Stark broadening of Ca IV spectral lines of astrophysical interest

Alonso Medina, Aurelia and Colón Hernández, Cristóbal (2014). Stark broadening of Ca IV spectral lines of astrophysical interest. "Monthly Notices of the Royal Astronomical Society", v. 445 (n. 2); pp. 1567-1574. ISSN 0035-8711. https://doi.org/10.1093/mnras/stu1855.

Description

Title: Stark broadening of Ca IV spectral lines of astrophysical interest
Author/s:
  • Alonso Medina, Aurelia
  • Colón Hernández, Cristóbal
Item Type: Article
Título de Revista/Publicación: Monthly Notices of the Royal Astronomical Society
Date: December 2014
ISSN: 0035-8711
Volume: 445
Subjects:
Freetext Keywords: Atomic data; Atomic processes
Faculty: E.T.S.I. Diseño Industrial (UPM)
Department: Ingeniería Eléctrica, Electrónica Automática y Física Aplicada
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (297kB) | Preview

Abstract

Ca IV emission lines are under the preview of Solar Ultraviolet Measurements of Emitted Radiation device aboard the Solar and Heliospheric Observatory. Also, lines of the Ca IV 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 Ca IV. There are no theoretical or experimental Stark broadening data for Ca IV. 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 Ca IV. 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 cmˉ³ 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.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainMAT2012-37782UnspecifiedUnspecifiedAnálisis integrado teórico-experimental de la técnica LSP aplicada a la mejora de propiedades mecánicas y superficiales de componentes metálicos de alta fiabilidad

More information

Item ID: 56604
DC Identifier: http://oa.upm.es/56604/
OAI Identifier: oai:oa.upm.es:56604
DOI: 10.1093/mnras/stu1855
Official URL: https://academic.oup.com/mnras/article/445/2/1567/2140653
Deposited by: Memoria Investigacion
Deposited on: 01 Oct 2019 08:01
Last Modified: 01 Oct 2019 08:01
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM