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 evidence is there that the Sun has a magnetic field?
We can observe the shape of the magnetic fields above the sun's surface because they guide the motion of that plasma – the loops and towers of material in the corona glow brightly in EUV images.
Does sunspots have magnetic field?
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).
Are suns magnetic?
The sun has a large and complex magnetic field. The Sun's average large-scale magnetic field, like that of the Earth, exhibits a north and a south pole linked by lines of magnetic force.. Magnetic fields are created by things that are magnetic (like iron magnets) or by moving charged particles.
What evidence do we have that the granulation seen on the Sun’s surface is caused by convection?
What evidence do we have the granulation seen on the sun's surface is caused by convection? The bright centers of granules are hotter than their dark boundaries AND doplar measurements indicate that the centers are rising and the edges are sinking.
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.
How does the suns magnetic field work?
The sun's magnetic field has two poles, like a bar magnet. The poles flip at the peak of the solar activity cycle, every 11 years. A solar wind composed of charged particles carries the magnetic field away from the sun's surface and through the solar system. The sun is not a solid ball, but rather like a fluid.
How is the magnetic field typically arranged in a sunspot group?
They chart the magnetic fields running in and out of the photosphere. Most of the sunspots occur in pairs or groups of opposite magnetic polarity, and they are usually oriented roughly parallel to the Sun's equator, in the east-west direction of the Sun's rotation.
Why do sunspots have strong magnetic fields?
Sunspots are caused by extremely strong, localized magnetic fields on the Sun. "Jet streams" of plasma that form deep within the Sun's convective zone produce powerful magnetic fields.
What information does the size of a sunspot tell us about the Sun’s magnetic field?
what does the size of a sunspot tell us about the Sun's magnetic field and how does it help us predict solar storms? the larger the sunspot the stronger the magnetic field, and greater potential for solar storms.
What info does the size of a sunspot tell us about the Sun’s magnetic field?
what does the size of a sunspot tell us about the Sun's magnetic field and how does it help us predict solar storms? the larger the sunspot the stronger the magnetic field, and greater potential for solar storms.
How do magnetic fields keep sunspots cooler than the surrounding plasma explain?
How do magnetic fields keep sunspots cooler than the surrounding plasma? Explain. They separate the sunspot's gas from the rest of the Sun's surface gas. This prevents them from mixing and heating the sunspot back to the average surface temperature.
What phenomena show evidence of the Sun’s magnetic field in their looped shapes quizlet?
The Zeeman Effect shows that sunspots contain magnetic fields. Sunspots are hotter than the photosphere. Solar flares have no known effect on the Earth. Solar prominences have twisted and looped shapes because of the solar magnetic field.
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.
How do we know that sunspots are associated with strong magnetic fields quizlet?
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.
What information does the size of a sunspot tell us about the sun’s magnetic field?
what does the size of a sunspot tell us about the Sun's magnetic field and how does it help us predict solar storms? the larger the sunspot the stronger the magnetic field, and greater potential for solar storms.
What does the size of a sunspot tell us about the Sun’s magnetic field and how does it help us predict solar storms?
Terms in this set (32) what does the size of a sunspot tell us about the Sun's magnetic field and how does it help us predict solar storms? the larger the sunspot the stronger the magnetic field, and greater potential for solar storms.
What statements accurately describe sunspots?
Sunspots are storms on the Sun's surface. Sunspots are marked by intense magnetic activity. Sunspots produce solar flares and hot gassy ejections. Sunspots can affect Earth's climate.
What is solar magnetic field?
The solar magnetic field is highly variable, which makes the solar wind and the magnetic field it carries with it into interplanetary space highly variable in space and in time. To a first approximation, the magnetic field near the visible solar surface can be regarded as a dipole like that of the earth.
What evidence do we have to support our current ideas about the solar interior?
We see many sunspots on the surface of the Sun. Humans have not sent a spacecraft into the interior of the Sun to confirm any models of the interior. What evidence then do we have to support our current ideas about the solar interior? Solar neutrinos!
Does the sun’s magnetic field affect the Earth?
No. The only influence that the Sun's magnetic field has on the Earth is through the energy released by solar flares and coronal mass ejections. These events are caused by changes in the Sun's magnetic field structure.
Which of the following is the evidence that convection occurs in the layers just below the Sun’s photosphere?
Which of the following is evidence that convection occurs in the layers just below the suns photosphere? The centers of granules are hot and moving upward away from the center of the sun.
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.
What evidence do we have that the granulation seen on the Sun surface is caused by convection?
What evidence do we have the granulation seen on the sun's surface is caused by convection? The bright centers of granules are hotter than their dark boundaries AND doplar measurements indicate that the centers are rising and the edges are sinking.
What creates the Sun’s strong magnetic field quizlet?
There is a magnetic field on the sun caused by the movement of gases and the sun's rotation. The magnetic fields cause convection to slow in parts of the convective zone. Slower convection causes a decrease in the amound of gas tha tis transferring energy from the core of the sun to these reigons of the photosphere.
How are the sun’s magnetic field and its activity cycle related?
The Short Answer: The Sun's magnetic field goes through a cycle, called the solar cycle. Every 11 years or so, the Sun's magnetic field completely flips. This means that the Sun's north and south poles switch places. Then it takes about another 11 years for the Sun's north and south poles to flip back again.
What does the sun’s magnetic field cause?
As these magnetic fields emerge through the Sun's visible surface (the photosphere), they form sunspots and other active regions and create complex and dynamic plasma structures in the Sun's upper atmosphere (corona).
What are sunspots quizlet?
A sunspot is a region on the Sun's photosphere that is cooler and darker than the surrounding material. Sunspots often appear in pairs or groups with specific magnetic polarities that indicate electromagnetic origins. solar flares.
What happens every 11 years on the Sun?
The Sun has its ups and downs and cycles between them regularly. Roughly every 11 years, at the height of this cycle, the Sun's magnetic poles flip — on Earth, that'd be like if the North and South Poles swapped places every decade — and the Sun transitions from sluggish to active and stormy.
How can we measure the strength of magnetic fields in sunspots?
Methods and Observations: Surface magnetic fields are measured by the Zeeman splitting of suitable Fraunhofer spectrum absorption lines. Solar “magnetographs” make use of the fact that the Zeeman components are oppositely polarized and they are able to measure magnetic flux outside of sunspots to very small levels.