The infrared spectrum of uranium hollow cathode lamps from 850 nm to 4000 nm: Wavenumbers and line identifications from fourier transform spectra

Stephen L. Redman, James E. Lawler, Gillian Nave, Lawrence W. Ramsey, Suvrath Mahadevan

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48 Scopus citations

Abstract

We provide new measurements of wavenumbers and line identifications of 10, 100 U I and U II near-infrared (NIR) emission lines between 2500cm-1 and 12, 000cm-1 (4000-850 nm) using archival Fourier transform spectrometer spectra from the National Solar Observatory. This line list includes isolated uranium lines in the Y, J, H, K, and L bands (0.9-1.1 μm, 1.2-1.35 μm, 1.5-1.65 μm, 2.0-2.4 μm, and 3.0-4.0 μm, respectively), and provides six times as many calibration lines as thorium in the NIR spectral range. The line lists we provide enable inexpensive, commercially available uranium hollow cathode lamps to be used for high-precision wavelength calibration of existing and future high-resolution NIR spectrographs.

Original languageEnglish (US)
Article number24
JournalAstrophysical Journal, Supplement Series
Volume195
Issue number2
DOIs
StatePublished - Aug 2011

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

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