Brown, M. E. and Bouchez, A. H. and Spinrad, H. and Johns-Krull, C. M. (1995) Non-detection of the OH Meinel system in comet P/Swift-Tuttle. Astronomy and Astrophysics, 301 . L1-L4. ISSN 0004-6361 http://resolver.caltech.edu/CaltechAUTHORS:20121003-095912417
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We report a search for emissions from the OH Meinel system in high-resolution near-infrared spectra of comet P/Swift-Tuttle. Because of the large cometary heliocentric velocity and high resolution of the spectrograph, the cometary lines should be well separated from the bright OH sky lines. Contrary to the findings of Tozzi et al. (1994) - who report seeing cometary OH at intensities comparable to the sky emissions in their low-resolution spectra - we find no OH in these spectra with an upper limit of 5% the value of the night sky lines. The non-detection of these cometary lines is consistent with theoretical calculations of expected emission strengths from prompt and fluorescent emission from cometary OH.
|Additional Information:||© 1995 European Southern Observatory. Provided by the NASA Astrophysics Data System. Received 9 March 1995 I Accepted 2 May 1995. This research was supported by NASA grant# NAGW-2883. We thank G.P. Tozzi for enlightening comments on the manuscript. The staff at Lick Observatory, and Tony Misch in particular, continue to give invaluable assistance with cometary observations.|
|Subject Keywords:||Comet; OH; Spectra|
|Official Citation:||Non-detection of the OH Meinel system in comet P/Swift-Tuttle Brown, M. E.; Bouchez, A. H.; Spinrad, H.; Johns-Krull, C. M. Astronomy and Astrophysics, v.301, p.L1-L4|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Ruth Sustaita|
|Deposited On:||03 Oct 2012 18:21|
|Last Modified:||27 Dec 2012 02:48|
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