Abstract
We present SUMER observations of UV explosive events (EE) in a range which contains lines from about 750 to 790 Å. The strongest spectral lines of this range have temperatures of maximum abundances in the range 0.8 105 - 6.3 105 K and therefore are expected to be formed in the Transition Region (TR). The aim of this work is to investigate whether the EE originate in lines of a limited range of temperatures or indistinctly at lines of any temperature. We identified the times when the flux of a line attained the 3 and 5-σ levels. Moreover a considerably number of the events attained first a flux of 3 and 5-σ levels at a temperature of 1.5 105 K. We interpret the above results as an indication that most of the EE could be originated in the intermediate layers of the TR.
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© 2002 Springer Science+Business Media Dordrecht
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Torres-Papaqui, J.P., Mendoza, E. (2002). Heating the Quiet Corona by Explosive Events in UV: Results from “Sumer” on Board Soho. In: Chávez, M., Bressan, A., Buzzoni, A., Mayya, D. (eds) New Quests in Stellar Astrophysics: The Link Between Stars and Cosmology. Astrophysics and Space Science Library, vol 274. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0393-3_6
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DOI: https://doi.org/10.1007/978-94-010-0393-3_6
Publisher Name: Springer, Dordrecht
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