An emission spectrum of hot water with a temperature of about 3000 K is obtained using an oxy-acetylene torch. This spectrum contains a very large number of transitions. The spectrum, along with previous cooler laboratory emission spectra and an absorption spectrum recorded from a sunspot, is analyzed in the 500-2000 cm(-1) region. Use of a calculated variational linelist for water allows significant progress to be made on assigning transitions involving highly excited vibrational and rotational states. In particular emission from rotationally excited states up to J=42 and vibrational levels with up to eight quanta of bending motion are assigned. (C) 2005 American Institute of Physics.
|Number of pages||8|
|Journal||Journal of Chemical Physics|
|Publication status||Published - 15 Feb 2005|
- POTENTIAL-ENERGY SURFACE
- HYDROGEN FLAME SPECTRA
- RO-VIBRATIONAL LEVELS