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AIP Conference ProceedingsVolume 938, 2007, Pages 164-1696th Serbian Conference on Spectral Line Shapes in Astrophysics, VI SCSLSA; Sremski Karlovci; Serbia; 11 June 2007 through 15 June 2007

Stark broadening of Cr II spectral lines in stellar atmospheres(Conference Paper)

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  • aAstronomical Observatory, Volgina 7, 11160 Belgrade, Serbia
  • bInstitute of Astronomy, Russian Academy of Science, Pyatnitskaya 48, 119017 Moscow, Russian Federation
  • cInstitute for Astronomy, University of Vienna, Türkenschanzstrasse 17, A-1180 Vienna, Austria

Abstract

We have calculated by using the semiclassical perturbation approach Stark broadening parameters for Cr II spectral lines and used the obtained results to investigate the influence of Stark broadening effect in stellar atmospheres. From our investigation we can conclude that newly calculated Stark widths for a number of strong Cr II lines agree with the scarce laboratory data and provide a good fit to the line profiles observed in Ap stars. New Stark parameters are particular important for the study of Cr stratification in Ap stars in 9000-10000 K temperature region, where this stratification may be obtained from the careful study of the line profiles of multiplet 3 Cr II lines only. © 2007 American Institute of Physics.

Author keywords

Atomic processesChemically peculiarLine profilesStars
  • ISSN: 0094243X
  • ISBN: 0735404496;978-073540449-6
  • Source Type: Conference Proceeding
  • Original language: English
  • DOI: 10.1063/1.2800122
  • Document Type: Conference Paper
  • Sponsors: Ministry of Science of Serbia,Institute Mihajlo Pupin,PORTAL,ITESON

  Dimitrijević, M.S.; Astronomical Observatory, Volgina 7, Serbia
© Copyright 2007 Elsevier B.V., All rights reserved.

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