{
  "id": "1812.04071",
  "version": "v1",
  "published": "2018-12-10T20:35:15.000Z",
  "updated": "2018-12-10T20:35:15.000Z",
  "title": "Superluminous Supernovae from the Dark Energy Survey",
  "authors": [
    "C. R. Angus",
    "M. Smith",
    "M. Sullivan",
    "C. Inserra",
    "P. Wiseman",
    "C. B. D'Andrea",
    "B. P. Thomas",
    "R. C. Nichol",
    "J. Asorey",
    "P. J. Brown",
    "R. Casas",
    "F. J. Castander",
    "C. Curtin",
    "C. Frohmaier",
    "L. Galbany",
    "K. Glazebrook",
    "D. Gruen",
    "A. G. Kim",
    "C. Lidman",
    "E. Macaulay",
    "P. Nugent",
    "M. Pursiainen",
    "M. Sako",
    "R. C. Thomas",
    "T. M. C. Abbott",
    "S. Avila",
    "E. Bertin",
    "D. Brooks",
    "E. Buckley-Geer",
    "D. L. Burke",
    "A. Carnero Rosell",
    "J. Carretero",
    "L. N. da Costa",
    "J. De Vicente",
    "S. Desai",
    "H. T. Diehl",
    "P. Doel",
    "T. F. Eifler",
    "B. Flaugher",
    "P. Fosalba",
    "J. Frieman",
    "J. García-Bellido",
    "R. A. Gruendl",
    "J. Gschwend",
    "W. G. Hartley",
    "D. L. Hollowood",
    "K. Honscheid",
    "B. Hoyle",
    "D. J. James",
    "K. Kuehn",
    "N. Kuropatkin",
    "O. Lahav",
    "M. Lima",
    "M. A. G. Maia",
    "M. March",
    "J. L. Marshall",
    "F. Menanteau",
    "C. J. Miller",
    "R. Miquel",
    "R. L. C. Ogando",
    "A. A. Plazas",
    "A. K. Romer",
    "E. Sanchez",
    "R. Schindler",
    "M. Schubnell",
    "F. Sobreira",
    "E. Suchyta",
    "M. E. C. Swanson",
    "G. Tarle",
    "D. Thomas",
    "D. L. Tucker"
  ],
  "comment": "28 pages, 16 figures, submitted to MNRAS",
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "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 SLSN-I, and their evolutionary timescales. 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.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2018-12-10T20:35:15.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "superluminous supernovae",
      "monte carlo search finds",
      "five-year dark energy survey",
      "initial peaks",
      "slsn-i light curve properties"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 28,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}