Solar transient events and their importance for coronal heating

Area of Science:

• Solar Physics
• Plasma Astrophysics
• Heliophysics

Background:

• High-resolution solar observations from spacecraft and ground-based telescopes have increased over the past decade.
• Numerous small-scale dynamic events have been observed across the Sun's chromosphere, transition region, and corona.
• These events exhibit diverse properties due to observations from various instruments.

Purpose of the Study:

• To review observed transient features in the solar atmosphere.
• To explore the role of small-scale dynamic events in solar plasma heating and acceleration.
• To discuss the implications of these events for the Sun's upper atmosphere and solar wind mass/energy balance.

Main Methods:

• Review of observational data from multiple spacecraft and ground-based solar telescopes.
• Analysis of characteristics of small-scale dynamic events.
• Synthesis of current understanding of solar plasma heating mechanisms.

Main Results:

• A wealth of observations of small-scale dynamic events has been collected.
• These events are often linked to magnetic reconnection and wave phenomena.
• There is a growing consensus on the importance of these events for solar atmospheric dynamics.

Conclusions:

• Small-scale dynamic events are crucial for understanding solar plasma acceleration and heating.
• These phenomena likely play a significant role in the mass and energy balance of the solar atmosphere and solar wind.
• Continued study of these transient features is essential for advancing solar physics.