Discovery and Classification of 8 SNe from the Dark Energy Survey
ATel #6515; M. Smith, M. Sullivan (University of Southampton), A. Mehner, I. Aranda (ESO), 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, 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), 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, 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)
on 29 Sep 2014; 18:06 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Mathew Smith (matsmith2@gmail.com)
Subjects: Optical, Supernovae
Referred to by ATel #: 6520
We report optical spectroscopy and classification of 8 supernovae discovered by the Dark Energy Survey (ATel #4668). The spectra (380-950 nm) were obtained using the X-SHOOTER instrument on the Very Large Telescope (VLT) of the European Southern Observatory (ESO) under program 093.A-0749 (PI M. Sullivan). 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) | Discovery Date (UT) | Discovery r Mag | Spectrum Date (UT) | redshift | Type | Phase | Notes |
DES14C1eu | 03:38:53.58 | -27:54:18.1 | 2014 Aug 17 | 22.2 | 2014 Aug 30 | 0.39 | Type Ia | peak | |
DES14C3nj | 03:34:03.05 | -28:19:05.4 | 2014 Aug 15 | 23.8 | 2014 Aug 31 | 0.45 | Type Ia | -5 days | a |
DES14E1gw | 00:26:45.80 | -43:26:02.5 | 2014 Aug 07 | 22.0 | 2014 Aug 31 | 0.4533 | Type Ia | +22 days | b |
DES14E2u | 00:37:51.13 | -43:43:17.2 | 2014 Aug 17 | 23.0 | 2014 Aug 31 | 0.2923 | Type Ia | peak | b |
DES14E2ag | 00:39:22.19 | -44:04:03.4 | 2014 Aug 17 | 21.2 | 2014 Sep 01 | 0.2263 | Type Ic | +20 days | b |
DES14E2am | 00:39:57.94 | -44:52:30.9 | 2014 Aug 17 | 22.5 | 2014 Aug 30 | 0.2470 | Type II? | peak | b,c |
DES14S2qg | 02:42:21.44 | -01:21:42.9 | 2014 Aug 20 | 19.7 | 2014 Aug 31 | 0.11 | Type Ia | +30 days | |
DES14X2dl | 02:22:44.29 | -06:03:48.9 | 2014 Aug 17 | 22.5 | 2014 Aug 30 | 0.44 | Type Ia | +9 days | |
a) Good match to 99aa.
b) Redshift from galaxy emission features.
c) Some superfit matches to a Ib at t+14 days.
