2019MNRAS.487.2215A

Query : 2019MNRAS.487.2215A

2019MNRAS.487.2215A - Mon. Not. R. Astron. Soc., 487, 2215-2241 (2019/August-1)

Superluminous supernovae from the Dark Energy Survey.

ANGUS C.R., SMITH M., SULLIVAN M., INSERRA C., WISEMAN P., D'ANDREA C.B., THOMAS B.P., NICHOL R.C., GALBANY L., CHILDRESS M., ASOREY J., BROWN P.J., CASAS R., CASTANDER F.J., CURTIN C., FROHMAIER C., GLAZEBROOK K., GRUEN D., GUTIERREZ C., KESSLER R., KIM A.G., LIDMAN C., MACAULAY E., NUGENT P., PURSIAINEN M., SAKO M., SOARES-SANTOS M., THOMAS R.C., ABBOTT T.M.C., AVILA S., BERTIN E., BROOKS D., BUCKLEY-GEER E., BURKE D.L., CARNERO ROSELL A., CARRETERO J., DA COSTA L.N., DE VICENTE J., DESAI S., DIEHL H.T., DOEL P., EIFLER T.F., FLAUGHER B., FOSALBA P., FRIEMAN J., GARCIA-BELLIDO J., GRUENDL R.A., GSCHWEND J., HARTLEY W.G., HOLLOWOOD D.L., HONSCHEID K., HOYLE B., JAMES D.J., KUEHN K., KUROPATKIN N., LAHAV O., LIMA M., MAIA M.A.G., MARCH M., MARSHALL J.L., MENANTEAU F., MILLER C.J., MIQUEL R., OGANDO R.L.C., PLAZAS A.A., ROMER A.K., SANCHEZ E., SCHINDLER R., SCHUBNELL M., SOBREIRA F., SUCHYTA E., SWANSON M.E.C., TARLE G., THOMAS D., TUCKER D.L. (The DES Collaboration)

Abstract (from CDS):

We present a sample of 21 hydrogen-free superluminous supernovae (SLSNe-I) and one hydrogen-rich SLSN (SLSN-II) detected during the five-year Dark Energy Survey (DES). These SNe, located in the redshift range 0.220 < z < 1.998, represent the largest homogeneously selected sample of SLSN events at high redshift. We present the observed g, r, i, z light curves for these SNe, which we interpolate using Gaussian processes. The resulting light curves are analysed to determine the luminosity function of SLSNe-I, and their evolutionary time-scales. The DES SLSN-I sample significantly broadens the distribution of SLSN-I light-curve properties when combined with existing samples from the literature. We fit a magnetar model to our SLSNe, and find that this model alone is unable to replicate the behaviour of many of the bolometric light curves. We search the DES SLSN-I light curves for the presence of initial peaks prior to the main light-curve peak. Using a shock breakout model, our Monte Carlo search finds that 3 of our 14 events with pre-max data display such initial peaks. However, 10 events show no evidence for such peaks, in some cases down to an absolute magnitude of ←16, suggesting that such features are not ubiquitous to all SLSN-I events. We also identify a red pre-peak feature within the light curve of one SLSN, which is comparable to that observed within SN2018bsz.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): supernovae: general

Simbad objects: 26

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Number of rows : 26
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 DES17E1fgl SN* 00 32 09.62 -42 38 49.3           SLSN-II 3 0
2 DES14E2slp SN* 00 33 04.08 -44 11 42.8           SLSN-I 5 0
3 DES15E2mlf SN* 00 41 33.40 -43 27 17.2           SLSN 17 0
4 DES15X1noe SN* 02 14 41.93 -04 52 54.5           SLSN-I 11 0
5 DES17X1amf SN* 02 17 46.70 -05 36 01.0           SLSN-I 13 0
6 DES17X1blv SN* 02 20 59.64 -04 29 00.8           SLSN-I 8 0
7 DES14X2byo SN* 02 23 46.93 -06 08 12.3           SLSN-I 13 0
8 DES15X3hm SN* 02 26 54.96 -05 03 38.0           SLSN-I 12 0
9 DES14X3taz SN* 02 28 04.46 -04 05 12.7           SLSN-I 47 0
10 DES15S2nr SN* 02 40 44.62 -00 53 26.4           SLSN-I 14 0
11 SN 2013hy SN* 02 42 32.82 -01 21 30.1           SLSN-I 35 1
12 DES14S2qri SN* 02 43 32.14 -01 07 34.2           SLSN-I 12 0
13 DES15S1nog SN* 02 52 14.98 -00 44 36.3           SLSN-I 9 0
14 DES16C3cv SN* 03 27 16.71 -28 42 45.9           SLSN-I 12 0
15 DES17C3gyp SN* 03 27 51.87 -28 23 44.3           SLSN-I 9 0
16 DES16C3ggu SN* 03 31 12.00 -28 34 38.7           SLSN-I 10 0
17 DES16C3dmp SN* 03 31 28.35 -28 32 28.3           SLSN-I 11 0
18 DES15C3hav SN* 03 31 52.17 -28 15 09.5           SLSN-I 17 0
19 DES14C1fi SN* 03 33 49.80 -27 03 31.6           SLSN-I 10 0
20 DES14C1rhg SN* 03 38 07.27 -27 42 45.7           SLSN-I 13 0
21 DES16C2nm SN* 03 40 14.83 -29 05 53.5           SLSN-I 17 0
22 DES16C2aix SN* 03 40 41.17 -29 22 48.4           SLSN-I 9 0
23 iPTF 13ehe SN* 06 53 21.50 +67 07 56.0           SLSN-I 76 0
24 LSQ 14bdq SN* 10 01 41.60 -12 22 13.4           SLSN-I 70 0
25 ASASSN -15lh ev 22 02 15.4 -61 39 34           ~ 187 1
26 SN 2006oz SN* 22 08 53.56 +00 53 50.4           SLSN-I 90 1

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