| Issue |
A&A
Volume 409, Number 1, October I 2003
|
|
|---|---|---|
| Page(s) | 369 - 373 | |
| Section | Atomic, molecular, and nuclear data | |
| DOI | https://doi.org/10.1051/0004-6361:20031058 | |
| Published online | 17 November 2003 | |
Collisional depolarization and transfer rates of spectral lines by atomic hydrogen
II. Application to d states of neutral atoms
1
Observatoire de Paris-Meudon, LERMA UMR CNRS 8112, 5 place Jules Janssen, 92195 Meudon Cedex, France
2
Department of Astronomy and Space Physics, Uppsala University, Box 515, S 751 20 Uppsala, Sweden e-mail: Moncef.Derouich@obspm.fr
Corresponding author: M. Derouich, moncef.derouich@obspm.fr
Received:
28
April
2003
Accepted:
20
June
2003
The theory of collisional depolarization of spectral lines by atomic hydrogen
(Derouich et al. [CITE]) is extended to d 
atomic levels. Depolarization rates, polarization and population transfer rates are calculated and results are given as a function of the temperature. Cross sections as a function of the effective quantum
number for a relative velocity of 10 
are also given together with velocity exponents λ, if they exist, with the assumption that the cross section varies with velocity as 
. A discussion of our results is presented.
Key words: Sun: atmosphere / atomic processes / line: formation / polarization
© ESO, 2003
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