Vorontsov S V, Christensen-Dalsgaard J, Schou J, Strakhov V N, Thompson M J
Astronomy Unit, Queen Mary, University of London, Mile End Road, London E1 4NS, UK.
Science. 2002 Apr 5;296(5565):101-3. doi: 10.1126/science.1069190.
Bands of slower and faster rotation, the so-called torsional oscillations, are observed at the Sun's surface to migrate in latitude over the 11-year solar cycle. Here, we report on the temporal variations of the Sun's internal rotation from solar p-mode frequencies obtained over nearly 6 years by the Michelson Doppler Imager (MDI) instrument on board the Solar and Heliospheric Observatory (SOHO) satellite. The entire solar convective envelope appears to be involved in the torsional oscillations, with phase propagating poleward and equatorward from midlatitudes at all depths throughout the convective envelope.
在太阳表面观测到旋转速度较慢和较快的条带，即所谓的扭转振荡，它们在11年的太阳周期内会在纬度上迁移。在此，我们根据太阳和日球层天文台（SOHO）卫星上的迈克耳孙多普勒成像仪（MDI）仪器在近6年时间里获得的太阳p模频率，报告太阳内部自转的时间变化。整个太阳对流包层似乎都参与了扭转振荡，在对流包层的所有深度，相位从中纬度向极区和赤道区传播。
