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Radiative zone

Astronomy Radiative transferRadio astronomy

RADIATIVE ZONE - Portion of a star where the primary transport of energy is by photons (electromagnetic radiation).

 


Radiative zone
From about 0.2 to about 0.7 solar radii, solar material is hot and dense enough that thermal radiation is sufficient to transfer the intense heat of the core outward.

radiative zone: The region inside a star where energy is carried outward as photons.
radio galaxy: A galaxy that is a strong source of radio signals.

The Radiative Zone
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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 ...

The Radiative Zone (or radiation zone): The next layer out from the core is this zone which emits radiation. This radiation diffuses outwards. The temperature ranges from 15 million °C to one million °C.

radiative zone the region of a star's interior where energy is transported outward with photons. For the Sun, it is the region above the core.

radiative zone (SOHO Glossary - GSFC) An interior layer of the Sun, lying between the core and the convection zone, where energy travels outward by radiation. radiator (NASA Thesaurus / NASA SP-7, 1965) 1.

It consists of a central core, convective and radiative zones, the photosphere, the chromosphere, and the corona. The core of the star is where all the nuclear fusion reactions occur to power the star.

Often, you might hear radiative zone and convection zone when referring to the solar interior.

At the onset of the walk, the photon is a high energy gamma-ray, but it loses most of its energy in all those collisions it has as it works its way through the Radiative Zone.

The next layer of the sun is the Radiative Zone, which is where most of the harmful gamma rays bounce around until they become less energetic forms of light. The temperature here is about 5,000,000 K (9,000,000 °F).

Recent analysis of SOHO mission data favors a faster rotation rate in the core than in the rest of the radiative zone.

The core, about 25% of the Sun's radius with a temperature of ~ 10,000,000 K,
The radiative zone, out to about 70% of the Sun's radius, with a temperature of ~ 8,000,000 K,
The convection zone, with a temperature of about 500,000 K.

Features revealed by helioseismology include that the outer convective zone and the inner radiative zone rotate at different speeds to generate the main magnetic field of the Sun, ...

The interior of the Sun, where we cannot observe directly, can be divided into three parts: The core, where energy is produced; the radiative zone, where energy is transported by radiation; and the convective zone, ...

Strong electric currents flow at the boundary between the convective zone and the radiative zone, and the Sun's magnetic field is generated there. [NASA diagram of the Sun] ...

The Sun's interior comprises three main regions. The core, only 25% of the Sun's diameter, a radiative zone extending from the core to 70% of the diameter and the outer region where convection processes dominate.

See also: Sun, Solar, Temperature, Energy, Convection

Astronomy Radiative transferRadio astronomy

 
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