Precision Measurement of the O II 732,733 nm Wavelengths from High Resolution Sky Spectra

Details Precision Measurement of the O II 732,733 nm Wavelengths from High Resolution Sky Spectra Precision Measurement of the O II 732,733 nm Wavelengths from High Resolution Sky Spectra

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufmsa12a1086s&link_type=abstract

American Geophysical Union, Fall Meeting 2003, abstract #SA12A-1086

Astronomy and Astrophysics

Astrophysics

0310 Airglow And Aurora, 0355 Thermosphere: Composition And Chemistry, 2400 Ionosphere

Scientific paper

We present new measurements from high resolution sky spectra taken with the Keck I HIRES spectrograph of the wavelength splittings and intensity ratios between the components of the O+ 2p3 2P1/2,3/2 - 2D5/2 732 nm and 2P1/2,3/2 - 2D3/2 733 nm ionospheric emission line doublets. Specifically, the wavelength splittings of the 732 and 733 nm doublets are redetermined to be 0.1077 +/- 0.0003 and 0.1080 +/- 0.0003 nm, respectively. This determination represents a slight improvement in precision over previous astrophysical values. However, a number of atmospheric scientists have incorrectly used a much older value of about 0.08 nm in previous Fabry-Perot observational campaigns.

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