Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004dps....36.3304b&link_type=abstract
American Astronomical Society, DPS meeting #36, #33.04; Bulletin of the American Astronomical Society, Vol. 36, p.1144
Astronomy and Astrophysics
Astronomy
Scientific paper
We present results of spectroscopic observations of C/ 2000 WM1 (LINEAR) on UT 25 Nov 2001. The data were obtained using the NIRSPEC instrument at the Keck II telescope. NIRSPEC is a cross-dispersed cryogenic infrared spectrometer that permits a nearly complete high-dispersion survey of the 2.9 - 3.7 μ m region.
The 3 μ m region (3335 - 3285 cm-1) in Comet WM1 includes emission from HCN, C2H2, OH, NH2, and other strong emissions that are preliminarily consistent with hot bands of H2O. Fourteen ro-vibrational lines of the ν 3 band of HCN were detected in comet WM1, which permitted an accurate determination of its rotational temperature and production rate. Several lines of the ν 3 band of C2H2were also detected. A full analysis of this spectrum, production rates, and rotational temperature will be presented.
KM-S would like to acknowledge support from the National Science Foundation RUI Program No. 0407052. MJM acknowledges support from the NASA Planetary Astronomy Program under RTOP 344-32-51-03.
Barone C.
Bonev Boncho
Chin Gordon
Dello Russo Neil
DiSanti Michael A.
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