1. Mike Seaton, The One‐Perturber Approximation

$25.00 each

For purchase of this item, please read the instructions.

Volume 13: Pages 339-343, 2000

The OnePerturber Approximation

Mike Seaton

Chatsworth, Bwlch, Powys LD3 7RQ U.K.

The article describes recent work on damping of radiation from an atom due to collisions with a free electron as occurs in a thermal plasma. The code stgff has been added to the package of codes used in the work of the Opacity Project. It makes calculations for emission or absorption of radiation by a system of (atom + electron): freefree transitions and spectralline broadening in the oneperturber approximation. Some illustrative results are presented.

Keywords: freefree transitions, spectralline broadening, impact approximation, oneperturber approximation

Received: May 19, 2000; Published online: December 15, 2008