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Study of possible subsurface influences on the emerging active regions

✍ Scribed by T. Baranyi; A. Ludmány

Book ID
104648525
Publisher
Springer
Year
1992
Tongue
English
Weight
454 KB
Volume
139
Category
Article
ISSN
0038-0938

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✦ Synopsis

The large-scale distribution of the orientations of emerging sunspot groups has been studied for the year 1977. It is probable that the declinations from the azimuthal directions are not entirely randomly scattered, but they can be governed also by subsurface velocity fields. If this assumption is correct, the most probable internal velocity distribution is a non-axisymmetric (columnar) giant convection pattern with a longitudinal wave number l = 11 rotating slightly slower than the Carrington system, on the basis of the given material.

📜 SIMILAR VOLUMES

On the initial orientation of emerging a
On the initial orientation of emerging active regions
✍ J. I. García Rosa 📂 Article 📅 1986 🏛 Springer 🌐 English ⚖ 627 KB

The initial orientation of 74 active regions is measured in high resolution pictures. As previous works by the author (Garcla de la Rosa, 1984) suggest a different behaviour between large and small active regions, the sample has been divided into those two classes, whose dividing line is roughly set