What Evidence Do We Have That Sunspots Are Magnetic?
What evidence do we have that sunspots are magnetic? The spectral lines of sunspots are split by the Zeeman Effect and observations at far ultraviolet show material arched above the sun’s surface from one sunspot to another. What does a Maunder butterfly diagram show?
What evidence can you give 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.
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).
Do sunspots cause magnetic fields?
Sunspots are areas that appear dark on the surface of the Sun. They appear dark because they are cooler than other parts of the Sun’s surface. Solar flares are a sudden explosion of energy caused by tangling crossing or reorganizing of magnetic field lines near sunspots. … These areas are called magnetic fields.
What evidence do sunspots provide?
2.1 Sunspots
Sunspots provide the first indications of the possibility of solar eruptions that may precede geomagnetic storms on the Earth.
The Zeeman Effect shows that sunspots contain magnetic fields. Sunspots are hotter than the photosphere. Solar flares have no known effect on the Earth.
What evidence can you give that the corona has a very high temperature quizlet?
What evidence can you give that the corona has a very high temperature? Its spectrum shows that atoms in the corona are highly ionized so the gas must be at a high temperature. What color is the photosphere as viewed from the ground on a clear cloudless day when the Sun is highest overhead?
Why does the Sun have spots How do sunspots develop Is there a pattern to their appearance?
The sun has spots because of differential rotation. the spots are darker in color because they are cooler than the rest of the surface. … There are places on the Sun where this magnetic field rises up from below the Sun’s surface and pokes through creating sunspots.
What is unusual about the magnetic field in a sunspot?
What do sunspots and solar flares have in common?
What do sunspots solar prominences and solar flares all have in common? They are all strongly influenced by magnetic fields on the Sun. … Like all objects the Sun emits thermal radiation with a spectrum that depends on its temperature and the Sun’s surface temperature is just right for emitting mostly visible light.
What are sunspots responsible for?
What do sunspots tell us about the sun?
Studying the surface of the sun can reveal small dark areas that vary in number and location. These sunspots which tend to cluster in bands above and below the equator result from the interaction of the sun’s surface plasma with its magnetic field. But don’t let the numbers fool you. …
Where do sunspots occur on the sun?
Sunspots are darker cooler areas on the surface of the sun in a region called the photosphere. The photosphere has a temperature of 5 800 degrees Kelvin.
What observations characterize the solar maximum?
What observations characterize solar maximum? We see many sunspots on the surface of the sun. Solar max is when the sun is most active so there are more solar flares.
How can sunspots help determine the period of rotation of the Sun?
Each sunspot must travel a distance equal to the Sun’s circumference in order to make a full rotation around the Sun. As observed from Earth the rotation period or the time it takes a sunspot to go around the Sun once is give by the Sun’s circumference divided by the rotation speed.
Why are sunspots important to astronomers?
It is important to study and understand something as important as the sun because what happens on the sun and to the sun ultimately affects our life on earth. … By understanding sunspots how they are formed and their cycles on the sun we are better equipped to deal with changes in our environment on earth.)
What evidence is there that sunspots are magnetic quizlet?
What evidence do we have that sunspots are magnetic? The spectral lines of sunspots are split by the Zeeman Effect and observations at far ultraviolet show material arched above the sun’s surface from one sunspot to another. What does a Maunder butterfly diagram show?
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 reason that the evidence in Part B suggests the type of energy transport in Part A?
What is the reason that the evidence in part (b) suggests the type of energy transport in part (a)? The sun gives off radiation. There is no evidence of the types of energy transport occurring in the sun. These features are at a much lower temperature than the rest of the photosphere.
Which features of the solar corona indicate very high gas temperatures?
The spectrum of the solar corona reveals emission lines that originate in atoms from which many electrons have been stripped. What conclusion can be drawn from this result? The atomic collision energies and hence the gas temperatures are extremely high.
Which of the following is not caused by magnetic field activity on the Sun?
Which of the following is NOT caused by magnetic field activity on the Sun? Convective cells.
Which layer of the Sun has the heat source from the magnetic field?
The fusion in the Sun’s core not only produces light energy that travels up through the radiative and convection zones but it also generates the solar magnetic field. The character of the planets is fundamentally shaped by their experiences of both the heat and magnetic field from the Sun.
Why do sunspots occur on the Sun explain the process occurring within the Sun?
Sunspots are magnetic in nature. They are the places (“active regions”) where the Sun’s magnetic field rises up from below the Sun’s surface and those magnetic regions poke through. … Sunspots are formed continuously as the Sun’s magnetic field actively moves through the Sun.
How do you observe sunspots?
What causes sunspots quizlet?
What causes sunspots? Magnetic fields breaking through the photosphere inhibit gas motion where the field is strong.
What information does the size of a sunspot tell us about the Sun’s magnetic field?
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.
How do magnetic field keep sunspots cooler than the surrounding plasma explain?
How do magnetic fields keep sunspots cooler than the surrounding plasma? … 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 does rapid sunspot growth 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 are solar sunspots?
Sunspots are temporary phenomena on the Sun’s photosphere that appear as spots darker than the surrounding areas. 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.
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.
What do sunspots and solar flares have in common quizlet?
What do sunspots solar prominences and solar flares all have in common? They all have about the same temperature. … Coronal mass ejections and other activity associated with the sunspot cycle can disrupt radio communications and knock out sensitive electronic equipment.
What causes the Sun’s magnetic fields to flip?
The shift is closely tied to the activity of sunspots (also known as active regions) said fellow Stanford solar physicist Todd Hoeksema who runs the university’s Wilcox Observatory. “The magnetic field from active regions makes its way toward the poles and eventually causes the reversal ” Hoeksema told SPACE.com.
How are sunspots linked to climate?
Is Sun Causing Global Warming?
What Happens When Earth’s Magnetic Poles Reverse?
Magnetism | #aumsum #kids #science #education #children
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