Power-law tails in probability density functions of molecular cloud column density

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Probability density functions in the cloud-top mixing layer

The cloud-top mixing layer is an idealized configuration often employed in the literature to study local aspects (over length scales of the order of 10m) of the top of stratocumulus-topped mixed layers. Latent heat effects are further investigated here by means of direct numerical simulations, discussing the probability density functions of the horizontal and vertical velocities, as well as the...

متن کامل

Column Density Probability Distribution Functions in Turbulent Molecular Clouds: A Comparison between Theory and Observations

The one-point statistics of column density distributions of turbulent molecular cloud models are investigated and compared with observations. In agreement with the observations, the number N of pixels with surface density Σ is distributed exponentially N(Σ) ∼ exp(−Σ/Σ0) in models of driven compressible supersonic turbulence. However, in contrast to the observations, the exponential slope define...

متن کامل

On the scaling of probability density functions with apparent power-law exponents less than unity

We derive general properties of the finite-size scaling of probability density functions and show that when the apparent exponent τ̃ of a probability density is less than 1, the associated finite-size scaling ansatz has a scaling exponent τ equal to 1, provided that the fraction of events in the universal scaling part of the probability density function is non-vanishing in the thermodynamic limi...

متن کامل

Optimal power flow based on gray wolf optimization algorithm using probability density functions extraction considering wind power uncertainty

In recent years, utilization of the renewable based power plants has become widespread in the power systems. One of the most widely used renewable based power plants is wind power plants. Due to the utilization of wind energy to generate electricity, wind turbines have not emitted any environmental pollution. Thus, in addition to economic benefits, utilization of these power plants is of great ...

متن کامل

Algebraic Tails of Probability Density Functions in the Random-Force-Driven Burgers Turbulence.

The dynamics of velocity fluctuations governed by the Burgers equation, driven by the white-in-time random forcing function with f fsx 1 r , td 2 fsx, t0dg2 ~ rdst 2 t0d is considered on the interval 0 , x , L. The properties of the probability density function of velocity differences PsDu, rd are investigated for the three cases j ­ h0; 1y2; 2j. It is shown that the tail of the probability den...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Monthly Notices of the Royal Astronomical Society

سال: 2015

ISSN: 0035-8711,1365-2966

DOI: 10.1093/mnras/stv471