Consumption of Hydrogen by Annihilation Reactions in Ultradense Hydrogen H(0) Contributed to Form a Hot and Dry Venus.

IF 3.5 3区 物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS Astrobiology Pub Date : 2023-10-01 Epub Date: 2023-09-19 DOI:10.1089/ast.2022.0131
Leif Holmlid, Frans Olofson, Dan Gall
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Abstract

When water vapor reacts with metals at temperatures of a few hundred kelvin, free hydrogen and metal oxides are formed. Iron is a common metal giving such reactions. Iron oxide together with a small amount of alkali metal as promoter is a good catalyst for forming ultradense hydrogen H(0) from the released hydrogen. Ultradense hydrogen is the densest form of condensed matter hydrogen. It can be formed easily at low pressure and is the densest material in the Solar System. Spontaneous and induced nuclear processes in H(0) create mesons (kaons, pions) in proton annihilation reactions. It is here agreed on that the great difference in the present conditions on Venus and Earth are caused by the initial difference in the temperatures of the planets due to their different distances from the Sun. This temperature difference means that, in warmer planetary environments such as on Venus, the iron + water steam → iron oxide + hydrogen reaction proceeded easily, meaning a consumption of water to give H(0) formation and release of nuclear energy by subsequent nuclear reactions in H(0). On the slightly cooler Earth, the iron + liquid water reaction was slower, and less water formed H(0). Thus, the water consumption and the heating due to nuclear reactions was smaller on Earth. The experiments proving that the mechanisms of forming H(0) and the details of the nuclear processes have been published. The more intense particle radiation from the nuclear processes in H(0) and the lack of water probably impeded formation of complex molecules and, thus, of life on planets like Venus. These processes in H(0) may, therefore, also imply a narrower zone of life in a planetary system than believed previously.

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超致密氢H(0)中湮灭反应对氢的消耗有助于形成炎热干燥的金星。
当水蒸气在几百开氏温度下与金属反应时,就会形成游离氢和金属氧化物。铁是产生这种反应的常见金属。氧化铁与少量碱金属一起作为促进剂是由释放的氢形成超致密氢H(0)的良好催化剂。超致密氢是凝聚态氢中密度最高的一种。它在低压下很容易形成,是太阳系中密度最高的物质。H(0)中自发和诱导的核过程在质子湮灭反应中产生介子(kaons,pions)。在这里,人们一致认为,金星和地球目前状况的巨大差异是由行星与太阳距离不同导致的初始温度差异造成的。这种温差意味着,在金星等较温暖的行星环境中,铁+水蒸汽→ 氧化铁+氢反应很容易进行,这意味着消耗水来形成H(0),并通过随后在H(0中的核反应释放核能。在稍冷的地球上,铁+液态水的反应较慢,形成H(0)的水更少。因此,地球上因核反应而产生的水消耗和热量较小。实验证明了H(0)的形成机制和核过程的细节已经发表。来自H(0)核过程的更强烈的粒子辐射和水的缺乏可能阻碍了复杂分子的形成,从而阻碍了金星等行星上生命的形成。因此,H(0)中的这些过程也可能意味着行星系统中的生命区比以前认为的要窄。
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来源期刊
Astrobiology
Astrobiology 生物-地球科学综合
CiteScore
7.70
自引率
11.90%
发文量
100
审稿时长
3 months
期刊介绍: Astrobiology is the most-cited peer-reviewed journal dedicated to the understanding of life''s origin, evolution, and distribution in the universe, with a focus on new findings and discoveries from interplanetary exploration and laboratory research. Astrobiology coverage includes: Astrophysics; Astropaleontology; Astroplanets; Bioastronomy; Cosmochemistry; Ecogenomics; Exobiology; Extremophiles; Geomicrobiology; Gravitational biology; Life detection technology; Meteoritics; Planetary geoscience; Planetary protection; Prebiotic chemistry; Space exploration technology; Terraforming
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