**
How to estimate intensity of dielectronic satellite lines
**

Intensity of a dielectronic satellite line can be calculated with
a following equation:

(photons cm^{3}s^{-1}),

where I_{H} is the ionization potential of hydrogen,
T_{e} is electron temperature,
g_{0} is the statistical weight of initial parent state
*i*_{0},
E_{i}^{S} is energy level of autoionizing state *i*
measured from initial state *i*_{0},
and Q_{d}(*i,j*) is intensity factor obtained as follows
with *g*_{i} statistical weight of autoionizing state *i*,
A^{a} autoionization rate,
and A^{r} radiative transition probability:

.
For the most cases, A^{a} is much larger than
A^{r} and then approximately Q_{d}
becomes

.
In the data set of this database,
Q_{d} and the wavelength are included as defualt, and
Es (E_{i}^{S} in the above equation) is
included in some cases.

Atomic and Molecular Data Research Center, National Institute for Fusion Science

* Last updated: Sep. 28, 2002 *

* web@dpc (+".nifs.ac.jp") *

*
Copyright (c) 2002-2006 National Institute for Fusion Science (NIFS).
All Rights Reserved.
*