Flares etc: why do they only exist on stars?

  • Thread starter Sariaht
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In summary, the Earth's magnetic field cannot go "bazooka" because it is primarily made of iron and is focused on protecting us from the sun's flares. These flares are a result of high magnetic fields and plasma reactions. Other planets may not have similar phenomena due to their lack of a rotating body with fusion or a core made of pure uranium.
  • #1
Sariaht
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Why can't the Earth's magnetic field go bazooka!

It's made of iron and it's got poles...
 
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  • #2
arent flares a product of extrememly high magnetic fields, and plasma reactions. Also, our magnetosphere is too bisy protectiong us from the suns flares in order to have its own.
 
  • #3
Perhaps these things that errupts after flares are caused by fusion within a rotating body, causing a flow that changes it's magnetic field, why planets can't have them unless it's core is made of pure uranium or something.
 
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  • #4
No, I meant the corona: Perhaps the corona is caused by fusion within a rotating body, causing a flow that changes it's magnetic field, why planets can't have them unless it's core is made of pure uranium or something.
 
  • #5
What would uranium have to do with anything. The sun is made up of a lot of hydrogen. Wery little uranium.
 

1. Why do flares only exist on stars?

Flares are bursts of energy and matter that are emitted from the surface of a star. They are caused by magnetic reconnection, a process in which the magnetic fields within a star's atmosphere realign and release a large amount of energy. Since only stars have magnetic fields, flares can only occur on stars.

2. How are flares different from solar prominences?

Flares and solar prominences are both solar phenomena that occur on the surface of stars. However, flares are sudden, explosive releases of energy, while solar prominences are more gradual eruptions of material from the star's atmosphere. Flares are also much more energetic and can release up to 10 million times more energy than solar prominences.

3. Can flares be harmful to Earth?

Yes, flares can have a variety of effects on Earth, some of which can be harmful. The most common effect is an increase in the intensity of the aurora (also known as the Northern and Southern Lights) due to the charged particles from the flare interacting with Earth's magnetic field. However, more powerful flares can also disrupt satellite communications and even cause power outages on Earth.

4. Do all stars have flares?

Not all stars have flares, but they are more commonly observed on younger, more active stars. This is because younger stars have stronger magnetic fields and are still in the process of forming, resulting in more frequent and powerful flares. As stars age, their magnetic fields weaken and flares become less frequent.

5. Are flares only limited to a certain type of star?

Flares can occur on a wide range of stars, from small, cool stars known as red dwarfs to massive, hot stars. However, they are most commonly observed on stars that are similar in size and temperature to our Sun. These stars, known as main sequence stars, have a stable core and active outer layers, making them more prone to flares.

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