{
  "id": "1108.1043",
  "version": "v1",
  "published": "2011-08-04T10:51:16.000Z",
  "updated": "2011-08-04T10:51:16.000Z",
  "title": "Small-scale Hα Jets in the Solar Chromosphere",
  "authors": [
    "D. Kuridze",
    "M. Mathioudakis",
    "D. B. Jess",
    "S. Shelyag",
    "D. J. Christian",
    "F. P. Keenan",
    "K. S. Balasubramaniam"
  ],
  "comment": "5 pages, 5 figures, accepted in Astronomy and Astrophysics",
  "categories": [
    "astro-ph.SR"
  ],
  "abstract": "High temporal and spatial resolution observations from the Rapid Oscillations in the Solar Atmosphere (ROSA) multiwavelength imager on the Dunn Solar Telescope are used to study the velocities of small-scale H{\\alpha} jets in an emerging solar active region. The dataset comprises of simultaneous imaging in the H{\\alpha} core, Ca II K, and G band, together with photo- spheric line-of-sight magnetograms. Time-distance techniques are employed to determine projected plane-of-sky velocities. The H{\\alpha} images are highly dynamic in nature, with estimated jet velocities as high as 45 km s^{-1}. These jets are one-directional, with their origin seemingly linked to underlying Ca II K brightenings and G-band magnetic bright points. It is suggested that the siphon flow model of cool coronal loops is suitable for the interpretation of our observations. The jets are associated with small-scale explosive events, and may provide a mass outflow from the photosphere to the corona.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2011-08-04T10:51:16.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "solar chromosphere",
      "g-band magnetic bright points",
      "siphon flow model",
      "cool coronal loops",
      "spatial resolution observations"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1051/0004-6361/201117427",
      "journal": "Astronomy and Astrophysics",
      "year": 2011,
      "month": "Sep",
      "volume": 533
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 922239,
      "adsabs": "2011A&A...533A..76K"
    }
  }
}