Astron. Astrophys. 347, 401-408 (1999)

Radiative losses of optically thin coronal plasmas

E. Landi and M. Landini

Department of Astronomy and Space Science, University of Florence, Italy

Received 9 March 1999 / Accepted 6 May 1999

Abstract

In the present work the total radiative losses and the total emissivity curve are calculated for an optically thin plasma using the Arcetri Spectral Code in the temperature range. Checks have been made on the effects of changes in the parameters involved in the calculations, such as element abundances, ion fractions, electron density and transition probabilities on the resulting curves. Parametric fits are given for the resulting radiative losses curves and comparison is made with previous results.

Key words: plasmas radiation mechanisms: non-thermal

Send offprint requests to: E.Landi (enricol@arcetri.astro.it)

This article contains no SIMBAD objects.

Contents

• 1. Introduction
• 2. Theoretical calculations
• 3. Results
  • 3.1. Effect of the electron density
  • 3.2. Effect of different datasets and approximations in level population computation
  • 3.3. Effect of ionization equilibrium
  • 3.4. Effect of element abundances
• 4. Parametric fit of the results
• 5. Discussion and conclusions
• Acknowledgements
• References

© European Southern Observatory (ESO) 1999

Online publication: June 18, 1999
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