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OzDES Spectroscopic Classification of 6 Supernovae From DES

ATel #6679; T. M. Davis (University of Queensland); F. Yuan, B. Zhang, R. Sharp, C. Wolf, M. Childress (Australian National University); C. Lidman (Australian Astronomical Observatory); M. Schubnell (University of Michigan); R. Kessler, D. Scolnic (University of Chicago); R. A. Covarrubias (University of Illinois / NCSA); R. C. Wolf, J. A. Fischer, J.-L. Fischer, L. Gladney, M. March, M. Sako (University of Pennsylvania); P. J. Brown, K. Krisciunas, N. Suntzeff (Texas A&M University); C. D'Andrea, R. Nichol, A. Papadopoulos (University of Portsmouth); 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); 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 (University of Illinois); F. J. Castander (ICE, IEEC/CSIC, Barcelona); S. Desai, K. Paech (Ludwig Maximilians University, Munich); R. C. Smith (NOAO/CTIO)
on 9 Nov 2014; 20:17 UT
Credential Certification: Chris D'Andrea (chris.dandrea@port.ac.uk)

Subjects: Optical, Supernovae

We report spectroscopic classification by OzDES of 6 supernovae discovered by the Dark Energy Survey. 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 superfit (Howell and Wang, 2002, BAAS, 34, 1256) and SNID (Blondin & Tonry, 2007, ApJ, 666, 1024), the details of which are reported in the table below.

 
 
Name       |RA (J2000) |Dec (J2000) |Disc.      |Disc.  |Spectrum   |Redshift|Type  |Phase |Notes  
           |           |            |Date (UT)  |Mag (r)|Date (UT)  |        |      |      |   
DES14C2gwx |03 33 35.18|-29 11 26.3 |2014 Oct 12|22.4   |2014 Oct 29|0.198   | Ia   |+2    |  
DES14C3cwp |03 27 10.88|-27 49 19.6 |2014 Sep 19|23.7   |2014 Oct 29|0.279   | Ia   |+17   |  
DES14C3foo |03 28 09.10|-27 31 58.5 |2014 Oct 01|23.1   |2014 Oct 29|0.338   | Ia   |+11   |   
DES14X1qt  |02 16 51.50|-04 09 15.2 |2014 Aug 20|21.7   |2014 Oct 30|0.139   | II   |>+62  |1  
DES14X2dm  |02 23 29.96|-06 38 16.1 |2014 Aug 17|20.6   |2014 Oct 28|0.196   | II   |>+60  |1 
DES14X3ftq |02 26 39.29|-04 58 14.7 |2014 Oct 05|23.4   |2014 Oct 28|0.35    | Ia   |+7    | 
 
1) Lower limit on phase relative to explosion, as the SN was visible in the first images of the DES season.