Okamoto T J, Tsuneta S, Berger T E, Ichimoto K, Katsukawa Y, Lites B W, Nagata S, Shibata K, Shimizu T, Shine R A, Suematsu Y, Tarbell T D, Title A M
National Astronomical Observatory (NAOJ), Mitaka, Tokyo 181-8588, Japan.
Science. 2007 Dec 7;318(5856):1577-80. doi: 10.1126/science.1145447.
Solar prominences are cool 10(4) kelvin plasma clouds supported in the surrounding 10(6) kelvin coronal plasma by as-yet-undetermined mechanisms. Observations from Hinode show fine-scale threadlike structures oscillating in the plane of the sky with periods of several minutes. We suggest that these represent Alfvén waves propagating on coronal magnetic field lines and that these may play a role in heating the corona.
日珥是温度为10⁴开尔文的冷等离子体云，由尚未确定的机制支撑在周围温度为10⁶开尔文的日冕等离子体中。来自“日之出”卫星的观测显示，精细尺度的丝状结构在天空平面内以几分钟的周期振荡。我们认为，这些代表了在日冕磁力线上传播的阿尔文波，并且这些波可能在加热日冕中发挥作用。
