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On mass flow in a complex sunspot
Authors:H I Abdussamatov
Institution:(1) Pulkovo Observatory, 196140 Leningrad, U.S.S.R.
Abstract:The velocity field in a large complex sunspot is investigated in Fe i lambda 6302.5 Å and in Hagr with a spatial resolution of about 2.5Prime. The Evershed flow is almost parallel to the solar surface. For the inclination angle theta between the velocity and the horizontal theta = 4.4°±1.3° is estimated; theta = 11° is the definite upper limit.
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