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Parent volatiles in comet 9P/Tempel 1: before and after impactWe quantified eight parent volatiles (H2O, C2H6, HCN, CO, CH3OH, H2CO, C2H2, and CH4) 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.
Document ID
20050240468
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Mumma, Michael J.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
DiSanti, Michael A.
Magee-Sauer, Karen
Bonev, Boncho P.
Villanueva, Geronimo L.
Kawakita, Hideyo
Dello Russo, Neil
Gibb, Erika L.
Blake, Geoffrey A.
Lyke, James E.
Campbell, Randall D.
Aycock, Joel
Conrad, Al
Hill, Grant M.
Date Acquired
August 23, 2013
Publication Date
October 14, 2005
Publication Information
Publication: Science
Volume: 310
Issue: 5746
ISSN: 0036-8075
Subject Category
Lunar And Planetary Science And Exploration
Distribution Limits
Public
Copyright
Other

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