Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
STARK BROADENING OF Sn III SPECTRAL LINES OF ASTROPHYSICAL INTEREST: PREDICTIONS AND REGULARITIES
Year:2011
Research Areas
  • Physics - Atomic and molecular physics
Information
Abstract
The determination of the Stark broadening parameters of Sn ions is useful for astrophysicists interested in the determination of the density of electrons in stellar atmospheres. In this paper, we report on the calculated values of the Stark broadening parameters for 171 lines of Sn III arising from 4d105sns (n = 6?9), 4d105snp (n = 5, 6), 4d105p2, 4d105snd (n = 5?7), 4d105s4f and 4d105s5g. Stark linewidths and line shifts are presented for an electron density of 1023 m?3 and temperatures T = 11 000?75 000 K. These have been calculated using a semi-empirical approach, with a set of wavefunctions obtained from Hartree?Fock relativistic calculations, including core polarization effects. The results obtained have been compared with available experimental data. These can be used to consider the influence of Stark broadening effects in A-type stellar atmospheres.
International
Si
JCR
Si
Title
Mon. Not. Roy. Astron. Soc
ISBN
0035-8711
Impact factor JCR
4,888
Impact info
Volume
414
10.1111/j.1365-2966.2011.18438x
Journal number
1
From page
713
To page
726
Month
JUNIO
Ranking
Participants
  • Autor: Aurelia Alonso Medina (UPM)
  • Autor: Cristobal Colon Hernandez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Caracterización óptica de materiales
  • Departamento: 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)