Local helioseismology and the active Sun
β Scribed by H. Schunker
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 77 KB
- Volume
- 331
- Category
- Article
- ISSN
- 0004-6337
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## Abstract Ring diagram analysis is an extension of global helioseismology that is applied to small areas on the Sun. It can be used to infer the horizontal components of large scale flows as well as the structure, and variations thereof, in the outer convection zone. We describe below the ringβdi
## Abstract Using helioseismic holography strong evidence is presented that the phase (or equivalent travelβtime) of helioseismic signatures in Dopplergrams within sunspots depend upon the lineβofβsight angle in the plane containing the magnetic field and vertical directions. This is shown for the