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Classification of 5 DES supernova by Magellan

ATel #11150; L. Galbany (University of Pittsburgh), A. Almeida (U. La Serena), F. Forster (MAS/CMM), S. Gonzalez-Gaitan (U. Lisbon), M. Hamuy (U. de Chile/MAS), Jose Luis Prieto (U. Diego Portales/MAS), F. Olivares (U. de Chile/MAS), E. Kovacs, S. Kuhlmann, H. Spinka (Argonne National Laboratory), 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. Smith, M. Sullivan (University of Southampton)
on 10 Jan 2018; 03:33 UT
Credential Certification: Mathew Smith (matsmith2@gmail.com)

Subjects: Optical, Supernovae

We report optical spectroscopy of 5 supernova discovered by the Dark Energy Survey (ATel #4668). The spectra (425-1050) were obtained using the IMACS on the 6.5m Baade telescope at the Las Campinas Observatory. 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)  |        |        |          | 
DES17X1amf |02:17:46.70|-05:36:01.0 |2017 Sep 18|  23.1   |2017 Nov 10| 0.92   | SLSN-I | near-max | b 
DES17C1bzd |03:39:07.80|-26:11:28.9 |2017 Oct 13|  21.1   |2017 Nov 10| 0.1199 | SNIIb  | pre-max  | a 
DES17X2cvc |02:24:15.00|-06:54:53.2 |2017 Oct 25|  22.3   |2017 Nov 10| 0.3238 | SNIa   | near-max | a  
DES17E1ckd |00:32:40.00|-42:42:38.4 |2017 Oct 18|  23.5   |2017 Nov 11| 0.513  | SNIa?  | near-max | a 
DES17S2cud |02:45:34.37|-01:11:31.4 |2017 Oct 25|  22.9   |2017 Nov 11| 0.5124 | SNIa?  | near-max | a 
a). Redshift from galaxy features  
b). Redshift and classification is consistent with that reported in ATEL #10913