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Classification of 4 DES supernovae by OzDES

ATel #8413; K. Glazebrook (Swinburne University of Technology), A. Amon (University of Edinburgh), C. Lidman (Australian Astronomical Observatory), P. Martini (Ohio State University), B. E.Tucker, F. Yuan, (Australian National University),G. Aldering, 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 Illinois), R. Casas, F. J. Castander (ICE, IEEC/CSIC, Barcelona), S. Desai, K. Paech (Ludwig Maximilians University, Munich), R. C. Smith (NOAO/CTIO), M. Schubnell (University of Michigan), R. Kessler, J. Lasker, D. Scolnic (University of Chicago), D. J. Brout, L. Gladney, M. Sako, R. C. Wolf (University of Pennsylvania), P. J. Brown, K. Krisciunas, N. Suntzeff (Texas A&M University), R. Nichol, A. Papadopoulos (University of Portsmouth), M. Childress, C. D'Andrea, M. Smith, M. Sullivan (University of Southampton), R. Maartens (University of the Western Cape), R. Gupta, E. Kovacs, S. Kuhlmann, H. Spinka (Argonne National Laboratory), E. Ahn, D. A. Finley, J. Frieman, J. Marriner, W. Wester (Fermilab)
on 15 Dec 2015; 01:45 UT
Credential Certification: Brad Tucker (brad@mso.anu.edu.au)

Subjects: Optical, Supernovae

Referred to by ATel #: 8707, 8952

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) and superfit (Howell and Wang, 2002, BAAS, 34, 1256), 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) |        |      |        | 
DES15S2mpg |02:43:52.74|-01:13:45.4 |2015 Nov 12|  22.1   |2015 Dec 03|  0.186 |  Ia  |  max   |a 
DES15S2mpl |02:46:53.90|-01:09:52.4 |2015 Nov 12|  22.2   |2015 Dec 03|  0.257 |  Ia  |+1 week |a 
DES15S1lyi |02:48:51.28|-00:09:07.9 |2015 Oct 29|  22.6   |2015 Dec 03|  0.359 |  Ia? |+3 weeks|a 
DES15S1mjm |02:51:22.81|-00:38:54.5 |2015 Oct 31|  24.0   |2015 Dec 03|  0.26  |  Ia? |+1 week | 
 
a). Redshift from galaxy emission features