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Questions tagged [solar-wind]

Questions about streams of plasma released from the Sun or other stars (stellar winds).

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Would a large coronal mass ejection affect the earth evenley

A very severe corolnal mass ejection in the lines of the Carrington event could potentially disrupt power grids and communications, but would it affect the earth evenly or would the part of the earth ...
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Would a magnetic charge over the Schwinger limit create visual effects in the vacuum of the solar system?

Say, hypothetically, that you use a variation of the Takeyama electromagnetic coil experiment (https://www.space.com/41950-magnet-physics-doors-tokyo.html) to generate a short lived but very extreme ...
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1answer
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Why is the cloud around Eta Carinae shaped the way it is?

According to (german) wikipedia, Eta Carinae has a cloud shaped like two cones with the points at the poles of the star as well as a disk around the equator. These matter clouds are mostly or only ...
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Cause of ~10 minute Oscillations in Low Energy Electron Flux in Earth's Magnetosphere

I am analyzing data from an instrument that measures low energy electron flux at Geo-Stationary orbit. There are sharp oscillations in the particle flux of 30 eV electrons occurring from about noon ...
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3answers
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Will the Sun's solar wind push a permanent magnet out of our solar system?

If you were place a strong permanent magnet into the solar wind, like a 1 inch cube neodymium magnet, would the charged particles of the solar wind colliding with the magnet's magnetic field push the ...
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1answer
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Where will the atmosphere of our Earth go if our sun blows it away completely?

What will happen?Will our atmosphere head to the next gravity dominant body?Will our moon hold a part of our atmosphere or is too weak to hold it?Where all those gases are supposed to go?
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1answer
106 views

Do narrow lines in the spectra of O- and B- type stars always indicate magnetic fields?

I was reading a paper on the differential emission measures of a set of hot O- and B- type stars. As the authors discuss in Section 3 (page 959), two stars, $\tau$ Sco and $\theta^1$ Ori C, have ...
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1answer
113 views

Direction of Earth’s poles relative to the Sun’s movement around the Galaxy

The plane of the solar system is at 63 degrees to the plane of the galaxy, then either the North or South Pole of Earth would be on the ‘leading edge,’ i.e. pointing roughly in the direction of ...
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2answers
121 views

Solar Wind and Asteroid orbital behavior

Can the solar wind affect the orbital elements of a nearby asteroid? I would like to know if solar activity has an effect on the asteroid's orbit or gravitational stability and or can cause a ...
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1answer
77 views

Can the shedding of radiation of stars contribute to the red-shift of the universe?

The sun is losing mass(1.5cm per year) by emitting radiation and the orbits of the planets are widening because of the weakening gravity of the sun. Are most of the stars shedding mass via ...
6
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1answer
116 views

Does the sun blow a bubble into the interstellar medium?

I once read that the solar wind is more or less blowing a "bubble" into the interstellar medium. However, the numbers I found while trying to verify this don't give me a clear picture yet: The ...
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Can the shape and fluctuations of the heliopause be attributed to specific nearby stars and clusters?

The heliopause is where the Solar wind is counter balanced by the particle winds from other stars. This boundary seems to not be spherical and also to fluctuate in shape. Can the shape of the ...
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1answer
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Might someone see changes to the corona during a solar eclipse?

I've seen many pictures of the corona during a solar eclipse, and the structure and delicacy is amazing. Clearly, the appearance would change over time, depending on the fine details of the solar wind ...
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Tracing back OMNI data to the sun

I have been reading the OMNIWeb data documentation in order to clarify one particular question without success. I need to associate each measurement in the OMNI dataset to a moment in time at the sun (...
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1answer
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Can cosmic rays alone produce noticeable aurorae in bodies far away from the Sun?

Aurorae are caused by energetic particles interacting with planetary atmospheres. Part of this flux comes from the Sun (solar wind) while the rest is cosmic radiation. My main question is: could a ...
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2answers
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Why is there a density dropoff in the stellar winds of magnetic O-type stars?

I recently went to a talk on X-ray emissions from stellar winds of O-type stars, and a paper was explored that in turn referenced ud-Doula et al. (2014). Essentially, O-type stars may show strong x-...
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1answer
72 views

Composition and Proton Flux from the Solar Wind

I am taking a class on the space environment and I have a few questions about the solar wind. A number of sources list the composition as (approximately) 4% He$^{++}$ and 96% H$^{+}$. What exactly ...
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1answer
260 views

What is the composition of the Solar Wind?

Is the composition of the Solar Wind known? I'm especially interested in the heavy metals present. Most accounts deny the existence of anything other than electrons, protons, and some alpha particles; ...
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2answers
153 views

Energy carried by solar wind

What are the velocity, mass, and charge distribution of the solar wind. Near the earth within the magnetosphere in the ecliptic Near the earth but outside the magnetosphere in the ecliptic Outside ...
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1answer
2k views

Why do comets appear to have a continuous supply of dust?

Comets orbiting the sun have a tail that points away from the Sun, due to the solar wind. (Strictly speaking, a comet can have both a type I tail - ion tail, and a type II tail - a dust tail. This ...
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2answers
792 views

Rate of Mass Loss from the Solar Wind

This is problem 1-4 from Principles of Stellar Evolution and Nucleosynthesis by Clayton: Assuming at the Earth a characteristic velocity of 400km/s and density of 10amu/cm$^{3}$ for the solar wind, ...
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2answers
254 views

Is solar wind a source of water?

Solar wind may contain some hydrogen and oxygen atoms which is the composition of water, some of them may move to the poles of earth, my question is, is solar wind also a source of water in earth?
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1answer
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Is it accurate to compare comets to clouds and rain?

I'm trying to avoid an opinion-based question, so before I outline the comparison I'm proposing, I will qualify the specific facts that yield this comparison. By focusing answers on the relative ...
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1answer
321 views

What are the Gamma rays and Cosmic rays effects on humans and equipments? [closed]

First of all not to consider me a conspiracy theorist, but isn't landing on the moon a questionable issue? I am really not an expert in astronomy but let's assume that a moon landing has happened. 1- ...
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3answers
748 views

Does the Moon have an aurora?

If the Moon has a magnetic field and can possibly receive solar wind, then does it have an aurora? If Earth has an aurora, and Saturn has an aurora, then could the Moon possibly have an aurora?
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1answer
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Conditions on Hot Jupiters

Hot Jupiters are close to their parent star - after all, that's why they're so hot. Their atmospheres are thought to be slowly blown away by the parent star, and they will eventually become chthonian ...
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2answers
3k views

What is the difference between solar wind and solar radiation?

Is there a difference between solar wind and solar radiation or are they just different ways of describing the same thing?
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1answer
184 views

Source of T Tauri wind?

What particularly causes the T Tauri star to eject the strong bipolar wind which clears the gases around the star?
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2answers
2k views

Why has Venus's atmosphere not been stripped away by solar wind?

This answer on Space Exploration to a question about Mars says that one reason Mars has such a thin atmosphere is because it lacks a magnetic field to protect it from the effect of double solar winds. ...