Parent Volatiles in Comet 9P/Tempel 1: Before and After Impact
- 14 October 2005
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 310 (5746), 270-274
- https://doi.org/10.1126/science.1119337
Abstract
We quantified eight parent volatiles (H 2 O, C 2 H 6 , HCN, CO, CH 3 OH, H 2 CO, C 2 H 2 , and CH 4 ) in the Jupiter-family comet Tempel 1 using high-dispersion infrared spectroscopy in the wavelength range 2.8 to 5.0 micrometers. The abundance ratio for ethane was significantly higher after impact, whereas those for methanol and hydrogen cyanide were unchanged. The abundance ratios in the ejecta are similar to those for most Oort cloud comets, but methanol and acetylene are lower in Tempel 1 by a factor of about 2. These results suggest that the volatile ices in Tempel 1 and in most Oort cloud comets originated in a common region of the protoplanetary disk.This publication has 12 references indexed in Scilit:
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