6     |  
ATLAS19mgl      | SN2019hch | 15:27:19.51 | +28:03:25.9 |  20190607  | ATLAS   |   19.0   | 0.07   |  Ia     |  At max |  
ZTF19aaxibby    | SN2019hbs | 21:22:21.64 | -12:48:48.9 |  20190604  | ZTF     |   18.8   | 0.056  |  Ia     |  +3     |  
ZTF19aaxnlps    | SN2019hcf | 19:45:32.61 | -15:30:57.4 |  20190605  | ZTF     |   19.7   | 0.081  |  Ia     |  At max |  

(1) Nuclear transient. Compared to archival SDSS spectrum, ePESSTO+ spectrum shows new broad emission features at rest-frame ~4100 A and ~4600A.