Publication Date:
1998-03-28
Description:
Deuterated hydrogen cyanide (DCN) was detected in a comet, C/1995 O1 (Hale-Bopp), with the use of the James Clerk Maxwell Telescope on Mauna Kea, Hawaii. The inferred deuterium/hydrogen (D/H) ratio in hydrogen cyanide (HCN) is (D/H)HCN = (2.3 +/- 0.4) x 10(-3). This ratio is higher than the D/H ratio found in cometary water and supports the interstellar origin of cometary ices. The observed values of D/H in water and HCN imply a kinetic temperature 〉/=30 +/- 10 K in the fragment of interstellar cloud that formed the solar system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Meier, R -- Owen, T C -- Jewitt, D C -- Matthews, H E -- Senay, M -- Biver, N -- Bockel e-Morvan, D -- Crovisier, J -- Gautier, D -- New York, N.Y. -- Science. 1998 Mar 13;279(5357):1707-10.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉University of Hawaii, Institute for Astronomy, 2680 Woodlawn Drive, Honolulu, HI 96822, USA. meier@uhifa.ifa.hawaii.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9497286" target="_blank"〉PubMed〈/a〉
Keywords:
Deuterium/*analysis
;
Hydrogen Cyanide/*analysis
;
Ice
;
*Meteoroids
;
Temperature
;
Water
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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