DERIVATIONS OF $^{18}O$ ABUNDANCES IN COMETS USING THE ULTRAVIOLET BANDS OF $^{18}OH$

  • Kim, Sang-Joon (Department of Astronomy and Space Science, KyungHee University)
  • Published : 2000.12.01

Abstract

A fluorescent equilibrium model for the 1-0 band of the A-X system of ${18}^{OH}$ has been constructed. Line positions and intensities have been calculated for possible future spectroscopic observations of these bands from space in order to derive ${18}^{O}/{16}^{O}$ ratios in comets. It is demonstrated that the strong lines of the 1-0 band can be observable for a moderately bright comet using a high resolution spectrometer with a reasonable exposure time.

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References

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