Monthly Archives: January 2012

Comparison of Fe and Ni opacity calculations for a better understanding of pulsating stellar envelopes

D. Gilles (a), S. Turck-Chièze (a), G. Loisel (a), L. Piau (a), J.-E. Ducret (a), M. Poirier (b), T. Blenski (b), F. Thais (b), C. Blancard (c), P. Cossé (c), G. Faussurier (c), F. Gilleron (c), J.C. Pain (c), Q. … Continue reading

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Iron and nickel spectral opacity calculations in conditions relevant for pulsating stellar envelopes and experiments

D. Gilles (1), S. Turck-Chièze (1), M. Busquet (2), F. Thais (3), G. Loisel (4), L. Piau (1), J.E. Ducret (1), T. Blenski (3), C. Blancard (5), P. Cossé (5), G. Faussurier, F. Gilleron (5), J.C. Pain (5), Q. Porcherot (5), J.A. … Continue reading

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New OPAS opacities for a solar mixture

Claudio Mendoza (IVIC/CeCalCULA, Venezuela) In the recent paper  “Solar mixture opacity calculations using detailed configuration and level accounting treatments” by Christophe Blancard (1, 2),  Philippe Cossé (1)  & Gérald Faussurier (1) ((1) CEA, DAM, DIF, F-91297 Arpajon, France;  (2) Observatoire de Paris, … Continue reading

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Estimating turbulent velocities in the elliptical galaxies NGC 5044 and NGC 5813

J. de Plaa (1), I. Zhuravleva (2), N. Werner (3), J. S. Kaastra (1, 4), E. Churazov (2, 5), R. K. Smith (6), A. J. J. Raassen (1), and Y. G. Grange (1) (1) SRON Netherlands Institute for Space Research, … Continue reading

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Electron impact excitation of H-like, He-like and Li-like ions with Z ≤ 30

K. M. Aggarwal and F. P. Keenan (Astrophysics Research Centre, School of Mathematics and Physics, Queen’s University, Belfast BT7 1NN, Northern Ireland, UK) Atomic data, namely energy levels, radiative rates (A-values), and excitation rates or equivalently the effective collision strengths … Continue reading

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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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Data-intensive profile for the VAMDC

C. Mendoza (1,2) and VAMDC Collaboration ((1)Centro de Física, IVIC,  Caracas; (2) CeCalCULA, CPTM, Mérida, Venezuela). Preprint Atomic and molecular (A&M) data are required in a wide variety of scientific fields (astrophysics, fusion plasmas, atmospheric physics and chemistry, environmental studies and … Continue reading

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