Plasma Waves in the Sun

Abstract

Plasma waves are observed in almost all the solar system objects such as planets, their satellites, comets, interplanetary medium (IPM) and Sun. In most of these solar system plasma environments, the typical plasma density has a range between 103 - 106 cm-3 and plasma temperature of about 0.1 eV which is capable of sustaining some plasma waves of the complete wave spectrum. In IPM, some natural plasma modes are observed whose origin is believed to be near the Sun. The plasma in solar core and in corona itself support and sustain a number of electrostatic (ES) and electromagnetic (EM) plasma waves. The solar plasma waves carry energy away from the Sun to far-off places as well as incite particle transport from the solar core to interplanetary space. These waves also provide information on energy distribution in solar plasma. This paper revisits the plasma waves coming from Sun towards Earth in the form of a brief review.