Tag Archives: astrophysical plasmas

Fluorescence and resonant ionization in astrophysical plasmas, with emphasis on and examples from the star Eta Carinae

Henrik Hartman (Lund Observatory, Lund University, Sweden) Following the initial detection by Bowen in 1934 of the strong O III lines being due to accidental resonance with strong He II radiation, many strong spectral emission lines are explained as produced by … Continue reading

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Atomic physics of shocked plasma in the winds of massive stars

Maurice Leutenegger (NASA/GSFC/CRESST/UMBC),  David Cohen (Swarthmore College), Stan Owocki (Bartol Research Institute) High resolution diffraction grating spectra of x-ray emission from massive stars obtained with Chandra and XMM-Newton have revolutionized our understanding of their powerful, radiation-driven winds. Emission line shapes and line ratios … Continue reading

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R-matrix calculations for electron impact excitation and modelling application for coronal plasmas

G Y Liang(1,2), N R Badnell(1), G Del Zanna(3), H E Mason(3), P J Storey(4), and G Zhao(2) (1)Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK. (2)National Astronomical Observatories, CAS, Beijing, 100012, China. (3)DAMTP, Centre for Mathematical Sciences, Cambridge, … Continue reading

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