All Questions
Tagged with solar-wind magnetic-fields
25 questions
2
votes
0
answers
37
views
Can the rotation of the liquid layer of the core around the solid core stop a planet's overall spin rotation?
In some planets like Earth or Jupiter there is an external liquid or molten layer of the core which rotates around a more deeper solid core (partly due to the planet's spin itself). This dynamo effect ...
- 2,878
2
votes
1
answer
76
views
How can auroras be visible at lower latitudes when a strong solar wind hits Earth?
Auroras are a product of electrically charged particles hitting Earth's atmosphere at the poles, where the geomagnetic field is weaker (where magnetic lines originate).
How can a strong solar wind ...
- 183
5
votes
2
answers
133
views
Is it possible to predict the appearance of auroras?
Yesterday I saw online a lot of people seeing auroras both in the North and in the South of the globe. Unfortunately, I wasn't one of these people, and this got me curious about how much we can ...
- 23k
0
votes
1
answer
68
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Would the Earth's magnetosphere be more effective against the Sun's solar wind if the planet's rotation was faster?
As far as I understand it, the Earth's magnetic field rotates around the planet's axis at the same rotational velocity as the planet's rotational velocity around its axis.
From what I understand about ...
user300400
1
vote
1
answer
140
views
Aurora Borealis
As we know that during a solar flare, a large number of electrons and protons are ejected from the sun.
Some of them get trapped in the earth’s magnetic field and move in helical paths along the
field ...
- 21
0
votes
1
answer
38
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Are switchbacks travelling Alfven waves?
My question is are the so-called Switchbacks observed in the solar wind traveling Alfven waves? If not what are the differences between them?
- 500
4
votes
1
answer
57
views
How much of the Sun to not evaporate is due to gravity and how much due to magnetism?
As protons and electrons on the sun 'surface' have high kinetic energy something obviously should stop them to go away.Its gravity is very high compared to planets but is this enough as magnetism also ...
- 1,835
1
vote
1
answer
31
views
A technique to distinguish the mean magnetic field from the fluctuations in the solar wind?
My question is:
Is there a technique to distinguish the mean magnetic field from the fluctuations in the solar wind?
Thanks
- 500
1
vote
1
answer
64
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Do switchbacks occur in the radial direction of the solar wind magnetic field?
My question is:
When we are talking about switchbacks, do we mean switchbacks in the radial component of the magnetic field or in the total magnetic field?
- 500
55
votes
5
answers
8k
views
What is happening when magnetic field lines snap or break?
In discussions of sun spots and auroras on Earth, magnetic field lines are often described as "snapping" or "breaking", with the result of releasing charged particles very ...
- 1,101
1
vote
1
answer
100
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Radiation and windows for building of a great project in a low Earth orbit: reference request or exercise as a ficticious need to build it
I know about the existence of certain windows for which it is more suitable to launch a probe for the exploration of a cellestial body in our Solar System (see the Wikipedia Launch window). I wondered ...
0
votes
1
answer
59
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Best numerical simulations of Sun's magnetic field
I was trying to find some simulations of the Sun's magnetic field. Which ones are the most accurate to date?
3
votes
1
answer
95
views
Will pyrolytic carbon/graphite repel the Sun's solar wind?
Since a moving charged particle has a magnetic field, as well as an electric field, and pyrolytic carbon/graphite repels an external magnetic field, would this mean that an object made out of ...
user217618
6
votes
1
answer
167
views
Why the geomagnetic field become stronger when solar wind is stronger?
The following description is from the webpage of Niels Bohr Institue's Former Centre for Ice and Climate
The Earth reacts to the solar wind by increasing the strength of the shielding magnetic ...
- 233
3
votes
1
answer
491
views
Distortion of the Earth's magnetic field due to solar winds?
Why and how do the solar winds distort the Earth's Magnetosphere to form a drop like shape facing away from the Sun?
6
votes
2
answers
790
views
Shape of Earth's magnetic field
Why earth's magnetic field is compressed on day side and extended like tail on night side, like this
I know that it's due to solar wind but not how that compression and extension happens.
- 153
2
votes
1
answer
100
views
Should there be a difference in strength or otherwise between daytime and nighttime auroras?
Or do they have exactly the same characteristics?
I.e. if I observe them in a place where it’s dark 24 hours.
- 25.3k
6
votes
2
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2k
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How would the Aurora light on Earth look like if there wasn't a magnetic field?
Here are some pictures of the aurora light.
The beautiful phenomenon of Aurora is a well-known one, seen in the northern (Aurora Borealis) and southern parts (Aurora Australis) of the globe. Here is ...
3
votes
4
answers
2k
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Do force fields physically exist?
Or are they just a region of space where the forces are acting around its source, for example a magnet? But if they are just regions, and not physical objects, then how can the Earth's magnetic field ...
user134652
4
votes
2
answers
7k
views
How strong is Earth's magnetic field in space?
I've been searching around Google and Youtube about the strength of Earth's magnetic field. By the help of wikipedia, I have found out that it's magnitude is 25 to 65 microtesla or 0.25 to 0.65 Gauss ...
- 41
2
votes
1
answer
479
views
differences of Aurora Borealis (North) vs. Aurora Australis (South)
I was wondering about the differences between the Northern vs. Southern lights: will one pole collect the positive charges, and the other the negatives? I know that the solar wind is composed mainly ...
- 21
5
votes
3
answers
4k
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Why do charged particles follow magnetic field lines?
This may seem like a dumb question, but I can't think of the answer. The context I am curious about is the solar wind. Specifically particles flowing out of coronal holes and following the magnetic ...
- 153
9
votes
2
answers
3k
views
Earth's magnetic field shields us... from what threat?
This is a nice artistic picture of the magnet field of the earth, shielding us from the solar wind. (source)
Wherever you look, it is stated that without our shield, life would not be possible on ...
- 298
2
votes
0
answers
174
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Aurora borealis forecasting, some technical details
I have an idea to make a software tool (with some really user friendly interface) for predicting auroras on any place on Earth. I do know some physics behind the phenomenon, but only basics, like it ...
- 121
0
votes
2
answers
205
views
Coronal Mass Ejection and its effect on Earth's Orbit
Do CMEs (Coronal Mass Ejections) have an effect on Earth's Orbit around the sun? Given the the Earth and Sun are essentially two large magnets, one in orbit around the other. If so, how much of an ...
- 135