The Nature of Microturbulence in the Solar Photosphere
Open Access
- 1 January 1974
- journal article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 166 (1) , 219-233
- https://doi.org/10.1093/mnras/166.1.219
Abstract
This paper contains two main results: (i) The apparent centre-limb increase of Doppler width in the cores of the sodium D lines is not caused by the frequency dependence of the lines source function. (ii) The increase in Doppler width in these lines as we approach the limb is probably due to the inhomogeneous structure of the upper photosphereKeywords
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