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Author Archives: AstroAtom
Special Session EWASS 2018: Atomic and molecular data needs for astronomy and astrophysics
The aim of this session is to encourage further dialogue and promote knowledge transfer between astronomers with strong atomic and molecular data needs and those who produce this data from laboratory measurements and calculations. We hope this will foster new … Continue reading
Posted in meetings, Uncategorized
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The Opacity Project: computational methods
James Colgan Los Alamos National Laboratory, Los Alamos, NM 87545, USA This viewpoint relates to an article by K A Berrington et al (1987 J. Phys. B: At. Mol. Opt. Phys. 20 6379–97) and was published as part of a … Continue reading
Comment on “Large enhancement in high-energy photoionization of Fe XVII and missing continuum plasma opacity”
C. Blancard (1), J. Colgan (2), Ph. Cossé (1), G. Faussurier (1), C. J. Fontes (2), F. Gilleron (1), I. Golovkin (3), S. B. Hansen (4*), C. A. Iglesias (5), D. P. Kilcrease (2), J. J. MacFarlane (3), R.M. More … Continue reading
Posted in Atomic data applications, Uncategorized
Tagged Fe XVII, opacities, R-matrix
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Electron impact excitation of N IV: calculations with the DARC code and a comparison with ICFT results
K. M. Aggarwal (1), F. P. Keenan (1), K. D. Lawson (2) (1) Astrophysics Research Centre, School of Mathematics and Physics, Queen’s University Belfast, Belfast BT7 1NN, UK. (2) CCFE, Culham Science Centre, Abingdon OX14 3DB, UK. There have been … Continue reading
The primordial helium abundance and the number of neutrino families
Peimbert, A. (1), Peimbert, M. (1), and Luridiana, V. (2,3) (1) Instituto de Astronomía, Universidad Nacional Autónoma de México, México. (2) Instituto de Astrofísica de Canarias, Spain. (3) Departamento de Astrofísica, Universidad de La Laguna, Spain. Based on observations of … Continue reading
Posted in Atomic data applications, Uncategorized
Tagged Helium, primordial abundance
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Photoionization of Ar VIII
Liang Liang, Wen-xian Jiang, Chao Zhou Physics Department, Xi’an University of Architecture and Technology, Xi’an 710055, People’s Republic of China The photoionization cross section, energy levels and widths of 22 Rydberg series (in the autoionization region) for Na-like Ar VIII … Continue reading
Scaling of collision strengths for highly-excited states of ions of the H- and He-like sequences
L. Fernández-Menchero (1,2), G. Del Zanna (3), N. R. Badnell (1) (1) Department of Physics, University of Strathclyde. Glasgow G4 0NG, UK. (2) Department of Physics and Astronomy, Drake University, 2507 University Avenue. Des Moines, IA 50311, USA. (3) Department … Continue reading
Posted in Atomic data production
Tagged collision strengths, H-like ions, He-like ions
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Fine-structure electron-impact excitation of Ne+ and Ne2+ for low temperature astrophysical plasmas
Qianxia Wang (1), S. D. Loch (1), Y. Li (1), M. S. Pindzola (1), R. S. Cumbee (2), P. C. Stancil (2), B. M. McLaughlin (3), and C. P. Ballance (3) (1) Department of Physics, Auburn University, AL 36849, USA. … Continue reading
Posted in Atomic data production, Uncategorized
Tagged collision strengths, Ne+, Ne2+, R-matrix
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Energy levels and transition rates for helium-like ions with Z=10-36
R. Si (1,2,3), X.L. Guo (2,3), K. Wang (4), S. Li (5), J. Yan (5,6,7), C.Y. Chen (2,3), T. Brage (1), Y.M. Zou (2,3) (1) Division of Mathematical Physics, Department of Physics, Lund University, Box 118, SE-221 00 Lund, … Continue reading
