What is radiative zone?
The layer of a star that lies just outside the core, to which radiant energy is transferred from the core in the form of photons. In this layer, photons bounce off other particles, following fairly random paths until they enter the convection zone.
What is radiative zone of the Sun?
The radiative zone is a thick layer of highly ionized, very dense gases which are under constant bombardment by the gamma rays from the core. It is about 75% hydrogen and 24% helium. Because most of the atoms here lack electrons, they can't absorb photons for convection to the surface.
Where is the radiation zone?
The radiative zone extends outward from the outer edge of the core to the interface layer or tachocline at the base of the convection zone (from 25% of the distance to the surface to 70% of that distance). The radiative zone is characterized by the method of energy transport – radiation.
Why is it called the radiative zone?
Moving outward, next comes the radiative (or radiation) zone. Its name is derived from the way energy is carried outward through this layer, carried by photons as thermal radiation.
What is the radiation zone of the Earth?
A radiation zone, or radiative region is a layer of a star's interior where energy is primarily transported toward the exterior by means of radiative diffusion and thermal conduction, rather than by convection. Energy travels through the radiation zone in the form of electromagnetic radiation as photons.
Is the radiative zone a layer of the Sun?
The Sun has 7 different zones which are classified as the inner and outer layer. The core, radiative zone and convection zone are the three inner layers.
What is the temperature of the radiative zone?
Radiative zone temperatures Outside the sun's core lies the radiative zone where temperatures range from 12 million degrees F (7 million degrees C) nearest the core to around 4 million degrees F (2 million degrees C) in the outer radiative zone, according to the educational website Study.com (opens in new tab).
What is the radiation zone of the earth?
A radiation zone, or radiative region is a layer of a star's interior where energy is primarily transported toward the exterior by means of radiative diffusion and thermal conduction, rather than by convection. Energy travels through the radiation zone in the form of electromagnetic radiation as photons.
What is the difference between the radiative zone and the convective zone?
The Sun's radiative zone extends from the core outward to about 70% of the Sun's radius. In a smaller (than the Sun) star that is cooler than our Sun, the convective zone tends to be larger, extending deeper into the star's interior. Thus the radiative zone tends to be smaller.
How thick is the radiative zone?
300,000 km thick
| Core | Radius of 150,000 km | 10,000,000 K |
|---|---|---|
| Radiative Zone | 300,000 km thick | 8,000,000 K |
| Convective Zone | 200,000 km thick | 500,000 K |
| Photosphere | 500 km thick | 5800 K |
| Chromosphere | 10,000 km thick | 4,000 to 400,000 K |
What is the temperature of the radiation zone?
roughly 2-7 million degrees Celsius At the radiation zone this is the site where energy is transported in the form of radiation. Occupying 45% of the radius, the radiation zone has a temperature that is roughly 2-7 million degrees Celsius.