convective zone

If the expansion occurs below a convective zone then nothing will be visible at the surface.

Smaller stars such as the Sun are just the opposite, with the convective zone located in the outer layers.

And it's the properties of the material in the convective zone that cause sunspots."

For most stars the convective zones will also vary over time as the star ages and the constitution of the interior is modified.

The convective zone matter was highly charged.

Below this mass, stars have cores that are entirely radiative with convective zones near the surface.

Stellar magnetic fields, according to solar dynamo theory, are caused within the convective zone of the star.

She was deep within the Sun's convective zone, the broad mantle of turbulent material beneath the glowing photosphere.

"In the cavern - the convective zone.

The existence of a corona appears to be dependent on a convective zone in the outer layers of the star.

This means the solar dynamo must operate in the more rapidly rotating radiative core just below the convective zone.

The radiative zone and the convective zone are separated by a transition layer, the tachocline.

"The convective zone gases.

"And the photosphere which we see, with its granules and supergranules, is essentially the top layer of the convective zone.

The tachocline is the transition region of the Sun between the radiative interior and the differentially rotating outer convective zone.

Some stars do give off flares of this magnitude, but they have large turbulent convective zones that are presumably responsible for the greatly enhanced surface activity.

Instead of the old "pot-on-the-stove" model of vertical convection, horizontal jet streams were found in the top layer of the convective zone.

This causes the outer layers to expand even further and generates a strong convective zone which brings heavy elements to the surface in a process called the first dredge-up.

Granules on the photosphere of the Sun are caused by convection currents (thermal columns, Bénard cells) of plasma within the Sun's convective zone.

It is hypothesised that the presence of planets may increase the amount of mixing and deepen the convective zone to such an extent that the Li can be burned.

The Sun, stable, burning tranquilly, had become a Main Sequence star; by the time Lieserl entered the convective zone, the Sun had burned for five billion years.

The wormhole probe, with its fragile cargo, would be able to penetrate as far as the bottom of this convective zone, twenty percent of the way toward the center of the Sun.

Rather, its rotation is fluid, the radiative and convective zones that compose its outer layers-and 85 percent of its radius-turning faster at the equator than at its poles.

The huge semistable convection cells around her reached from the photosphere to the base of the convective zone; they buffeted against each other like living things, huge whales in this insubstantial sea of gas.

The thin, searing hot gas of the convective zone poured into its triangular faces, so that the Interface was embedded in a sculpture of inflowing gas, a flower carved dynamically from the Sun's flesh.