Velocity-Dependent Eddington Factor in Relativistic Radiative Flow
نویسندگان
چکیده
منابع مشابه
Velocity-Dependent Eddington Factor in Relativistic Radiative Flow
We propose a variable Eddington factor, depending on the flow velocity v, for the relativistic radiative flow, whose velocity becomes of the order of the speed of light. When the gaseous flow is radiatively accelerated up to the relativistic regime, the velocity gradient becomes very large in the direction of the flow. As a result, the radiative diffusion may become anisotropic in the comoving ...
متن کاملRelativistic Variable Eddington Factor in a Relativistic Plane-Parallel Flow
We examine the behavior of the variable Eddington factor for a relativistically moving radiative flow in the vertical direction. We adopt the “one-tau photo-oval” approximation in the comoving frame. Namely, the comoving observer sees radiation coming from a closed surface where the optical depth measured from the observer is unity; such a surface is called a one-tau photo-oval. In general, the...
متن کاملRelativistic Variable Eddington Factor
We analytically derive a relativistic variable Eddington factor in the relativistic radiative flow, and found that the Eddington factor depends on the velocity gradient as well as the flow velocity. When the gaseous flow is accelerated and there is a velocity gradient, there also exists a density gradient. As a result, an unobstructed viewing range by a comoving observer, where the optical dept...
متن کاملVariable Eddington Factor in a Relativistic Plane-Parallel Flow
We examine the Eddington factor in an optically thick, relativistic flow accelerating in the vertical direction. When the gaseous flow is radiatively accelerated and there is a velocity gradient, there also exists a density gradient. The comoving observer sees radiation coming from a closed surface where the optical depth measured from the observer is unity. Such a surface, called a one-tau pho...
متن کاملRelativistic Radiative Flow in a Luminous Disk
Radiatively driven transfer flow perpendicular to a luminous disk was examined under a fully special relativistic treatment, taking into account radiation transfer. The flow was assumed to be vertical, and the gravity, the gas pressure, and the viscous heating were ignored. In order to construct the boundary condition at the flow top, the magic speed above the flat source was re-examined, and i...
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: 2006
ISSN: 0004-6264,2053-051X
DOI: 10.1093/pasj/58.2.461