Measured stark widths of several Sn I and Sn II spectral lines in a laser-induced plasma

Alonso Medina, Aurelia and Colón Hernández, Cristóbal (2008). Measured stark widths of several Sn I and Sn II spectral lines in a laser-induced plasma. "The Astrophysical Journal", v. 672 (n. 2); pp. 1286-1291. ISSN 0004-637X. https://doi.org/10.1086/523844.

Description

Title: Measured stark widths of several Sn I and Sn II spectral lines in a laser-induced plasma
Author/s:
  • Alonso Medina, Aurelia
  • Colón Hernández, Cristóbal
Item Type: Article
Título de Revista/Publicación: The Astrophysical Journal
Date: January 2008
ISSN: 0004-637X
Volume: 672
Subjects:
Freetext Keywords: Profiles; Plasmas; Stellar dynamics
Faculty: E.U.I.T. Industrial (UPM)
Department: Física Aplicada [hasta 2014]
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 (299kB) | Preview

Abstract

Data on Stark widths of spectral lines are of high interest for astrophysics and analytical techniques of stellar plasma diagnosis. Stark widths of 43 spectral lines of Sn I and 27 spectral lines of Sn II has been measured in a laser-induced plasma (LIP) at an electron temperature of 11,000 K and an electron density of 1.1x10¹⁶cm-³. The LIP optical emission spectroscopy generated by a 10640 Å radiation, with a flux of 1.4x10¹° W cm-² on several tin and lead targets in an atmosphere of argon was recorded at 2.5 µs and analyzed between 1890 and 7000 Å. The population level distribution and the corresponding temperatures were obtained using Boltzmann plots. The plasma electron densities were determined using well-known Stark broadening parameters of spectral lines. Special attention was dedicated to the possible self-absorption of the different transitions. The local thermodynamic equilibrium (LTE) conditions and plasma homogeneity have been checked. The experimental results obtained have been compared with the experimental and theoretical values given by other authors. The results obtained in this study will allow a substantial improvement in the interpretation of the data of the ultraviolet spectrum of the tin observed by the Goddard High Resolution Spectrograph aboard the Hubble Space Telescope. These atomic data are relevant to the analysis of the isotopic abundances of tin in stellar atmospheres.

Funding Projects

TypeCodeAcronymLeaderTitle
Universidad Politécnica de MadridCCG06-UPM/FI-229UnspecifiedUnspecifiedUnspecified
Madrid Regional GovernmentUnspecifiedIV PRICITUnspecifiedIV Plan Regional de Investigación Científica e Innovación Tecnológica

More information

Item ID: 56283
DC Identifier: http://oa.upm.es/56283/
OAI Identifier: oai:oa.upm.es:56283
DOI: 10.1086/523844
Official URL: https://iopscience.iop.org/article/10.1086/523844/meta
Deposited by: Memoria Investigacion
Deposited on: 04 Sep 2019 08:17
Last Modified: 20 Sep 2019 06:49
  • 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