Preprint

Jahr der Veröffentlichung: 2014

Zeitschrift: arXiv

DOI Link: https://doi.org/10.48550/arXiv.1406.1679

Verlag: Arxiv.org

Abstract: 

Rate coefficients for photorecombination (PR) and cross sections for electron-impact ionization (EII) of Fe    forming Fe    and Fe   , respectively, have been measured by employing the electron-ion merged-beams technique at a heavy-ion storage ring. Rate coefficients for PR and EII of Fe    ions in a plasma are derived from the experimental measurements. Simple parametrizations of the experimentally derived plasma rate coefficients are provided for use in the modeling of photoionized and collisionally ionized plasmas. In the temperature ranges where Fe    is expected to form in such plasmas the latest theoretical rate coefficients of Altun et al. [Astron. Astrophys. 474, 1051 (2007)] for PR and of Dere [Astron. Astrophys. 466, 771 (2007)] for EII agree with the experimental results to within the experimental uncertainties. Common features in the PR and EII resonance structures are identified and discussed.

Harvard-Zitierstil: Bernhardt, D., Becker, A., Grieser, M., Hahn, M., Krantz, C., Lestinsky, M., et al. (2014) Absolute rate coefficients for photorecombination and electron-impact ionization of magnesium-like iron ions from measurements at a heavy-ion storage ring [Preprint]. arXiv, Article 1406.1679. https://doi.org/10.48550/arXiv.1406.1679

APA-Zitierstil: Bernhardt, D., Becker, A., Grieser, M., Hahn, M., Krantz, C., Lestinsky, M., Novotný, O., Repnow, R., Savin, D., Spruck, K., Wolf, A., Müller, A., & Schippers, S. (2014). Absolute rate coefficients for photorecombination and electron-impact ionization of magnesium-like iron ions from measurements at a heavy-ion storage ring. arXiv. https://doi.org/10.48550/arXiv.1406.1679