Classification of 5 DES supernovae by Magellan
ATel #8797; J. Lasker, R. Kessler, D. Scolnic (University of Chicago), 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, 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), 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, S. Prajs, M. Smith, M. Sullivan (University of Southampton)
on 9 Mar 2016; 19:55 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Mathew Smith (firstname.lastname@example.org)
Subjects: Optical, Supernovae
We report optical spectroscopy of 5 supernovae discovered by the Dark Energy Survey (ATel #4668). The spectra (580-1050nm) were obtained using LDSS-3C on the 6.5m Clay telescope at the Las Campanas Observatory. Object classification was performed using SNID (Blondin & Tonry, 2007, ApJ, 666, 1024) and superfit (Howell et al, 2005, ApJ, 634, 119), 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) | | | |
DES15E2so |00:35:30.61|-44:22:16.6 |2015 Aug 17| 24.1 |2016 Sep 07| 0.37 | Ia |+4 days |
DES15S2it |02:43:34.63|-01:31:06.1 |2015 Aug 13| 22.0 |2016 Sep 07| 0.36 | Ia |+20 days|
DES15S2og |02:46:54.05|-01:00:35.8 |2015 Aug 17| 22.9 |2016 Sep 07| 0.385 | Ia | max | a,b
DES15X2asp |02:23:14.24|-06:16:05.1 |2015 Aug 18| 23.1 |2016 Sep 07| 0.37 | Ia |+5 days |
DES15X2asq |02:24:26.78|-06:37:48.2 |2015 Aug 18| 22.8 |2016 Sep 07| 0.280 | Ia | max | a,c
a). Redshift from galaxy emission features
b). Previously classified as a SNIa? in ATEL #8367. Redshift matches that reported previously.
c). Previously classified as a SNIa in ATEL #8367. Redshift and classification matches that reported previously.