Open AccessExperimental stark widths and shifts of V II spectral lines
Author(s) -
J. Manrique,
Diego M. Díaz Pace,
C. Aragón,
J.A. Aguilera
Publication year - 2020
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-8711
pISSN - 0035-8711
DOI - 10.1093/mnras/staa2000
Subject(s) - physics , stark effect , spectral line , atomic physics , wavelength , electron density , resonance (particle physics) , absorption spectroscopy , plasma , boron , absorption (acoustics) , electron temperature , optics , nuclear physics , astronomy
We have measured the Stark widths and shifts of V II spectral lines in the wavelength range 2000–4200 Å belonging to 75 multiplets. The spectra are emitted by laser-induced plasmas generated from fused glass discs prepared by borate fusion. The electron density and temperature are in the ranges (0.72–6.5) × 1017 cm−3 and (11 000–14 900) K, respectively. To avoid self-absorption, we have used seven samples with vanadium concentrations selected by the CSigma graph methodology. This has allowed to include strong and weak lines in the study, including resonance and forbidden lines. The experimental widths and shifts are compared with theoretical values available in the literature.
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