Deuterium in comet C 1995 O1 (Hale-Bopp):: Detection of DCN

被引：142

作者：

Meier, R

Owen, TC

Jewitt, DC

Matthews, HE

Senay, M

Biver, N

Bockelée-Morvan, D

Crovisier, J

Gautier, D

机构：

[1] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA

[2] Natl Res Council Canada, Herzberg Inst Astrophys, Victoria, BC V8X 4M6, Canada

[3] Joint Astron Ctr, Hilo, HI 96720 USA

[4] Univ Massachusetts, Five Coll Radio Astron Observ, Amherst, MA 01003 USA

[5] Observ Paris, F-92195 Meudon, France

来源：

SCIENCE | 1998年 / 279卷 / 5357期

关键词：

D O I：

10.1126/science.279.5357.1707

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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 greater than or equal to 30 +/- 10 K in the fragment of interstellar cloud that formed the solar system.

引用

页码：1707 / 1710

页数：4

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[21] INTEGRATED-INTENSITIES IN HYDROGEN-CYANIDE [J].