Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Stark broadening of Ca IV spectral lines of astrophysical interest
Year:2014
Research Areas
  • Physics - Atomic and molecular physics
Information
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 cm?3 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.
International
Si
JCR
Si
Title
Monthly Notices of the Royal Astronomical Society
ISBN
0035-8711
Impact factor JCR
5,521
Impact info
Datos JCR del año 2012
Volume
445
10.1093/mnras/stu1855
Journal number
445
From page
1567
To page
1574
Month
OCTUBRE
Ranking
Participants
  • Autor: Aurelia Alonso Medina (UPM)
  • Autor: Cristobal Colon Hernandez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Análisis y Caracterización Óptica de Materiales
  • Departamento: Ingeniería Eléctrica, Electrónica Automática y Física Aplicada
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)