【摘要】：原行星盤是環(huán)繞在年輕星天體(如T Tauri型星,HAe/Be星)周圍的氣體塵埃盤,是具有初始角動量的分子云核在塌縮形成恒星過程中的自然結(jié)果,是行星系統(tǒng)的起源地。原行星盤研究不僅是恒星形成理論的重要組成部分,而且是行星形成理論的基礎(chǔ)。首先介紹了盤的形成與演化規(guī)律;然后介紹了年輕星天體的能譜分布,盤的模型和參數(shù)(質(zhì)量吸積率、質(zhì)量、尺度、溫度、壽命);隨后討論了塵埃顆粒在盤中生長的觀測證據(jù)以及行星在盤中形成的大致過程;最后對原行星盤研究的現(xiàn)狀和未來做了總結(jié)與展望。
[Abstract]:The protoplanetary disk is a gas dust disk around a young star (such as T Tauri star, HAe/Be star). It is the natural result of the collapse of the molecular cloud nucleus with initial angular momentum and the origin of the planetary system. The study of protoplanetary disk is not only an important part of star formation theory, but also the basis of planetary formation theory. The formation and evolution of disk are introduced, and the energy spectrum distribution, model and parameters of disk (mass accretion rate, mass, scale, temperature) are introduced. Then, the observational evidence of the growth of dust particles in disk and the general process of planetary formation in disk are discussed. Finally, the present situation and future of the study of the original planetary disk are summarized and prospected.
【作者單位】： 中國科學(xué)院紫金山天文臺;中國科學(xué)院研究生院;
【基金】：國家自然科學(xué)基金(10733030,10621303)
【分類號】：P185

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1 李百樂;磁場、粘性和非軸對稱性對原行星盤引力不穩(wěn)定性的影響[D];吉林大學(xué);2009年

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本文編號：2264824