「HYDROGEN」の共起表現一覧(2語右が「helium」)
該当件数 : 16件
include, for example, brown dwarfs (balls of | hydrogen and helium with masses ), never begin nuclear |
Hydrogen becomes helium in the nuclear reaction that t | |
The proportion of elements other than | hydrogen and helium, known as the metallicity, is simi |
sis, the only elements that formed aside from | hydrogen and helium were trace amounts of lithium. |
An outer layer of | hydrogen and helium up to ten percent in mass would be |
rly in the history of the Universe before the | hydrogen and helium were contaminated by heavier eleme |
omposed of hot ices with an outer envelope of | hydrogen and helium, and is termed a "hot Neptune". |
t that they sustain thermonuclear reaction of | hydrogen to helium and can make heavier elements. |
ed to the co-discovery, with Luis Alvarez, of | hydrogen and helium of atomic mass 3 (tritium and heli |
and as it contains many elements heavier than | hydrogen and helium, having formed in the evolved star |
sient atmosphere, containing small amounts of | hydrogen and helium captured from the solar wind, as w |
Although it is mostly made of | hydrogen and helium it may contain up to 20 Earth mass |
d-sized stars, once they have finished fusing | hydrogen to helium in their core, begin to fuse helium |
Hydrogen and helium are expected to continually leak f | |
echnique to the measurement of the spectra of | hydrogen and helium, reproducing the distribution of i |
Apart from the | hydrogen and helium in the universe, which are thought |
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