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Classification of 17 DES supernova with OzDES

ATel #10759; D. Muthukrishna, R. G. Sharp, B. E. Tucker, A. Moller, N. E. Sommer (Mt Stromlo Observatory, Australian National University), J. Asorey (University of Queensland), G. F. Lewis (University of Sydney), C. Lidman (Australian Astronomical Observatory), J. Mould (Swinburne University of Technology), E. Macaulay (University of Portsmouth), R. Maartens (University of the Western Cape), 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), F. Yuan, B. Zhang (Mount Stromlo Observatory, Australian National University), T. M. Davis, S. Hinton (University of Queensland), D. Parkinson (Korea Astronomy and Space Science Institute), 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), R. Nichol (University of Portsmouth), M. Childress, S. Prajs, M. Smith, M. Sullivan (University of Southampton)
on 19 Sep 2017; 21:02 UT
Credential Certification: Brad Tucker (brad@mso.anu.edu.au)

Subjects: Optical, Supernovae

We report new spectroscopic classifications by OzDES of supernovae discovered by the Dark Energy Survey (ATEL #4668). The spectra (370-885nm) were obtained with the AAOmega Spectrograph (Saunders et al. 2004, SPIE, 5492, 389) and the 2dF fibre positioner at the Anglo-Australian Telescope (AAT). Object classification was performed using SNID (Blondin & Tonry, 2007, ApJ, 666, 1024), superfit (Howell and Wang, 2002, BAAS, 34, 1256) and DASH (https://github.com/daniel-muthukrishna/DASH), 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)  |        |       |          | 
DES17E2cc  |00:36:19.12|-43:57:51.2 |2017 Aug 15|  21.9   |2017 Aug 25| 0.149  | SNII  | post-max | a 
DES17C3de  |03:28:08.57|-27:45:07.5 |2017 Aug 21|  21.7   |2017 Aug 25| 0.107  | SNII  | post-max | a 
DES17C3eg  |03:34:24.58|-27:38:02.2 |2017 Aug 21|  20.4   |2017 Aug 25| 0.117  | SNIa  | +3 weeks | a 
DES17X3az  |02:22:43.57|-04:54:54.4 |2017 Aug 16|  22.8   |2017 Aug 25| 0.56   | SNIa? | +1 week  | 
DES17X3bd  |02:25:55.92|-04:22:44.3 |2016 Aug 16|  22.3   |2017 Aug 25| 0.141  | SNII? | post-max | a 
DES17X3ca  |02:22:40.19|-05:00:36.1 |2017 Aug 16|  21.7   |2017 Aug 25| 0.198  | SNIa? | +6 weeks | a 
DES17X3cb  |02:22:01.24|-04:37:59.0 |2017 Aug 16|  21.8   |2017 Aug 25| 0.317  | SNIa  |  at-max  | a 
DES17X3ct  |02:25:53.36|-04:39:12.7 |2016 Aug 16|  22.1   |2017 Aug 25| 0.206  | SNIbc?| post-max | a 
DES17E2a   |00:40:06.37|-43:38:58.8 |2017 Aug 15|  22.3   |2017 Aug 26| 0.295  | SNIa? | +1 month | a 
DES17E2b   |00:35:31.79|-44:18:27.2 |2017 Aug 15|  21.6   |2017 Aug 26| 0.227  | SNIa  | +1 month | a 
DES17E2aq  |00:41:41.40|-44:36:02.2 |2017 Aug 15|  23.0   |2017 Aug 26| 0.352  | SNIa  | -1 week  | a 
DES17E2ar  |00:35:59.37|-43:45:05.2 |2017 Aug 15|  22.7   |2017 Aug 26| 0.513  | SNIa  | +10 days | a 
DES17E2bw  |00:35:30.66|-43:56:0.43 |2017 Aug 15|  20.4   |2017 Aug 26| 0.147  | SNIa  | +2 weeks | a 
DES17E2bx  |00:39:09.53|-43:14:40.1 |2017 Aug 15|  21.4   |2017 Aug 26| 0.272  | SNIa  |  at-max  | a 
DES17E1by  |00:27:17.70|-42:45:23.2 |2017 Aug 15|  22.2   |2017 Aug 26| 0.287  | SNIa  | -1 week  | a 
DES17E2ce  |00:41:17.54|-44:02:17.6 |2017 Aug 15|  21.7   |2017 Aug 26| 0.269  | SNIa  | +3 weeks | a 
DES17E2ci  |00:42:23.10|-43:33:03.9 |2016 Aug 15|  22.3   |2017 Aug 26| 0.127  | SNII  | post-max | a 
a). Redshift from galaxy features