Coronal Mass Ejections (CME)

Coronal Mass Ejections (CME)

Scientists tracking the continuous evolution of the energy state of the center of a solar outburst that occurred on July 20, 2017 have found that it strangely maintains a constant temperature.

  • Coronal mass ejections (CMEs) are massive explosions of charged particles (plasma), and magnetic fields, from the solar atmosphere into space.
  • They can disrupt ground stations on Earth and a range of space-based communication technologies and satellites.

Coronal Mass Ejections:

  • Coronal mass ejections (CMEs) are massive eruptions of charged particles (plasma) and magnetic fields from the solar atmosphere into space. They can disrupt a range of geostationary and space-based technologies and satellites on Earth.
  • The evolution of the thermodynamic properties of CMEs, such as temperature and density, is important for understanding their effects on Earth’s circulatory systems.
  • There is a wide range of plasma temperatures within CMEs, from cold chromospheric material (about 104 K) to hot plasmas (about 107 K).
  • CMEs can exchange energy (potential, electrical, kinetic, thermal, and so on) through a number of processes, which can heat or cool the plasma. Understanding CMEs will aid our ability to monitor space weather.

India’s Solar Mission:

The Visible Emission Line Coronagraph on Aditya-L1, India’s first solar mission, will perform both spectroscopy and imaging of CMEs in the inner corona, and provide new insights into the evolution of CME thermodynamic properties in the inner corona.

Source – Hindustan Times

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