{
  "id": "1707.08515",
  "version": "v1",
  "published": "2017-07-26T16:03:53.000Z",
  "updated": "2017-07-26T16:03:53.000Z",
  "title": "Modeling The Most Luminous Supernova Associated with a Gamma-Ray Burst, SN 2011kl",
  "authors": [
    "Shan-Qin Wang",
    "Zach Cano",
    "Ling-Jun Wang",
    "Wei-Kang Zheng",
    "Zi-Gao Dai",
    "Alexei V. Filippenko",
    "Liang-Duan Liu"
  ],
  "comment": "9 pages, 2 figures, 1 table",
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "We study the most luminous known supernova (SN) associated with a gamma-ray burst (GRB), SN$\\sim$2011kl. The photospheric velocity of SN$\\sim$2011kl around peak brightness is $21,000\\pm7000$ km s$^{-1}$. Owing to different assumptions related to the light-curve (LC) evolution (broken or unbroken power-law function) of the optical afterglow of GRB$\\sim$111209A, different techniques for the LC decomposition, and different methods (with or without a near-infrared contribution), three groups derived three different bolometric LCs for SN$\\sim$2011kl. Previous studies have shown that the LCs without an early-time excess preferred a magnetar model, a magnetar+$^{56}$Ni model, or a white dwarf tidal disruption event model rather than the radioactive heating model. On the other hand, the LC shows an early-time excess and dip that cannot be reproduced by the aforementioned models, and hence the blue-supergiant model was proposed to explain it. Here, we reinvestigate the energy sources powering SN$\\sim$2011kl. We find that the two LCs without the early-time excess of SN$\\sim$2011kl can be explained by the magnetar+$^{56}$Ni model, and the LC showing the early excess can be explained by the magnetar+$^{56}$Ni model taking into account the cooling emission from the shock-heated envelope of the SN progenitor, demonstrating that this SN might primarily be powered by a nascent magnetar.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2017-07-26T16:03:53.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "gamma-ray burst",
      "sn 2011kl",
      "luminous supernova",
      "early-time excess",
      "ni model"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}