Abstract
The high resolution laboratory spectrum of hot water vapour has been recorded in the 500-13 000 cm(-1) wavenumber range and we report on the analysis of the 4750-13 000 cm(-1) (0.769-2.1 mu m) portion. The emission spectrum was recorded using an oxy-acetylene welding torch and a Fourier transform spectrometer. Line assignments in the laboratory spectrum as well as in an absorption spectrum of a sunspot umbra were made with the help of the BT2 line-list. Our torch spectrum is the first laboratory observation of the 9300 angstrom 'steam bands' seen in M-stars and brown dwarfs.
Original language | English |
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Pages (from-to) | 1093-1098 |
Number of pages | 6 |
Journal | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY |
Volume | 387 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1 Jul 2008 |
Keywords
- line : identification
- molecular data
- sunspots
- infrared : stars
- MOLECULAR SPECTROSCOPIC DATABASE
- LABORATORY SPECTROSCOPY
- LINE ASSIGNMENTS
- FREQUENCY-RANGE
- BAND SPECTRUM
- VAPOR
- H2O
- SUN
- SUBMILLIMETER
- TEMPERATURES