Accurate Wavenumbers for Mid-Infrared Fine-Structure Lines

Details Accurate Wavenumbers for Mid-Infrared Fine-Structure Lines Accurate Wavenumbers for Mid-Infrared Fine-Structure Lines

1995-09-13

arxiv.org/abs/astro-ph/9509071v1

Astronomy and Astrophysics

Astrophysics

12 pages text, 2 postscript figures, uses AASTeX macros, figures are gzipped and uuencoded

Scientific paper

10.1086/309795

We present accurate new wavenumbers for a set of 13 mid-infrared fine-structure lines. The wavenumbers were determined from observations of the planetary nebula NGC 7027 and of the red supergiant Alpha Scorpii. Most of the new wavenumbers are good to within 0.0025%, or 8 km/s. We provide details on the measurements and present an analysis of the errors. In addition, we present the first observations of hyperfine splitting in the [Na IV] 1106 cm-1 line.

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