What causes the bubbling pattern of granulation that we see in the Sun’s photosphere 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 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 the Sun emit neutrinos quizlet?
Why does the Sun emit neutrinos? Convection releases neutrinos, which random walk through the radiation zone. The Sun was born with a supply of neutrinos that it gradually emits into space. Fusion in the Sun's core creates neutrinos.
Why do sunspots appear dark and pictures of the Sun quizlet?
Why do sunspots appear dark in pictures of the Sun? They are too cold to emit any visible light. They are extremely hot and emit all their radiation as X-rays rather than visible light. They actually are fairly bright, but appear dark against the even brighter background of the surrounding photosphere.
Which of the following is the best answer to the question why does the Sun shine quizlet?
Which of the following is the best answer to the question, "Why does the Sun shine?" As the Sun was forming, gravitational contraction increased the Sun's temperature until the core become hot enough for nuclear fusion, which ever since has generated the heat that makes the Sun shine.
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 …
What’s the name of the violently churning layer below the Sun’s photosphere?
The Sun's surface churns with a bubbling pattern called grannulation. Why? We are seeing hot gas rising and cool gas falling due to the convection that occurs beneath the surface. As one moves outward from the photosphere to the corona, what happens to the temperature and the density of the gases?
Why does the Sun’s surface churn?
As the sun rotates, the plasma near the poles rotates more slowly than the plasma near the equator. This off-rhythm spinning causes the magnetic field to get twisted and tangled into massive bundles. As the fields get more and more tangled, they burst through the sun's surface, leaving marks we know as sunspots.
What is the explanation for the pattern of granulation seen on the visible surface of the Sun?
What is the explanation for the pattern of granulation seen on the visible surface of the Sun? The granules are the tops of hot gas that have risen from the Sun's convective zone.
Which of the following is the best answer to this question why does the Sun shine?
Which of the following is the best answer to the question, "Why does the Sun shine?" As the Sun was forming, gravitational contraction increased the Sun's temperature until the core become hot enough for nuclear fusion, which ever since has generated the heat that makes the Sun shine.
What process causes granulation on the Sun?
convection currents 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 is the cause of sunspots?
Exposure to ultraviolet (UV) lights from the sun's rays or tanning beds accelerates the production of melanin, a pigment responsible for your skin color. After years of exposure, melanin may clump together or be produced in higher concentrations, causing sunspots.
What is the bubbling pattern on the surface of the Sun?
The Sun's surface churns with a bubbling pattern called grannulation. Why? We are seeing hot gas rising and cool gas falling due to the convection that occurs beneath the surface.
What does the Zeeman effect tell us about the Sun?
What it the Zeeman effect and what does it tell us about the Sun? The Zeeman effect is the splitting of spectral lines into several closely spaced lines due to the presence of a sunspot's magnetic field. The magnitude of the splitting tells us the strength of the local magnetic field on the Sun.
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 is the visible surface of the Sun called?
the photosphere The boundary between the Sun's interior and the solar atmosphere is called the photosphere. It is what we see as the visible "surface" of the Sun.
What is happening on the surface of the Sun?
The Surface: On the surface of the Sun, gases move in a rolling motion called convection. These convection cells can be seen as solar granules that are several thousand miles across, and change shape within a few minutes. You can see the same kind of motion by looking at the water in a boiling pot of water.
Which of the following best explains why the Sun’s luminosity gradually rises over billions of years?
Which of the following best explains why the sun's luminosity gradually rises over billions of years? Fusion gradually decreases the number of independent particles in the core, allowing gravity to compress and heat the core, which in turn increases the fusion rate and the Sun's luminosity.
What is the name of the surface of the Sun?
The part of the Sun we call its surface – the photosphere – is a relatively cool 10,000 °F (5,500 °C). In one of the Sun's biggest mysteries, the Sun's outer atmosphere, the corona, gets hotter the farther it stretches from the surface.
What is the cellular granulation pattern seen on the visible surface of the Sun?
What is the explanation for the bright cells of photospheric gases that make up the cellular granulation pattern seen on the visible surface of the Sun? The cells are the tops of blobs of hot gas that have risen from the Sun's convective zone.
What is a sunspot and how often do they occur?
They are regions of reduced surface temperature caused by concentrations of magnetic flux that inhibit convection. Sunspots appear within active regions, usually in pairs of opposite magnetic polarity. Their number varies according to the approximately 11-year solar cycle.
What are sunspots on sun?
Sunspots: One interesting aspect of the Sun is its sunspots. Sunspots are areas where the magnetic field is about 2,500 times stronger than Earth's, much higher than anywhere else on the Sun. Because of the strong magnetic field, the magnetic pressure increases while the surrounding atmospheric pressure decreases.
Why does the surface of the Sun look like a bubbling pattern with grains?
A bubbling star The grainy pattern in the telescope's “first light” image is the mark of plasma cells on the Sun's surface. Hot plasma from within the Sun rises to the surface, cools and sinks back down in a process called convection, like bubbling water in a boiling pot.
Why does the Zeeman effect occur?
The Zeeman effect is the splitting of the spectral lines of an atom in the presence of a strong magnetic field. The effect is due to the distortion of the electron orbitals because of the magnetic field. The (normal) Zeeman effect can be understood classically, as Lorentz predicted.
What effect does the Zeeman effect have on spectral lines from sun?
This causes spectral transition lines to also be split into more than one line, with the amount of splitting proportional to the strength of the magnetic field. This is called the Zeeman Effect , and the corresponding increase in the number of spectral lines is called Zeeman splitting.
What is the surface of the Sun made of?
Composition of the Sun Because it is made of gas, the Sun does not have a solid surface. This plasma is mostly comprised of hydrogen and some helium in the Sun's core.
What happens on the surface of the Sun?
The surface of the Sun heaves and boils as pockets of hot gas well up and sink back down. This gives the surface a grainy look, which is known as granulation. Violent explosions called solar flares rip through the surface, and giant fountainlike eruptions called prominences shoot super-hot gas far into space.
What is the surface of the Sun called?
the photosphere The part of the Sun we call its surface – the photosphere – is a relatively cool 10,000 °F (5,500 °C). In one of the Sun's biggest mysteries, the Sun's outer atmosphere, the corona, gets hotter the farther it stretches from the surface.
Why must the Sun’s rate of fusion is gradually increasing over time?
Why must the Sun's rate of fusion gradually rise over billions of years? Fusion reactions decrease the overall number of particles in the core, causing the core to shrink, converting gravitational potential energy into thermal energy, and increasing the rate of fusion.
What happens on the Sun’s surface?
The surface of the Sun heaves and boils as pockets of hot gas well up and sink back down. This gives the surface a grainy look, which is known as granulation. Violent explosions called solar flares rip through the surface, and giant fountainlike eruptions called prominences shoot super-hot gas far into space.
What does granulation show is happening inside the Sun?
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.