Decompressive (cooling rarefaction) shock in optically thin radiative plasma.

نویسندگان

  • D K Morozov
  • M Pekker
چکیده

It is shown that the decompressive shock, i.e., a shock where the pressure behind the front is smaller than the pressure ahead of it, is possible in a radiative plasma; this is in contrast to the situation in classic gas dynamics. An example of a steady state decompressive shock wave for a simple, but realistic model for radiative losses is presented. It is shown that it satisfies the Landau stability criteria.

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Parametrization of the average ionization and radiative cooling rates of carbon plasmas in a wide range of density and temperature

In this work we present an analysis of the influence of the thermodynamic regime on the monochromatic emissivity, the radiative power loss and the radiative cooling rate for optically thin carbon plasmas over a wide range of electron temperature and density assuming steady state situations. Furthermore, we propose analytical expressions depending on the electron density and temperature for the ...

متن کامل

Thermal instability of an optically thin dusty plasma

We investigate the role of thermal instability, arising from radiative cooling of an optically thin, dusty plasma, by linear stability analysis. The corresponding isobaric stability condition for condensation mode is found to be modified significantly by the degree of ionization and concentration of finite sized, relatively heavy, and negatively charged dust particles. It has been shown that th...

متن کامل

Radiative Shocks in Astrophysics and the Laboratory

This paper explores the variations in radiative shock behavior originating from the properties of the system containing the shock. Specifically, the optical depth of the upstream region and the downstream region both affect the behavior of radiative shocks. Optically thick systems such as stellar interiors or supernovae permit only limited shock-induced increases in density. At the other limit,...

متن کامل

The Formation of a Cooling Layer in a Partially Optically Thick Shock

The mechanics of a radiative shock which has “collapsed,” or been compressed to high density, via radiative cooling is discussed. This process is relevant to an experiment in xenon gas that produced a driven, radiatively collapsed shock, and also to a simulation of the supernova 1987A shock wave passing through the outer layers of the star and into the low-density circumstellar material.

متن کامل

The influence of radiative effects on the accretion onto stellar magnetospheres

The influence of radiative effects on the accretion onto stellar magnetospheres is investigated by performing global 2and 2.5-dimensional simulations on the basis of high-resolution numerical schemes with the application of irregular grids adapted to the shape of the magnetopause. The latter is represented by an impermeable, contracted dipole magnetic field surface with polar holes. Accreting m...

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

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Physical review. E, Statistical, nonlinear, and soft matter physics

دوره 64 1 Pt 2  شماره 

صفحات  -

تاریخ انتشار 2001