Coronal mass ejection arriving during a solar eclipse

In summary, the question is whether a CME passing through the Moon's electrically conducting interior would affect the Earth's magnetic field differently than one that did not go through the Moon. However, the Moon's small iron core and lack of an electromagnetic dynamo make it unlikely that it would have a significant impact on the charged particles passing by. Additionally, the CME must be "magnetically connected" to the Earth in order to affect it.
  • #1
Zodiakos
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http://img407.imageshack.us/img407/9447/duo258.png [Broken]​

Would a CME passing through the Moon's electrically conducting interior affect the Earth's magnetic field any differently than a CME that had not gone through the moon?
 
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  • #2
Zodiakos said:
Would a CME passing through the Moon's electrically conducting interior...
The middle initial "M" in CME is short for "mass". Massive particles don't pass through the Moon, let alone get close to its small iron core.

The Moon essentially has no electromagnetic dynamo, so it's meager magnetic field isn't going to do much to the charged particles that pass close by the Moon.
 
  • #3
Your picture is for a solar eclipse - so it is over simplifying the situation and exaggerating the size of the lunar shadow on Earth. If memory serves, the shadow is less than 1% of the surface area of the Earth.

In addition, CMEs travel along the magnetic field lines, not along line of sight (as a photon would). So the CME has to be what is called 'magnetically connected' to the Earth for it to affect us.

As DH explained, the Moon does not affect the CME appreciably at Earth.
 

1. What is a coronal mass ejection (CME)?

A coronal mass ejection is a large release of plasma and magnetic fields from the Sun's corona. This can happen during a solar flare or other intense solar activity, and can have a significant impact on Earth's magnetic field and atmosphere.

2. Can a coronal mass ejection arrive during a solar eclipse?

Yes, it is possible for a coronal mass ejection to arrive during a solar eclipse. However, this is not a common occurrence as CMEs typically follow a more random and unpredictable pattern.

3. How does a coronal mass ejection during a solar eclipse affect the Earth?

A coronal mass ejection during a solar eclipse can cause disruptions in Earth's magnetic field and can also lead to auroras (also known as the Northern and Southern Lights). In extreme cases, it can also interfere with satellite and communication systems.

4. Are there any potential dangers associated with a coronal mass ejection arriving during a solar eclipse?

While a CME arriving during a solar eclipse can cause some disruptions, there are no known direct dangers to human health. However, it is important to monitor and prepare for any potential impacts on technology and infrastructure.

5. How do scientists study and predict coronal mass ejections?

Scientists use a variety of tools and methods to study and predict coronal mass ejections, including space-based observatories, ground-based telescopes, and computer simulations. However, due to the complex nature of CMEs, predicting their exact timing and impact remains a challenge.

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