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Table · dataset · 2009

FTS reference UV wavelengths of CrIII

Listed in IVOA Registry (Virtual Observatory)

We report CrIII ultraviolet (UV) transition wavelengths measured using a high-resolution Fourier transform spectrometer (FTS), for the first time, available for use as wavelength standards.

Description

The doubly ionized iron group element spectra dominate the observed opacity of hot B stars in the UV, and improved, accurate, wavelengths are required for the analysis of astronomical spectra. The spectrum was excited using a chromium-neon Penning discharge lamp and measured with the Imperial College vacuum ultraviolet FTS. 140 classified 3d^3^4s-3d^3^4p CrIII transition lines, in the spectral range 38000 to 49000cm^-1^ (2632 to 2041{AA}), the strongest having wavelength uncertainties less than one part in 10^7^, are presented.

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Provenance · 1 source records, 7 field assertions
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IVOA Registry (Virtual Observatory)ivo://cds.vizier/j/mnras/390/73314 d agoJSON v1
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concepts[field].local:field:astronomymapping · IVOA Registryconnector:ivoa_registry@1.0.0
descriptionsource · IVOA Registryconnector:ivoa_registry@1.0.0rr.resource.res_description
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