Classification of 2 DES supernova by NTT

ATel #11151; C. R. Angus, M. Smith (University of Southampton), E. Ahn, D. A. Finley, J. Frieman, J. Marriner, W. Wester (Fermilab), G. Aldering, R. Gupta, A. G. Kim, R. C. Thomas (Lawrence Berkeley National Laboratory), K. Barbary, J. S. Bloom, D. Goldstein, P. Nugent, S. Perlmutter (Lawrence Berkeley National Laboratory + University of California, Berkeley), R. J. Foley, Y.-C. Pan (University of California, Santa Cruz), R. Casas, F. J. Castander (ICE, IEEC/CSIC, Barcelona), A. Papadopoulos (Cyprus University), E. Morganson (University of Illinois at Urbana-Champaign), S. Desai, K. Paech (Ludwig Maximilians University, Munich), R. C. Smith (NOAO/CTIO), M. Schubnell (University of Michigan), C. Lidman (Australian Astronomical Observatory), A. Moller, D. Muthukrishna, R., B. E. Tucker, F. Yuan, B. Zhang (Mount Stromlo Observatory, Australian National University), T. M. Davis, S. Hinton (University of Queensland), J. Asorey (Swinburne University of Technology), G. F. Lewis (University of Sydney), S. Uddin (Purple Mountain Observatory), R. Kessler, J. Lasker, D. Scolnic (University of Chicago), D. J. Brout, C. D'Andrea, L. Gladney, M. March, M. Sako, R. C. Wolf (University of Pennsylvania), P. J. Brown, K. Krisciunas, N. Suntzeff (Texas A&M University), E. Macaulay, R. Nichol (University of Portsmouth), R. Maartens (University of the Western Cape), M. Childress, S. Prajs, M. Sullivan (University of Southampton), E. Kovacs, S. Kuhlmann, H. Spinka (Argonne National Laboratory)
on 10 Jan 2018; 03:41 UT
Credential Certification: Mathew Smith (

Subjects: Optical, Supernovae

We report optical spectroscopy of 2 supernova discovered by the Dark Energy Survey (ATel #4668). The spectra were obtained using the ESO New Technology Telescope at La Silla on 2017 Dec 06 and 2017 Dec 08 using EFOSC2. Object classification was performed using SNID (Blondin & Tonry, 2007, ApJ, 666, 1024) and superfit (Howell et al, 2005, ApJ, 634, 119), the details of which are reported in the table below.

Name       | RA (J2000)| Dec (J2000)|Discovery  |Discovery|Spectrum   |Redshift| Type   |  Phase   |Notes 
           |           |            |Date (UT)  |Mag (r)  |Date (UT)  |        |        |          | 
DES17C1ffz |03:35:52.08|-26:59:29.6 |2017 Nov 13|  23.7   |2017 Dec 08| 0.0905 | SNIb/c | near-max | a 
DES17C2fnw |03:33:49.48|-29:36:37.6 |2017 Nov 24|  22.9   |2017 Dec 06| 0.16   | SNIa?  | pre-max  | 
a). Redshift from galaxy features