This paper presents a numerical investigation of the laminar mixed convection flow of a radiating gas in an inclined lid-driven cavity. The fluid is treated as a gray, absorbing, emitting, and scattering medium. The governing differential equations including continuity, momentum and energy are solved numerically by the computational fluid dynamics techniques (CFD) to obtain the velocity and tem...

When a black hole accretes slowly, the radiative cooling of the infalling gas is weak and the accretion disk does not form. A hot collisionless quasi-spherical halo is formed instead. The properties of such halos are discussed. The rate of accretion, the radiative efficiency, and the temperature and density near the hole are evaluated.

This article discusses the question how the white noise of radiative corrections affects the chaotic properties of an original quantum system. It is shown, by an explicit mathematical analysis, that the radiative corrections in effect remove the original chaos in the system. 05.40.+j, 05.45.+b, 12.20.Ds, 03.65.Sq Typeset using REVTEX

The aim of this study is to investigate the sensitivity of radiative-forcing computations to various contrail crystal shape models. Contrail optical properties in the shortwave and longwave ranges are derived using a ray-tracing geometric method and the discrete dipole approximation method, respectively. Both methods present good correspondence of the single-scattering albedo and the asymmetry ...

Ice clouds play a major role in the radiative energy budget of the earth-atmosphere system (Liou 1986). Their radiative effect is governed primarily by the equilibrium between their albedo and greenhouse effects. Both macrophysical and microphysical properties of ice clouds regulate this equilibrium. To quantify the effect of these clouds on climate and weather systems, they must be properly ch...

ABSTRACT LHAASO J1908+0621 has recently been detected as a source emitting ?-rays with energies above 100 TeV, and multiband observations show that break around 1 TeV appears in the ?-ray spectrum. We have reanalysed GeV properties of 100-TeV using 14 years data recorded by Fermi Large Area Telescope (Fermi-LAT). The spectrum energy range 30–500 an index 1.50 ± 0.26, which is much smaller than ...