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metallicity    
金属丰度; 金属特征; 金属性

金属丰度; 金属特徵; 金属性


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  • Metallicity - Wikipedia
    The metallicity of a star is most often expressed in terms of [Fe H], which represents the logarithmic ration of iron to hydrogen relative to the Sun's value
  • Metallicity in Astronomy - Definition Detailed Explanation . . .
    Metallicity in astronomy refers to the abundance of elements heavier than helium in a celestial object, such as a star or a galaxy These “metals” include elements like carbon, oxygen, nitrogen, and iron, which are formed through nuclear fusion processes in stars
  • Metallicity - Simple English Wikipedia, the free encyclopedia
    Metallicity is a term in astronomy It means the amount of elements that are heavier than hydrogen and helium Most of the normal physical matter in the Universe is either hydrogen or helium Astronomers use the word "metals" as a convenient short term for "all elements except hydrogen and helium"
  • Metallicity and Astrochemistry - Definition Detailed Explanation . . .
    Metallicity refers to the abundance of elements heavier than helium in a celestial object, such as a star, galaxy, or nebula These elements are created through nuclear fusion processes within stars and supernovae explosions
  • METALLICITY | definition in the Cambridge English Dictionary
    The greater a star's metallicity, the better its chances to have planets If the metallicity is too low, there is not enough material to build Earth-like planets
  • What is Metallicity? - AllTheScience
    Metallicity is a term used in astronomy to refer to the proportion of matter in a star made of elements other than hydrogen and helium In astronomical parlance, such elements (lithium, carbon, oxygen) are called metals
  • Metallicity
    In stellar astrophysics, metallicity usually refers to the abundance of iron and is defined as the iron-to-hydrogen ratio
  • metallicity
    Metallicity in its general sense is the ratio of metals (metals using astrophysics' odd definition: all elements except hydrogen and helium) in an astronomical object as compared to the whole, i e , compared to metals and non-metals combined
  • Metallicity - an overview | ScienceDirect Topics
    Metallicity is the property of a metal to conduct electricity or heat A simple metal is directly tied to its transport properties However, transport depends on the type of material under observation
  • Metallicity - Space Wiki
    In astronomy and physical cosmology, the metallicity of an object is the proportion of its matter made up of chemical elements other than hydrogen and helium (This terminology is in disaccord what chemistry regards as metals)





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