Deuterium on Mars: The Abundance of HDO and the Value of D/H

DOI Web Site 被引用文献20件

書誌事項

公開日
1988-06-24
DOI
  • 10.1126/science.240.4860.1767
公開者
American Association for the Advancement of Science (AAAS)

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説明

<jats:p> Deuterium on Mars has been detected by the resolution of several Doppler-shifted lines of HDO near 3.7 micrometers in the planet's spectrum. The ratio of deuterium to hydrogen is (9 ± 4) × 10 <jats:sup>-4</jats:sup> ; the abundance of H <jats:sub>2</jats:sub> 0 was derived from lines near 1.1 micrometers. This ratio is enriched on Mars over the teiluric value by a factor of 6 ± 3. The enrichment implies that hydrogen escaped more rapidly from Mars in the past than it does now, consistent with a dense and warm ancient atmosphere on the planet. </jats:p>

収録刊行物

  • Science

    Science 240 (4860), 1767-1767, 1988-06-24

    American Association for the Advancement of Science (AAAS)

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