Category Archives: Uncategorized

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

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Line Ratios for Solar Wind Charge Exchange with Comets

Mullen, P. D.; Cumbee, R. S.; Lyons, D.; Gu, L.; Kaastra, J.; Shelton, R. L.; Stancil, P. C. Charge exchange (CX) has emerged in X-ray emission modeling as a significant process that must be considered in many astrophysical environments—particularly comets. … Continue reading

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The impact of atomic data selection on nebular abundance determinations

Juan de Dios, Leticia; Rodríguez, Mónica Atomic data are an important source of systematic uncertainty in our determinations of nebular chemical abundances. However, we do not have good estimates of these uncertainties since it is very difficult to assess the … Continue reading

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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

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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

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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

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Hyperfine structure constants for singly ionized manganese (Mn II) using Fourier transform spectroscopy

Townley-Smith, Keeley; Nave, Gillian; Pickering, Juliet C.; Blackwell-Whitehead, Richard J. We expand on the comprehensive study of hyperfine structure (HFS) in Mn II conducted by Holt et al. (1999) by verifying hyperfine magnetic dipole constants (A) for 20 levels previously … Continue reading

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