In the radiative zone, energy generated by
nuclear fusion in the core moves outward as electromagnetic radiation
. In other words, the energy is conveyed by photons. … In the convective zone, heat and energy are carried outward along with matter in swirling flows called convection cells.
Is radiative zone hotter than convective zone?
The most efficient means of energy transfer is now convection and we find ourselves in the region of the Sun’s interior know as the convection zone. The
hotter material near the top of the radiation zone
(the bottom of the convection zone) rises up and the cooler material sinks to the bottom.
What is a 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 the 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.
What does the convective zone do?
A region of turbulent plasma between a star’s core and its visible photosphere at the surface, through which energy is transferred by convection. In the convection zone,
hot plasma rises, cools as it nears the surface, and falls to be heated and rise again
.
What is the purpose of the radiative zone?
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 happens in the radiative zone?
In the radiative zone,
energy generated by nuclear fusion in the core moves outward as electromagnetic radiation
. In other words, the energy is conveyed by photons. When the energy reaches the top of the radiative zone, it begins to move in a different fashion in the convective zone.
What is the hottest layer in the Sun’s atmosphere?
The outermost atmospheric layer is
the corona
, which gets really hot, almost 2,000,000 degrees F.
Where is the radiative zone?
Just outside the Inner Core of the sun at a distance approximately 0.25 to 0.7 solar radii
lies the Radiative Zone. This zone radiates energy through the process of photon emission and capture by the hydrogen and helium ions.
What is the convection zone made of?
What is the convection zone? It is made out of
plasma
. The convective zone, like the rest of the Sun, is made up entirely of plasma. A plasma is a ‘gas’ that conducts electrical currents, just like a wire does.
What is Corona of Sun?
Definition: Corona is
a luminous envelope of plasma that surrounds the Sun and other celestial bodies
. It is extended to millions of kilometres into space and is commonly seen during a total solar eclipse. … The composition of the corona is the same as the interior of the Sun, mainly made up of hydrogen but ionized form.
What percent of the Sun is the radiative zone?
The radiative zone of the sun starts at
about 25 percent of the radius, and extends to about 70 percent of the radius
. In this broad zone, heat from the core cools dramatically, from between seven million K to two million K. In the radiative zone, energy is transferred by a process called thermal radiation.
How hot is the convection zone?
The convection zone is the outer-most layer of the solar interior. It extends from a depth of about 200,000 km right up to the visible surface. At the base of the convection zone the temperature is
about 2,000,000° C.
How long does it take for energy from the sun to reach the top of the convection zone?
Although I’ve left all of the messy mathematics out, I calculated that while traveling at the speed of light, that photon would take
about 264 years
for a photon to travel from the core of the Sun to the Convection Zone.
What happens to energy in the sun’s convection zone?
What happens to energy in the Sun’s convection zone?
Energy is transported outward by the rising of hot plasma and sinking of cooler plasma
. … We are seeing hot gas rising and cool gas falling due to the convection that occurs beneath the surface.
How long does it take energy to get through the radiative zone?
Sometimes it moves outward, sometimes inward and just a often it moves side to side. It takes
over 170 thousand years
for the energy released in the core of the Sun to get out of the radiation zone!
