{
  "id": "2206.14188",
  "version": "v1",
  "published": "2022-06-28T17:53:00.000Z",
  "updated": "2022-06-28T17:53:00.000Z",
  "title": "Radiative Magnetohydrodynamic Simulation of the Confined Eruption of a Magnetic Flux Rope: Magnetic Structure and Plasma Thermodynamics",
  "authors": [
    "Can Wang",
    "Feng Chen",
    "Mingde Ding",
    "Zekun Lu"
  ],
  "comment": "Accepted for publication in ApJ Letters",
  "categories": [
    "astro-ph.SR"
  ],
  "abstract": "It is widely believed that magnetic flux ropes are the key structure of solar eruptions; however, their observable counterparts are not clear yet. We study a flare associated with flux rope eruption in a comprehensive radiative magnetohydrodynamic simulation of flare-productive active regions, especially focusing on the thermodynamic properties of the plasma involved in the eruption and their relation to the magnetic flux rope. The pre-existing flux rope, which carries cold and dense plasma, rises quasi-statically before the eruption onsets. During this stage, the flux rope does not show obvious signatures in extreme ultraviolet (EUV) emission. After the flare onset, a thin `current shell' is generated around the erupting flux rope. Moreover, a current sheet is formed under the flux rope, where two groups of magnetic arcades reconnect and create a group of post-flare loops. The plasma within the `current shell', current sheet, and post-flare loops are heated to more than 10 MK. The post-flare loops give rise to abundant soft X-ray emission. Meanwhile a majority of the plasma hosted in the flux rope is heated to around 1 MK, and the main body of the flux rope is manifested as a bright arch in cooler EUV passbands such as AIA 171 \\AA~channel.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-06-28T17:53:00.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "magnetic flux rope",
      "radiative magnetohydrodynamic simulation",
      "magnetic structure",
      "plasma thermodynamics",
      "confined eruption"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}