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Relativistic Free-free Gaunt Factor of the Dense High-Temperature Stellar Plasma

Published online by Cambridge University Press:  12 April 2016

Naoki Itoh ,
Masayuki Nakagawa  and
Yasuharu Kohyama
Naoki Itoh
Affiliation:
Department of Physics, Sophia University, Tokyo, Japan
Masayuki Nakagawa
Affiliation:
Department of Physics, Sophia University, Tokyo, Japan
Yasuharu Kohyama
Affiliation:
Department of Physics, Sophia University, Tokyo, Japan

Abstract

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The free-free Gaunt factor of the dense high-temperature stellar plasma is calculated by using the accurate relativistic cross section, and is compared with the Gaunt factor derived by using Sommerfeld’s exact nonrelativistic cross section. A wide range of electron degeneracy is accurately taken into account. Significant deviations from the nonrelativistic relsults are found for high-temperature cases.

Type
1. X-rays from a Hot Plasma
Information
International Astronomical Union Colloquium , Volume 115: High Resolution X-ray Spectroscopy of Cosmic Plasmas , 1990 , pp. 32 - 35
Copyright
Copyright © Cambridge University Press 1990

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