E. Antonucci et al., XUV LINES EMITTED FROM PLASMA ACCELERATED DURING MAGNETIC RECONNECTION, Nuovo cimento della Societa italiana di fisica. D, Condensed matter,atomic, molecular and chemical physics, biophysics, 17(10), 1995, pp. 1149-1153
We compute the intensity of the emission in the O VI, Mg X, Si XII, Fe
XIII, Fe XVI transitions and the profiles of these spectral lines for
a plasma flowing out of reconnecting current sheets that originate in
the active region corona either during transient brightenings or in p
reflare conditions. The characteristic of these lines is a significant
non-thermal broadening consistent with plasma non-thermal velocities
of the order of 300 km s(-1). Hence, it is possible to infer the occur
rence of magnetic reconnection in the solar corona by investigating th
e broadening of transition region and coronal lines in the sites where
reconnection is presumed to take place.