Journal Article

Spectrum of hot water in the 4750–13 000 cm<sup>−1</sup> wavenumber range (0.769–2.1 μm)

Nikolai F. Zobov, Sergei V. Shirin, Roman I. Ovsyannikov, Oleg L. Polyansky, Robert J. Barber, Jonathan Tennyson, Peter F. Bernath, Michel Carleer, Reginald Colin and Pierre-François Coheur

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 387, issue 3, pages 1093-1098
Published in print July 2008 | ISSN: 0035-8711
Published online May 2008 | e-ISSN: 1365-2966 | DOI:
Spectrum of hot water in the 4750–13 000 cm−1 wavenumber range (0.769–2.1 μm)

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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 μm) 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 Å ‘steam bands’ seen in M-stars and brown dwarfs.

Keywords: line: identification; molecular data; sunspots; infrared: stars

Journal Article.  3175 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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