white dwarf 中文意思是什麼

white dwarf 解釋
【天文學】白矮星。

  • white : n 懷特〈姓氏〉。adj 1 白（色）的，雪白的；白晰的，帶白色的；蒼白的。2 白種人的。3 銀制的；白衣的...
  • dwarf : n 1 矮小的動物[植物]；矮生植物。2 【北歐神話】（善做金屬小工藝品的）矮神。3 【天文學】矮星 （＝dw...
  1. The nova phenomenon generally occurs in a binary system that has as one member a very hot white dwarf.

    新星這種現象一般發生在雙星系統中，其中一顆子星是非常熱的白矮星。
  2. Data from the chandra observation show that the central ten - million - degree celsius cloud is the remains of a supernova explosion that destroyed a white dwarf star

    來自錢德拉的觀測數據表明，中心溫度達上千萬攝氏度的雲湍團是超新星爆發的殘余，爆發摧毀了一顆白矮星。
  3. Measuring 2, 500 miles across and weighing five million trillion trillion pounds, the rock was found on valentine ' s day buried in the core of a white dwarf star in the constellation centaurus

    這塊石頭直徑達2500英里，重5 10的42次方磅，藏在人馬座中一顆白矮星的中心，是在情人節那天被發現的。
  4. This and the x - ray spectrum, which exhibits a high concentration of iron atoms relative to oxygen and silicon, convincingly show that the ejecta are the remains of an exploded white dwarf star

    這幅圖連帶x射線光譜（顯示出了鐵相對氧與硅的高度集中）令人信服地說明，拋出的物質是爆發白矮星的殘余。
  5. A row of sunken dwarf willows borders the stream on one or both sides, while at a greater distance the meadow is skirted with maples, alders, and other fluviatile trees, overrun with the grape - vine, which bears fruit in its season, purple, red, white, and other grapes

    沿著溪流的一邊或者兩側有一排沉入水中的矮柳，而稍遠處，草甸則被楓樹、榿木以及其他一些長在河裡的樹圍繞著，葡萄藤則四處蔓延，一到結果實的季節，這里就會長出紫的，紅的，白的以及其他各種葡萄來。
  6. Pre - white dwarf

    白矮前身星
  7. It will quietly and steadily burn the hydrogen to helium and become a white dwarf

    它會穩定地把氫轉化為氦，然後安靜的死去，成為白矮星。
  8. Recall that type i supernova is the strong explosion of a nova that even the white dwarf is destroyed

    還記得i型超新星是足以令中心白矮星炸毀的新星爆發嗎？
  9. Since a 7 - solar - mass is too large to be a white dwarf or neutron star, it must be a black hole

    因為有著7個太陽質量的星體不可能是白矮星或中於星，所以它一定是黑洞。
  10. If the mass of the white dwarf becomes greater than about 1. 4 times the mass of the sun, it becomes unstable and is blown apart in a thermonuclear explosion

    如果白矮星的質量超過了太陽的1 . 4倍，它會變得不穩定，並在熱核爆炸中碎裂。
  11. As the main-sequence mass of the star increases, the mass of the final remnant left as a white-dwarf star also increases.

    在恆星在主序的質量增加時，作為白矮星留下來的最終殘骸的質量也增加。
  12. In contrast, a type i supernova is an ordinary nova explosion that are strong enough to destroy the white dwarf at the center

    Ii型超新星i型超新星其實只是強度足以把中心白矮星炸毀的普通新星爆發。
  13. That is the following in essence. a sufficient mass of cold matter will necessarily collapse to a black hole, and stars with different mass will evolve into the white - dwarf - star, the neutron - star or the black - hole eventually because of the radiation of the burning core. the collapse of stars with sufficient mass leads to a black hole endowed with mass and charge and angular momentum, no other adjustable parameters : " a black hole has no hair.

    第二章簡單介紹一下「黑洞無毛」理論形成，即足夠質量的冷物質能夠塌縮成黑洞，不同質量的恆星由於核燃燒輻射最終會演化成為白矮星、中子星或黑洞，以及黑洞的終態系統唯一地由質量、電荷和角動量確定，而無其它物理參數，此即為「黑洞無毛」理論。
  14. When it dies ( by swelling to become a red giant, a planetary nebula and finally a white dwarf ), it will be much hotter than other, older white dwarfs of similar mass

    當它（膨脹成紅巨星、行星狀星雲並最後變成白矮星）死亡時，它的溫度將比其他質量相近的年老白矮星，要高上許多。
  15. The evolution of fixed star having something to do with nuclear reaction, the star generally loses partial mass in its final period and finally collapses into compact star ( white dwarf, neutron star or black hole )

    恆星的演化與核反應有關，演化到晚期的恆星一般要損失一部分質量，然後坍縮成緻密星（白矮星、中子星或黑洞） 。
  16. If the mass of the core after a supernova explosion is more than 1. 4 but less than about 3 solar masses, then electron degenerate pressure is not strong enough to support the star. the star will contract to a size even smaller than the white dwarf. the electrons are squeezed into the nuclei and are combined with the protons to form neutrons

    假若在超新星爆發后，剩餘核心質量介乎太陽質量的1 . 4至3倍，那麼核心中的電子簡並壓力便再不足以抵抗強大的引力，恆星會進一步收縮，直至電子亦被擠壓至原子核內，和質子結合成為中子。
  17. Matter will be transferred from the red giant to the white dwarf when the gravity of the red giant at its surface is weaker than that of the white dwarf. when sufficient matter is accreted onto the surface of the white dwarf, nuclear reactions will start and sustain for a short period on the white dwarf surface. enormous energy is produced

    當紅巨星的表面引力比白矮星弱時，部分物質會盤旋流進白矮星內，當足夠的物質積聚在白矮星表面，便會燃點起熱核反應，產生出巨大的能量，這種爆發會維持下去，直至所有氫氣耗盡。
  18. 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。
  19. Most of childen love to read the story of snow white and seven dwarf

    大多數小朋友都喜歡讀「白雪公主和七個小矮人」的故事。
  20. We know that a star with mass lower than 8 solar masses, such as the sun, will end its life as a cold, compact object called white dwarf

    少於8個太陽質量的星如太陽，最終會演化為一顆寒冷細小的白矮星。
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