Erratum: Core Structure of Intracluster Gas: Isothermal Hydrostatic Equilibrium
نویسندگان
چکیده
منابع مشابه
Quasi-hydrostatic intracluster gas under radiative cooling
Quasi-hydrostatic cooling of the intracluster gas is studied. In the quasi-hydrostatic model, work done by gravity on the inflow gas with dP 6= 0, where P is the gas pressure, is taken into account in the thermal balance. The gas flows in from the outer part so as to compensate the pressure loss of the gas undergoing radiative cooling, but the mass flow is so moderate and smooth that the gas is...
متن کاملOn the radial density profile of intracluster gas tracing the isothermal dark halo with a finite core
The cusped NFW universal density profile suggested by typical CDM models has been challenged in recent years by the discoveries of the soft cores with finite central density for a broad range of masses from dwarf galaxies to clusters of galaxies. It is thus desirable that a new, analytic model would instead become available for virialized dark halos. One promising candidate is probably the empi...
متن کاملHydrostatic equilibrium of a porous intracluster medium: implications for mass fraction and X-ray luminosity
The presence of dilute hot cavities in the intracluster medium (ICM) at the cores of clusters of galaxies changes the relation between gas temperature and its X-ray emission properties. Using the hydrostatic equations of a porous medium we solve for the ICM density for a given temperature as a function of the filling factor of dilute bubbles. We find that at a given temperature, the core X-ray ...
متن کاملImplications of Abundance Gradients in Intracluster Gas
Analysis of spatially resolved ASCA spectra of the intracluster gas in Abell 496 confirms that metal abundances increase toward the center. We also find spatial gradients in several abundance ratios, indicating that the fraction of iron from SN Ia increases toward the cluster center and that the dominant metal enrichment mechanism near the center must be different than in the outer parts.
متن کاملDissipative fluids out of hydrostatic equilibrium
In the context of the Müller-Israel-Stewart second order phenomenological theory for dissipative fluids, we analyze the effects of thermal conduction and viscosity in a relativistic fluid, just after its departure from hydrostatic equilibrium, on a time scale of the order of relaxation times. Stability and causality conditions are contrasted with conditions for which the ”effective inertial mas...
متن کاملذخیره 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: Publications of the Astronomical Society of Japan
سال: 2005
ISSN: 0004-6264,2053-051X
DOI: 10.1093/pasj/57.4.707