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2014MNRAS.445.1567A - Mon. Not. R. Astron. Soc., 445, 1567-1574 (2014/December-1)

Stark broadening of CaIV spectral lines of astrophysical interest.

ALONSO-MEDINA A. and COLON C.

Abstract (from CDS):

Caiv emission lines are under the preview of Solar Ultraviolet Measurements of Emitted Radiation device aboard the Solar and Heliospheric Observatory. Also, lines of the Caiv in planetary nebulae NGC 7027 were detected with the Short Wavelength Spectrometer on board the Infrared Space Observatory. These facts justify an attempt to provide new spectroscopic parameters of Caiv. There are no theoretical or experimental Stark broadening data for Caiv. Using the Griem semi-empirical approach and the cowan code, we report in this paper calculated values of the Stark broadening parameters for 467 lines of Caiv. They were calculated using a set of wavefunctions obtained by using Hartree-Fock relativistic calculations. These lines arising from 3s23p4ns (n = 4, 5), 3s23p44p, 3s23p4nd (n = 3, 4) configurations. Stark widths and shifts are presented for an electron density of 1017/cm3 and temperatures T = 10 000, 20 000 and 50 200 K. As these data cannot be compared to others in the literature, we present an analysis of the different regularities of the values presented in this work.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): atomic data - atomic processes

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 3

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