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Can heavy ion storage rings contribute to our understanding of the charge state distributions in cosmic atomic plasmas?

D W Savin

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Interpreting cosmic spectra from ionized atomic gas hinges on our understanding the underlying physical processes which produce the observed spectra. Of particular importance are electron-ion recombination and electron impact ionization. These processes control the charge state distribution (CSD) of the gas. The CSD is intimately tied in to the observed spectral features and can also affect the thermal structure of the plasma. Heavy ion storage rings play a crucial role in improving our knowledge of electron-ion recombination and electron impact ionization, thereby deepening our understanding of the cosmos. Here we will review some of the astrophysical motivation behind laboratory astrophysics research with atomic ions at heavy ion storage rings. We also present some recent results, discuss some of the astrophysical implications, and present future astrophysical needs.


PACS

29.20.db Storage rings and colliders

95.30.Qd Magnetohydrodynamics and plasmas

95.30.Dr Atomic processes and interactions

52.20.Hv Atomic, molecular, ion, and heavy-particle collisions

Subjects

Atomic and molecular physics

Accelerators, beams and electromagnetism

Nuclear physics

Instrumentation and measurement

Plasma physics

Particle physics and field theory

Astrophysics and astroparticles

Dates

Issue 1 (2007)



  1. Can heavy ion storage rings contribute to our understanding of the charge state distributions in cosmic atomic plasmas?

    D W Savin 2007 J. Phys.: Conf. Ser. 88 012071

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