質量小恆星 的英文怎麼說

中文拼音 [zhíliángxiǎohéngxīng]
質量小恆星 英文
undermassive star
  • 質 : Ⅰ名詞1 （性質; 本質） nature; character; essence 2 （質量） quality 3 （物質） matter; substance;...
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 小 : Ⅰ形容詞1 （體積、面積、數量、強度等不大） small; little; petty; minor 2 （年紀小的; 年幼的） youn...
  • 恆 : Ⅰ形容詞1 （永久; 持久） permanent; lasting 2 （平常; 經常） usual; common; constant Ⅱ名詞1 （恆心...
  • 星 : 名詞1 （夜晚天空中閃爍發光的天體） star 2 [天文學] （宇宙間能發射光或反射光的天體） heavenly body...
  • 質量 : 1 [物理學] mass 2 （產品或工作的優劣程度） quality 3 economy （離子源的）; 質量標準 quality level...
  • 恆星 : [天文學] fixed star; star恆星大氣 stellar atmosphere; 恆星導航 star navigation; stellar guidance;...
  1. Because of gravitational attraction, the escape velocity at the surface of a star, say, will be higher if the star is smaller in size or heavier

    恆星質量越大，體積越小，引力的羈絆便越大，所需逃逸速度亦越高。
  2. On the bases of the galaxy evolution theory, we use the therotical chemical evolution model of three zone ( such as halo, thick disk and thin isk ) and multi - phase ( diffuse gas, molecular clouds, stars of both low and high mass, the remnants ). by comparing with the observational constraints, such assurface densities, age - metallicity relation, g - dwarf metallicity distribution in the solar neighbourhood and the correlation between [ a / fe ] and [ fe / h ], supernovae rates, infall rates. the rationality of the model is verified. based on the theory model, we calculate the abundance of neutron capture element

    本文正是在銀河系化學演化的基礎上，利用銀河系的三成分（ threezone ） （即暈、厚盤和薄盤）多相（ multi - phase ） （氣體，分子云，大、小質量恆星以及剩餘物質）的化學演化的理論模型，通過與觀測約束（質量面密度、場星的年齡-金屬豐度關系、太陽附近g矮星金屬含量分佈函數、三成份的特徵量、元素的星系化學演化、超新星的爆炸率、內落速率等）的比較，來檢驗模型的合理性。
  3. Solar system ' s main member includes : sun ( star ), nine planets ( including earth ), innumerable planetoids, multitudinous satellite ( including moon ), but also has the comet, the meteor as well as the massive dust matter and the thin gaseous state matter

    太陽系的主要成員有：太陽（恆星） 、九大行星（包括地球） 、無數小行星、眾多衛星（包括月亮） ，還有彗星、流星以及大量塵埃物質和稀薄的氣態物質。
  4. The evolution time in our calculation is chosen to be 12 gyr, which is the mean value of globular cluster ages in the galaxy

    恆星蒸發對小質量球狀星團的演化起著主導作用，大質量恆星的演化、銀河系核球和盤的沖擊加熱以及動力學磨擦則主要影響大質量球狀星團的演化。
  5. The embryo inside the protostar is less massive than the envelope; most of the mass is still falling inward.

    原恆星內部的胚胎的質量比包殼小，大部分物質一直在朝中心落去。
  6. Vigorous mass loss from these stars before they explode, and the heat generated by the supernovas drive the gas out of the galaxy at millions of miles per hour

    在爆發之前，這些恆星會發生劇烈的物質損失，而超新星產生的熱量也可以將氣體以每小時幾百萬英里的速度驅出星系。
  7. From these minuscule shifts, the team estimated that the planet is about three times the mass of jupiter, and orbits its star at a distance slightly greater than that between mars and the sun

    從這些極小的變化中，他所在的工作小組估測這顆行星的質量是木星的三倍，它的軌道距離恆星的距離比火星到太陽的距離略長。
  8. The emerging consensus is that the early universe was dominated by a small number of giant galaxies containing colossal black holes and prodigious bursts of star formation, whereas the present universe has a more dispersed nature ? the creation of stars and the accretion of material into black holes are now occurring in a large number of medium - size and small galaxies

    目前逐漸形成的共識是，早期宇宙是由數量稀少、但含有巨大黑洞，且恆星形成率超高的巨型星系所主宰，今日的宇宙則具有較零散的特性恆星的誕生與黑洞吸積物質的作用，發生在龐大數量的中、小型星系內。
  9. After 100, 000 to one million years, depending on the original mass of the star, it ceases altogether, and the remnant star settles down as an extremely dense and hot white dwarf ? a stellar ember crushed by gravity into a nearly crystalline orb about the size of earth

    經過10 ~ 100萬年（取決于恆星的原始質量） ，恆星風將驟然終止，而恆星的殘留物會演變成極緻密高熱的白矮星：一種被重力擠壓成地球般大小，近乎晶質球體的恆星遺骸。
  10. Less massive stars such as our sun, can in principle shake off their excess angular momentum in a rather distinctive fashion.

    跟我們太陽一樣的質量較小恆星原則上能以完全不同的方式，拋掉他們的剩餘角動量。
  11. Because of its great mass, both the core temperature and density are higher than that of a solar mass star. the nuclear reaction rate is also higher and it produces more energy per second. the star is of spectral type o, b or a

    由於質量更大，恆星核心的密度及溫度亦必然比小質量恆星高，所以熱核反應會以更快速度進行，產生出更多的熱能，恆星會更加光亮，這些恆星通常為o b或a型恆星。
  12. There are two different ideas about the massive star formation. some investigators suggest that high - mass stars form via dynamical collapse of cloud cores, resulting in disk accretion and molecular outflows, similar to their low - mass counterparts ; some peoples suggest that high - mass stars form by the coalescence of low - to intermediate - mass stars

    關于大質量恆星的形成有兩種觀點：一種觀點認為大質量恆星通過雲核的塌縮，然後產生一個吸積盤和外流，即相似於低質量恆星的形成；另一種觀點認為大質量恆星通過中小質量的恆星併合而成。
  13. A fourth object, which has more than ten times the mass of earth and is the nearest to the star yet found, was noticed by another team in 2004

    第四顆行星被另一個科研小組於2004年發現，它有著地球十倍的質量，而且是與那顆已知恆星距離最近的。
  14. We know from observations of nearby galaxies that a small number of high - mass stars and a larger number of low - mass stars usually form at the same time

    從對鄰近星系的觀測我們得知：少數的大質量恆星，往往會和為數眾多的小質量恆星同時形成。
  15. If a star is less massive than about 0. 4 solar mass, its life will be quite uneventful

    一顆小於太陽質量0 . 4倍的恆星，它的一生是非常平靜的。
  16. Supermassive black holes containing millions to billions of solar masses could also form wherever a large number of stars are packed in a relatively small region of space, or by large amounts of mass falling into a " seed " black hole, or by repeated fusion of smaller black holes

    超大質量的黑洞包含數百萬到幾十億的太陽質量，無論大量恆星聚集在一相對地小的空間區域里也可以形成黑洞，或通過大量質量落下進入一個「種子」黑洞之內，或通過反復融合比較小的黑洞。
  17. Our solar system consists of an average star we call the sun, the planets mercury, venus, earth, mars, jupiter, saturn, uranus, neptune, and pluto and, the satellites of the planets ; numerous comets asteroids, and meteoroids ; and the interplanetary medium

    我們太陽系由普通恆星? ?太陽、九大行星（水星、金星、地球、火星、木星、土星、天王星、海王星和冥王星）和各大行星的衛星、數量眾多的彗星、小行星、流星以及行星間的介質組成。
  18. Influence of mixing parameters on the structure and evolution of low - and intermediate - mass stars

    混合參數對中小質量恆星結構和演化的影響
  19. For the most massive stars, because the reaction rate is much faster, they will use up their fuel in the core in about

    一百萬年便會把核心的燃料耗盡而較小質量恆星的壽命便長得多，可達
  20. Candidates for stellar - mass black holes were identified mainly by the presence of accretion disks of the right size and speed, without the irregular flare - ups that are expected from disks around other compact objects

    鑒別恆星質量黑洞主要靠合適大小和速度的增大圓盤的存在，沒有認為從其它緊密物體周圍閃耀的無規律的閃光。
分享友人
分享到 Line

分享到臉書