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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Space science reviews 70 (1994), S. 373-377 
    ISSN: 1572-9672
    Keywords: Solar corona ; Coronal holes ; Solar wind ; UV spectroscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Profiles of the visible Fe X (6374 Å) coronal emission line as a function of height above the limb were obtained out to 1.16 solar radii in a coronal hole using the NSO/Sacramento Peak Observatory Coronagraph, Universal Spectrograph and a CCD camera. These are the first coronal line profiles obtained as a function of height in a coronal hole from the ground. Analysis of the line widths suggests a large component of nonthermal broadening which increases with height ranging from 40 to 60 km/s, depending upon the assumed temperature or thermal component of the profile.
    Type of Medium: Electronic Resource
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