Meier R, Owen T C, Matthews H E, Jewitt D C, Bockelée-Morvan D, Biver N, Crovisier J, Gautier D
University of Hawaii, Institute for Astronomy, 2680 Woodlawn Drive, Honolulu, HI 96822, USA.
Science. 1998 Feb 6;279(5352):842-4. doi: 10.1126/science.279.5352.842.
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 H2, implies that comets cannot be the only source for the oceans on Earth.
利用位于夏威夷莫纳克亚山的詹姆斯·克拉克·麦克斯韦望远镜，在彗星C/1995 O1（海尔-波普彗星）中探测到了重水（HDO）。海尔-波普彗星水的推断氘/氢比为(3.3±0.8)×10⁻⁴。这一结果与对哈雷彗星的原位测量以及在C/1996 B2（百武彗星）中发现的值一致。这个氘/氢比高于地球水的氘/氢比，且比原太阳氢分子的值高10倍以上，这意味着彗星不可能是地球上海洋的唯一来源。
