{
  "annotation_id": "1e8ba968-4796-4804-824e-17f7451e8fdb",
  "date_created": "2026-03-02T18:00:53.160000Z",
  "date_modified": "2026-03-02T18:00:53.160000Z",
  "file_hash": "f61697be411d3f2ecc48ddb278f23b78dd9b882955bb8a87ae902fff317eb7be",
  "private": false,
  "record": {
    "abstract": "The nonlinear amplitude modulation of known electrostatic plasma modes is\nexamined in a generic manner, by applying a collisionless fluid model. Both\ncold (zero-temperature) and warm fluid descriptions are discussed and the\nresults are compared. The moderately nonlinear oscillation regime is\ninvestigated by applying a multiple scale technique. The calculation leads to a\nNonlinear Schrodinger-type Equation (NLSE), which describes the evolution of\nthe slowly varying wave amplitude in time and space. The NLSE admits localized\nenvelope (solitary wave) solutions of bright- (pulses) or dark- (holes, voids)\ntype, whose characteristics (maximum amplitude, width) depend on intrinsic\nplasma parameters. Effects like amplitude perturbation obliqueness, finite\ntemperature and defect (dust) concetration are explicitly considered. The\nrelevance with similar highly localized modulated wave structures observed\nduring recent satellite missions is discussed.",
    "arxiv_id": "physics/0410100",
    "authors": [
      "Ioannis Kourakis",
      "Padma Kant Shukla"
    ],
    "categories": [
      "physics.plasm-ph"
    ],
    "title": "Modulated envelope localized wavepackets associated with electrostatic   plasma waves",
    "url": "https://arxiv.org/abs/physics/0410100"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0012c1c1-04c3-4b6d-a097-e22d187ee195",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}