恆星學 的英文怎麼說

中文拼音 [héngxīngxué]
恆星學 英文
astrognosy
  • 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...
  • 學 : Ⅰ動詞1 （學習） study; learn 2 （模仿） imitate; mimic Ⅱ名詞1 （學問） learning; knowledge 2 （學...
  • 恆星 : [天文學] fixed star; star恆星大氣 stellar atmosphere; 恆星導航 star navigation; stellar guidance;...
  1. Caption : : astronomers were surprised to discover a 25 - million - year - old protoplanetary disk around a pair of red dwarf stars 350 light - years away

    天文學家一直認為恆星形成的同時一定會形成行星，但最近一項發現推翻了這定律。
  2. Astronomers usually assume that interstellar dust is closely confined to the galactic plane.

    天文學家通常認為，恆星際星塵都是緊靠著銀河平面的。
  3. For decades, scientists have known that supernovae, the explosive deaths of giant stars, trigger reactions to forge most of the heavy elements in the universe

    巨大的恆星在死亡時會產生超新星爆炸，所引發的反應，製造了宇宙中大多數的重元素，這是科學家幾十年前就已經知道的。
  4. Evolution of stars of all masses takes place on a hydrodynamic time scale.

    各種質量的恆星的演化，均以流體力學的時間尺度進行。
  5. From long ago, by an established tradition that can be traced to the hypothesis of immanuel kant and the marquis de laplace, astronomers have assumed that stars develop out of a scattered, diffuse medium of gas and dust.

    很長時間以來，天文學家承襲了可以追溯至康德和拉普拉斯假說所建立的概念，認為恆星由散布在空中的彌漫氣塵物質演變而來。
  6. 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。
  7. Astronomers tacitly assume that stars of the same luminosity and color all have the same mass.

    天文學家心照不宣地默認，光度和顏色都相同的恆星具有相同的質量。
  8. In this situation astronomers tacitly assume that stars of the same luminosity and color all have the same mass.

    在目前的狀況下，天文學家心照不宣地默認，光度和顏色都相同的恆星具有相同的質量。
  9. Many planets ( for example, ganymede, mercury, the earth, jupiter and saturn ) and stars ( for example, the sun ) possess intrinsic magnetic fields. the explanation for their existence and variation remains a great challenge to planetary scientists and astrophysicists. this article attempts to review some recent developments and difficulties in the study of magnetohydrodynamics for the electrically conducting fluid interiors of planets and stars. it is the fluid motions, usually driven by thermal convection, that generate and sustain magnetic fields through magnetohydrodynamic processes in planets and stars. in planets, the magnetohydrodynamic processes are strongly affected by the combined and inseparable effects of rotation, magnetic fields and spherical geometry. the key dynamics involves the interaction between the coriolis and lorentz forces. in the sun, it is the solar tachocline, a thin shear flow layer located at the base of the convection envelope, that plays an essential role in the solar magnetohydrodynamic processes which produce the 11 - year sunspot cycle. some results of a new nonlinear three - dimensional solar dynamo model are also presented

    許多行星（如木衛三，水星，地球，木星和土星）和恆星（如太陽）具有內部磁場.對這些磁場的存在和變化的解釋對行星科學家和天體物理學家是一個巨大的挑戰.本文試圖總結行星和恆星的導電流體內部磁流體力學研究的新近發展和困難.一般由熱對流驅動的流動通過磁流體力學過程產生並維持在行星和恆星中的磁場.在行星中磁流體力學過程強烈地受到轉動，磁場和球幾何位型的綜合影響.其動力學的關鍵方面涉及科里奧利力和洛倫茲力間的相互作用.在太陽中其流線，即處于對流層的薄的剪切流層在太陽的磁流體力學過程中扮演了一個基本的角色，並由之產生了11年的太陽黑子周期.本文也給出了一個新的非線性三維太陽發電機模型
  10. Archaeoastronomy is the study and interpretation of solar, lunar and stellar alignments found at ancient monuments such as pyramids, towers, ground lines such as the nazca lines in peru, and megalithic sites stonehenge, carnac, newgrange, etc

    考古天文學是研究和解釋太陽、月亮和恆星排列，是研究和解釋在古代建立的紀念碑諸如金字塔、城堡、地面線條如秘魯的納斯卡線條和巨石地方史前巨石柱、卡納克，紐格蘭奇古墓等等。
  11. That both natality and mortality, as well as all other phenomena of evolution, tidal movements, lunar phases, blood temperatures, diseases in general, everything, in fine, in nature s vast workshop from the extinction of some remote sun to the blossoming of one of the countless flowers which beautify our public parks, is subject to a law of numeration as yet unascertained

    文林奇先生算術學士提出了富於獨創性的建議：出生與死亡，與所有其他進化現象潮汐的漲落月亮的盈虧體溫的高低一般疾病一樣。總而言之，大自然之巨大作坊中的萬物，遠方一顆恆星之消失乃至點綴公園的無數鮮花之綻開，均應受計數法則的支配，而這一法則迄今尚未確定下來。
  12. The stellar astronomers have to accept low intensity reciprocity failure as a significant fact of life.

    恆星天文學家不得不承認低強度倒易律失效是重大的事實。
  13. Astronomers have found that many stellar objects contain hydrogen atoms.

    天文學家們已經發現，許多恆星上含有氫原子。
  14. Because blue and red are respectively near the frequency of high and low ends of the visible spectrum

    由於藍及紅為可見光譜中頻率最高及最低的兩端，所以在天文學中，我們稱恆星光的
  15. Topics include : planets, planet formation ; stars, the sun, " normal " stars, star formation ; stellar evolution, supernovae, compact objects ( white dwarfs, neutron stars, and black holes ), plusars, binary x - ray sources ; star clusters, globular and open clusters ; interstellar medium, gas, dust, magnetic fields, cosmic rays ; distance ladder ; galaxies, normal and active galaxies, jets ; gravitational lensing ; large scaling structure ; newtonian cosmology, dynamical expansion and thermal history of the universe ; cosmic microwave background radiation ; big - bang nucleosynthesis

    課程的主題包含了：行星、行星形成；恆星、太陽、正常的恆星、恆星形成；恆星演化、超新星、緻密天體（白矮星、中子星及黑洞） 、波霎、雙x -射線源；星團、球狀及疏散星團；星際介質、氣體、塵埃、磁場、宇宙射線；距離階梯；星系、正常及活躍星系、噴流；重力透鏡；大尺度結構；牛頓宇宙學、宇宙的動力膨脹及溫度發展歷史；宇宙背景微波輻射；大霹靂核合成。
  16. The cosmic cloud is also our closest massive star - formation factory, and astronomers suspect that it contains about 1, 000 young stars

    該星雲也是離我們最近的大質量恆星製造廠，天文學家們懷疑它含有大約1000顆年輕恆星。
  17. Most scientists despaired of ever knowing the physical nature of the stars.

    大多數科學對了解恆星的物理性質失去了信心。
  18. They did have one good lead to go on : when interstellar dust grains form in the cores of stars and are then ejected into space, they carry with them the signature of the event that produced them

    科學家們確實寄希望于：當星際塵埃從恆星核心形成以及隨后被拋入太空，攜帶著它們誕生時的信息。
  19. In many stellar disks, observers also have found the spectral signature of silicate emission, indicating that small dust grains on the disk surface have been strongly heated by the stellar radiation

    天文學家也發現了許多恆星氣盤具有矽的發射光譜，表示盤面上的微小塵埃顆粒已被恆星輻射強烈加熱。
  20. The aim of the galaxy chemical evolution research is to reproduce the element abundance patter of stars and gas in the galaxy

    銀河系化學演化研究的任務，從根本來說，是重現銀河系中恆星與氣體的元素豐度分布圖象。
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