{
  "id": "1907.08013",
  "version": "v1",
  "published": "2019-07-18T12:24:33.000Z",
  "updated": "2019-07-18T12:24:33.000Z",
  "title": "Wave heating in simulated multi-stranded coronal loops",
  "authors": [
    "Mingzhe Guo",
    "Tom Van Doorsselaere",
    "Konstantinos Karampelas",
    "Bo Li"
  ],
  "comment": "8 figures, accepted for publication in ApJ",
  "categories": [
    "astro-ph.SR"
  ],
  "abstract": "It has been found that the Kelvin-Helmholtz instability (KHI) induced by both transverse and torsional oscillations in coronal loops can reinforce the effects of wave heating. In this study, we model a coronal loop as a system of individual strands, and we study wave heating effects by considering a combined transverse and torsional driver at the loop footpoint. We deposit the same energy into the multi-stranded loop and an equivalent monolithic loop, and then observe a faster increase in the internal energy and temperature in the multi-stranded model. Therefore, the multi-stranded model is more efficient in starting the heating process. Moreover, higher temperature is observed near the footpoint in the multi-stranded loop and near the apex in the monolithic loop. The apparent heating location in the multi-stranded loop agrees with the previous predictions and observations. Given the differences in the results from our multi-stranded loop and monolithic loop simulations, and given that coronal loops are suggested to be multi-stranded on both theoretical and observational grounds, our results suggest that the multi-strandedness of coronal loops needs to be incorporated in future wave-based heating mechanisms.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2019-07-18T12:24:33.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "simulated multi-stranded coronal loops",
      "multi-stranded loop",
      "equivalent monolithic loop",
      "coronal loops needs",
      "multi-stranded model"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}