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Spectroscopic Classification of DES14S2boa with GTC

ATel #6549; F. J. Castander, R. Casas (ICE, IEEC/CSIC, Barcelona); D. Garcia-Alvarez (SA) and D. Perez-Valladares (GTC operations, IAC); R. Miquel (IFAE, Barcelona); G. Aldering, J. S. Bloom, A. G. Kim, R. C. Thomas (Lawrence Berkeley National Laboratory); K. Barbary, D. Goldstein, P. Nugent, S. Perlmutter (Lawrence Berkeley National Laboratory + University of California, Berkeley); R. J. Foley (University of Illinois); S. Desai, K. Paech (Ludwig Maximilians University, Munich); R. C. Smith (NOAO/CTIO); 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);
on 7 Oct 2014; 16:03 UT
Credential Certification: Chris D'Andrea (chris.dandrea@port.ac.uk)

Subjects: Optical, Supernovae

We report optical spectroscopy and classification of DES14S2boa, discovered by the Dark Energy Survey (ATel #4668). The spectrum (490-940 nm) was obtained using OSIRIS on the Gran Telescopio CANARIAS (GTC) as part of proposal GTC70/14B (PI F. Castander). Classification was performed using SNID (Blondin & Tonry, 2007, ApJ, 666, 1024), and identifies DES14S2boa as a Type Ia supernova approximately at peak.

Name       | RA (J2000)  | Dec (J2000) | Discovery Date (UT) | Discovery r Mag | Spectrum Date (UT) | Redshift | Type    | Phase | Notes | 
DES14S2boa | 02 44 19.15 | -00 27 01.3 | 2014 Sep 14         | 22.2            | 2014 Sep 28        | 0.398    | Type Ia | ~ -2d |       |