Tag Archives: astrophysics

Testing the effects of opacity and the chemical mixture on the excitation of pulsations in B stars of the Magellanic Clouds

S. Salmon (1), J. Montalbán (1), T. Morel (1),  A. Miglio (1, 2),  M-A. Dupret (1), A. Noels (1) ((1) Institut d’Astrophysique et de Géophysique de l’Université de Liège, Belgium; (2) School of Physics and Astronomy, University of Birmingham, UK) The B-type pulsators known as β Cephei and Slowly Pulsating … Continue reading

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Photoionization, Photoexcitation, and Astrophysical Opacities: The Iron Project

Sultana N. Nahar (Astronomy Dept., Ohio State University, Columbus, OH 4210, USA) Presentation Radiation transport through astrophysical plasmas is carried out by photon absorptions and emissions by the elements in the plasma and gives a measure of the plasma opacity. The … Continue reading

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Helium line emission – Its relation to atmospheric structure

Vincenzo Andretta (INAF – Osservatorio Astronomico di Capodimonte, Italy) The title of this talk reprises the title of a 1980 paper by Carole Jordan on the anomalously high intensities of helium lines when compared with lines of other ions formed … Continue reading

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Professor Dame Carole Jordan DBE, FRS, FInstP, … a remarkable career

Philip Judge (HAO, NCAR) With not a little trepidation, I will highlight aspects of the  career of my D. Phil. supervisor, colleague and friend, Carole Jordan. Along the way, I hope to convey a little of Carole’s integrity, high  ethical … Continue reading

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Atomic data for modeling K lines of interest in astrophysical plasmas

Patrick Palmeri (1), Pascal  Quinet (1,2), Claudio Mendoza (3), Manuel A. Bautista (4), Michael C. Witthoeft (5), Timothy R. Kallman (5) (1) Astrophysique et Spectroscopie, Université de Mons – UMONS, B-7000 Mons, Belgium. (2) IPNAS, Université de Liège, B15 Sart Tilman, B-4000 Liège, Belgium. (3) … Continue reading

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Calculation of atomic data for astrophysics and fusion

N. R. Badnell (Strathclyde University) We report on our work program for the calculation of atomic data for astrophysical and magnetic fusion diagnostic plasma modelling. We restrict ourselves to electron-impact excitation. We look at recent work with the R-matrix method, … Continue reading

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LABORATORY ASTROPHYSICS WHITE PAPER

Based on the 2010 NASA Laboratory Astrophysics Workshop in Gatlinburg, Tennessee, 25-28 October 2010. A pdf version may be downloaded from arXiv:1103.1341.  Report prepared by the Scientific Organizing Committee (SOC): Daniel Wolf Savin (Columbia University, SOC Chair), Lou Allamandola (NASA … Continue reading

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Workshop on uncertainties in atomic data and how they propagate in chemical abundances

 Claudio Mendoza (IVIC/CeCalCULA, Venezuela)   The workshop “Uncertainties in atomic data and how they propagate in chemical abundances” was held at the Instituto de Astrofísica de Canarias, Tenerife, Spain, during 25-27 October 2010.  The aim of the workshop was to bring together atomic … Continue reading

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Hello world!

Claudio Mendoza Welcome to AstroAtom, a forum for comments and discussion on the production of atomic data and their astrophysical applications. This initiative was born during the workshop “Uncertainties in atomic data and how they propagate in chemical abundances” held at the … Continue reading

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