A determination of the HDO/H2O ratio in comet C/1995 O1 (Hale-Bopp)

被引：208

作者：

Meier, R

Owen, TC

Matthews, HE

Jewitt, DC

Bockelée-Morvan, D

Biver, N

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] Observ Paris, F-92195 Meudon, France

来源：

SCIENCE | 1998年 / 279卷 / 5352期

关键词：

D O I：

10.1126/science.279.5352.842

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 water (HDO) was detected in comet C/1995 O1 (Hale-Bopp) with the use of the James Clerk Maxwell Telescope on Mauna Kea, Hawaii. The inferred D/H ratio in Hale-Bopp's water is (3.3 +/- 0.8) x 10(-4). This result is consistent with in situ measurements of comet P/Halley and the value found in C/1996 B2 (Hyakutake). This D/H ratio, higher than that in terrestrial water and more than 10 times the value for protosolar H-2,, implies that comets cannot be the only source for the oceans on Earth.

引用

页码：842 / 844

页数：3

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