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Large-Scale Structure of Gas-and-Dust Disks and Stability of Gas-Dynamic Equilibrium of the Dust Envelopes of Young Stars
Astrophysical Bulletin ( IF 1.2 ) Pub Date : 2020-07-27 , DOI: 10.1134/s1990341320020029
T. R. Abdulmyanov

Abstract—The paper analyzes the origin for the separation of gas-and-dust disks around young stars into two large groups: those with circular and spiral structures. Such a separation of disk structures is explained by the existence of stable and unstable gas-dynamic equilibrium of protostellar envelopes. A model of wave disturbances of the gas-dust protostellar envelopes is constructed. The equation of the integrated average radiation intensity in the dust envelope of protostars is obtained. The radii of five protostars at the time of their observation and the time of their entry onto the Main Sequence were determined.

中文翻译:

尘埃盘的大型结构和幼星尘埃包络的气动力平衡稳定性

摘要—本文分析了将年轻恒星周围的气尘盘分成两大类的起源:圆形和螺旋形结构。圆盘结构的这种分离是由原恒星包膜的稳定和不稳定气体动力平衡的存在来解释的。建立了气尘星际包络线的波干扰模型。得到原恒星尘埃包层中的综合平均辐射强度方程。确定了五个原恒星的观测半径以及它们进入主序列的时间。
更新日期:2020-07-27
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