✦ LIBER ✦

The formation of the CaiiK line in a spinning spicule

✍ Scribed by Lorne W. Avery

Publisher: Springer
Year: 1970
Tongue: English
Weight: 851 KB
Volume: 13
Category: Article
ISSN: 0038-0938
DOI: 10.1007/bf00153551

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✦ Synopsis

The emission of the CaII K line from a spinning cylindrical spicule model is considered. In order to reproduce the observed spicule K line profiles, the model must have both radial and axial gradients in Ne and Te. The rotating spicule model is optically thin at all heights and is hotter and more dense than a stationary model computed in a previous paper. It is proposed that the so-called Type I and Type II spicules may be structurally the same features, with different rotational velocities.

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