What causes the granulation we see on the Sun’s surface?

What causes the granulation we see on the Sun’s surface?

Close-up views of the photosphere also show patterns of light areas surrounded by darker borders, called "granulation." Similar to the patterns you can see at the top of a pot of boiling water or oatmeal, granulation is caused by heat rising upward to the photosphere from the hotter solar interior.

What causes the bubbling pattern of granulation that we see in the Sun’s photosphere?

Granules on the photosphere of the Sun are caused by convection currents (thermal columns Bénard cells) of plasma within the Sun's convective zone. The rising part of the granules is located in the center where the plasma is hotter. The outer edge of the granules is darker due to the cooler descending plasma …

Why does convection cause granulation?

A granule is a convection cell in the Sun's photosphere. They are caused by convection currents of plasma in the Sun's convective zone, directly below the photosphere. The grainy appearance of the solar photosphere is produced by the tops of these convective cells and is called granulation.

What happens in the convection zone of the Sun?

What happens in the convection zone of the Sun? In the convection zone, photons are transferred to the photosphere through convection currents. The gases are heated near the radiative zone and are lighter than the gases near the cooler photosphere.

What causes granulation?

Granulation tissue formation is part of a normal healing process. Under certain conditions, such as infection, self-mutilation, or a local reaction to a chronically implanted, foreign material, this tissue grows uncontrollably and becomes very vascular and secretive.

What is the evidence in the photosphere of the type of energy transport occurring beneath it?

What is the evidence in the photosphere of the type of energy transport occurring beneath it? A certain type of energy transport (radiation, convection, or conduction) occurs just below the photosphere.

What is granulation?

Definition of granulation 1 : the act or process of granulating : the condition of being granulated. 2 : one of the minute red granules of new capillaries formed on the surface of a wound in healing.

What evidence of the convective process under the surface of the Sun do astronomers observe?

The effect of the solar convection zone can be seen on the surface in the form of granulation of the photosphere. As hotter, and therefore brighter, gas rises and cooler, dimmer gas sinks, a characteristic "mottled" appearance results.

What happens in the Sun’s convection zone quizlet?

What happens to energy in the Sun's convection zone? Energy is produced in the convection zone by nuclear fusion. Energy is transported outward by the rising of hot plasma and sinking of cooler plasma. Energy is produced in the convection zone by thermal radiation.

What is the evidence in the photosphere of the type of energy transport occurring beneath it quizlet?

What is the evidence in the photosphere of the type of energy transport occurring beneath it? A certain type of energy transport (radiation, convection, or conduction) occurs just below the photosphere.

What evidence do we have that the sunspots are magnetic?

We know that sunspots are magnetic because we can directly observe the effect that the field has on the spectral lines we observe through a phenomenon called the Zeeman effect.

What is granulation and how is it caused?

Granulation tissue is a sign that the wound is on its way past an often-stubborn inflammatory phase of healing and progressing into the building phase of proliferation.

What causes over granulation?

Irritation caused by chronic wound fluid in contact with the wound bed or persistent pressure/friction is another cause of hypergranulation tissue. This may include wound dressings or treatments that typically impact an initial inflammatory response for healing and may result in increased exudate.

What does granulation tell us about the layers below the photosphere?

What does the granulation tell us about the layers below the photosphere? Since granules on the sun's photosphere are constantly growing and shrinking, astronomers can assume that convection currents are happening below it, where the gas rises and falls due to heat.

How do observations of the Sun’s surface tell us about conditions in the solar interior?

How do observations of the Sun's surface tell us about conditions in the solar interior? Observations of the Sun's surface can tell us about the Sun's differential rotation, as well as see the oscillations of the Sun, which are the result of vibrations from internal pressure waves.

What is granulation in the Sun quizlet?

Granules on the photosphere of the Sun are caused by convection currents (thermal columns, Bénard cells) of plasma within the Sun's convective zone. The grainy appearance of the solar photosphere is produced by the tops of these convective cells and is called granulation.

What happens in the convection layer of the Sun?

What happens in the convection zone of the Sun? In the convection zone, photons are transferred to the photosphere through convection currents. The gases are heated near the radiative zone and are lighter than the gases near the cooler photosphere.

Which of the following is evidence that granulation is caused by convection below the photosphere?

Which of the following is evidence that granulation is caused by convection below the photosphere? The centers of granules are rising and their edges are falling.

What evidence can you give that sunspots are magnetic quizlet?

What evidence is there that sunspots are magnetic? They are darker than their surroundings. Their spectra show the Zeeman effect.

What causes the Sun’s magnetic properties?

The Sun's high temperatures cause the positively charged ions and negatively charged electrons that make up its plasma to move around a lot. The moving plasma creates many complicated magnetic fields that twist and turn. The extremely hot plasma that blows off the Sun as the solar wind. also causes a magnetic field.

What causes granulation astronomy?

A granule is a convection cell in the Sun's photosphere. They are caused by convection currents of plasma in the Sun's convective zone, directly below the photosphere. The grainy appearance of the solar photosphere is produced by the tops of these convective cells and is called granulation.

What causes granulation tissue around G tube?

Causes of hypergranulation tissue include too much movement of the feeding tube, the stoma is wet, too much pressure on the stoma, trauma to the stoma, or an infection.

Which is the best description of granulation tissue?

Granulation tissue often appears as red, bumpy tissue that is described as “cobblestone-like” in appearance. It is highly vascular, and this is what gives this tissue its characteristic appearance. It is often moist and may bleed easily with minimal trauma.

What causes sun spots on the Sun?

Sunspots are caused by disturbances in the Sun's magnetic field welling up to the photosphere, the Sun's visible "surface". The powerful magnetic fields in the vicinity of sunspots produce active regions on the Sun, which in turn frequently spawn disturbances such as solar flares and coronal mass ejections (CMEs).

How do we know about the interior of the Sun?

Instead, solar physicists study the sun's interior the same way that geologists look deep into the Earth—via seismology. Just as earthquakes trigger seismic waves that travel through the Earth, shifting mass in the sun sends pressure waves rippling through its interior.

What causes graininess on the Sun?

They are caused by convection currents of plasma in the Sun's convective zone, directly below the photosphere. The grainy appearance of the solar photosphere is produced by the tops of these convective cells and is called granulation.

What does the granulation tell us about the layers below the photosphere?

What does the granulation tell us about the layers below the photosphere? Since granules on the sun's photosphere are constantly growing and shrinking, astronomers can assume that convection currents are happening below it, where the gas rises and falls due to heat.

What evidence is there that sunspots are magnetic?

Finally, to answer your question: astronomers know that sunspots are associated with magnetic fields because they can look at the spectral lines that come from the sunspots and measure by how much these lines are split.

Which is the cause of the Sun’s magnetic properties quizlet?

What is the source of the sun's changing magnetic field? The differential rotation of the sun and the sun's large iron core.

What is convection in astronomy?

Convection is the transfer of heat through fluid (liquid or gas). It probably relates to astronomy in that due to gravity, a star's core is much hotter than the rest of it.