On the technique for the recovery of the spectrum of turbulence in astrophysical discs

被引：0
|
作者：
Bisikalo, D. V. [1 ]
Kurbatov, E. P. [1 ]
Pavlyuchenkov, Ya. N. [1 ]
Zhilkin, A. G. [1 ,2 ]
Kaygorodov, P. V. [1 ]
机构：
[1] RAS, Inst Astron, 48 Pyatnitskaya St, Moscow 119017, Russia
[2] Chelyabinsk State Univ, 129 Bratyev Kashirinykh St, Chelyabinsk 454001, Russia
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2016年 / 458卷 / 04期
基金：
俄罗斯科学基金会; 俄罗斯基础研究基金会;
关键词：
accretion; accretion discs; line: profiles; turbulence; methods: statistical; protoplanetary discs; ACCRETION DISKS; BINARY-SYSTEMS; VELOCITY MODIFICATION; PROTOPLANETARY DISK; GASEOUS ACCRETION; POWER SPECTRUM; TIDAL TORQUES; EVOLUTION; SHOCKS; TRANSPORT;
D O I：
10.1093/mnras/stw587
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present a method that can be used to recover the spectrum of turbulence from observations of optically thin emission lines formed in astrophysical discs. Within this method, we analyse how line intensity fluctuations depend on the angular resolution of the instrument, used for the observations. The method allows us to restore the slope of the power spectrum of velocity turbulent pulsations and estimate the upper boundary of the turbulence scale.
引用
收藏
页码：3892 / 3903
页数：12
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