Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
? THEORETICAL STUDY OF THE STARK BROADENING FOR Mg IV SPECTRAL LINES OFASTROPHYSICAL INTEREST
Year:2016
Research Areas
  • Physics astrophysics - Cosmology,
  • Physics - Atomic and molecular physics
Information
Abstract
Emission lines of Mg IV have been detected in the Far Ultraviolet Spectroscopic Explorer (FUSE) spectrum of LS V +46º21 star and in the Space Telescope Imaging Spectrograph (STIS) spectrum of BD +28º4211 star. This fact justifies our interest in providing spectroscopic parameters of Mg IV. Stark broadening parameters for 169 spectral lines of Mg IV have been calculated by using the Griem semi-empirical approach. The matrix elements used in these calculations has been determined from 13 configurations of Mg IV: 2s12p6, 2s22p4ns (n=3-5), 2s22p4nd (n=3-5) and 2s22p45g for even parity and 2s22p5, 2s22p4np (n=3, 4) and 2s22p4nf (n=4, 5) for odd parity. Our calculations were made by using the Cowan code. Data are presented for an electron density of 1017 cm-3 and temperatures T=1.0-10.0 (104 K). Also we present calculated values of transition probabilities for 30 spectral lines and radiative lifetimes corresponding to its upper levels. These values were analyzed using the data found in the literature. Theoretical trends of the Stark broadening parameters versus the temperature for several lines of astrophysical interest are presented.
International
Si
JCR
Si
Title
Monthly Notices of the Royal Astronomical. Society
ISBN
0035-8711
Impact factor JCR
Impact info
Volume
462
10.1093/mnras/stw1955
Journal number
From page
4220
To page
4226
Month
AGOSTO
Ranking
Participants
  • Autor: Maria Isabel de Andres Garcia (UPM)
  • Autor: You Don Chaoyu . (UPM)
  • 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)