HR: 1330h
AN: SA12A-1086    [PDF]
TI: Precision Measurement of the O II 732,733 nm Wavelengths from High Resolution Sky Spectra
AU: * Sharpee, B D
EM: brian.sharpee@sri.com
AF: Molecular Physics Laboratory, SRI International, Menlo Park, CA 94025 United States
AU: Slanger, T G
EM: tom.slanger@sri.com
AF: Molecular Physics Laboratory, SRI International, Menlo Park, CA 94025 United States
AU: Cosby, P C
EM: philip.cosby@sri.com
AF: Molecular Physics Laboratory, SRI International, Menlo Park, CA 94025 United States
AU: Huestis, D L
EM: david.huestis@sri.com
AF: Molecular Physics Laboratory, SRI International, Menlo Park, CA 94025 United States
AB: 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$^+$ 2p$^3$ $^2$P$_{1/2,3/2}$ - $^2$D$_{5/2}$ 732 nm and $^2$P$_{1/2,3/2}$ - $^2$D$_{3/2}$ 733 nm ionospheric emission line doublets. Specifically, the wavelength splittings of the 732 and 733 nm doublets are redetermined to be 0.1077 $\pm$ 0.0003 and 0.1080 $\pm$ 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.
DE: 0310 Airglow and aurora
DE: 0355 Thermosphere--composition and chemistry
DE: 2400 IONOSPHERE
SC: SPA - Aeronomy [SA]
MN: 2003 Fall Meeting