Meridional flow in the Sun’s convection zone is a single cell in each hemisphere
| Autor: | Robert H. Cameron, Damien Fournier, Aaron C. Birch, Zhi-Chao Liang, Laurent Gizon, Chris S. Hanson, Majid Pourabdian |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Sunspot
Multidisciplinary 010504 meteorology & atmospheric sciences Equator Geophysics 01 natural sciences Latitude Solar cycle Convection zone 13. Climate action Meridional flow 0103 physical sciences Helioseismology 010303 astronomy & astrophysics Geology 0105 earth and related environmental sciences Dynamo |
| Zdroj: | Science |
| ISSN: | 0036-8075 |
| DOI: | 10.1126/science.aaz7119 |
| Popis: | The flow of plasma inside the SunThe activity of the Sun, including the occurrence of sunspots, is driven by magnetic fields that originate from the motion of charged plasma beneath the surface. Helioseismology uses acoustic oscillations to probe the Sun's interior, analogous to seismology's use of earthquakes to investigate Earth's interior. Gizonet al.analyzed helioseismology data from 1996 to 2019, covering two 11-year solar cycles. They measured the latitudinal and radial flow of plasma as a function of depth within the Sun and how it varies with time. The results support magnetic flux-transport dynamo models, which can explain the distribution of sunspots over each solar cycle.Science, this issue p.1469 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|