Huge coronal hole is sending solar wind our way

Huge coronal hole is sending solar wind our way
SDO AIA 211 image showing a large triangular hole in the Sun's corona on March 13

An enormous triangular hole in the Sun’s corona was captured earlier today by NASA’s Solar Dynamics Observatory, seen above from the AIA 211 imaging assembly. This gap in the Sun’s atmosphere is allowing more charged solar particles to stream out into the Solar System… and toward Earth as well.

Normally, loops of magnetic energy keep much of the Sun’s outward flow of gas contained. Coronal holes are regions — sometimes very large regions, such as the one witnessed today — where the magnetic fields don’t loop back onto the Sun but instead stream outwards, creating channels for solar material to escape.

The material constantly flowing outward is called the solar wind, which typically “blows” at around 250 miles (400 km) per second. When a coronal hole is present, though, the wind speed can double to nearly 500 miles (800 km) per second.

Increased geomagnetic activity and even geomagnetic storms may occur once the gustier reaches Earth, possibly within two to three days.

The holes appear dark in SDO images because they are cooler than the rest of the corona, which is extremely hot — around 1,000,000 C (1,800,000 F)!

Here’s another image, this one in another AIA channel (193):

Huge coronal hole is sending solar wind our way
AIA 193 image of the March 13 coronal hole

Keep up with the ’s latest activity and see more images on NASA’s SDO site here.


Explore further

Image: Holes in the Sun's corona

Source: Universe Today
Citation: Huge coronal hole is sending solar wind our way (2012, March 14) retrieved 17 July 2019 from https://phys.org/news/2012-03-huge-coronal-hole-solar.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
0 shares

Feedback to editors

User comments

Mar 14, 2012
Woah....crazy....does it have anything to do with cosmological alignments ? I don't usually pay any attention those things, but I noticed that there are triangles forming by the alignments lately.

Is it time for a party ?

http://imgupld.lu...BFE5.jpg

Mar 14, 2012
This comment has been removed by a moderator.

Mar 14, 2012
It does look like a long triangle. They don't say, in this article if this has happened before to this magnatude, and\or how often. Is this worse than what has happened before? Does this mean the Sun is doing something worse than usual? Should we worry? Not that it would matter if this is going to be bad :), nothing you can do, unless you are very rich and can dig a very deep hole, and biuld a self sustained fallout shelter. :)

Mar 14, 2012
Woah....crazy....does it have anything to do with cosmological alignments ?
It could have. In dense aether model the streaks of dark matter strengthen just along lines of massive body alignments, being formed with shielding of gravity shielding. The do concentrate neutrinos into itself and neutrinos may slow down the thermonuclear fusion (and accelerate the radioactive decay). At any case, they could affect the circulation of solar plasma significantly with changing the location of centre of mass of solar system (the Coriolis force is stirring it in the similar way, like the tornadoes at atmosphere). When the centre of mass appears beneath the surface of Sun, this circulation will stop. The solar eclipses and planetary conjunctions may be more relevant for terrestrial life, than ancient astrologers ever believed.

Mar 14, 2012
This is how the planets will appear next day.. http://i134.photo...tion.png In general, the contemporary physics is very good in description of deterministic phenomena mediated with transverse waves, but it completely ignores the dual part of reality, mediated with longitudinal waves - just because their spreading appears indeterministic from perspective of light waves.

Mar 14, 2012
In addition, there exists a correlation between solar eruptions and earthquakes. http://www.muvi.c...rcWt7pXY This connection may not be so nonsensical, as it appears. I can imagine, the large solar eruption change the distribution of solar wind particles and neutrinos across solar system, which could affect the density and distribution of magma at the Earth mantle. In this way the Sun and planets are connected mutually beneath their surfaces at distance. http://www.ufo-bl...are.html
We are surrounded with sparse but heavy atmosphere of charged particles interacting at distance, the perturbation of which may affect the surface of massive objects accordingly. The charged particles of ionosphere have significant inertia too. The sudden changes of their distribution with intensive solar flares could induce the tectonic instability as well. The thickness of Earth crust is quite low and everything beneath it is in fluid state.

Mar 14, 2012
Unprecedented solar eruptions, claimed massive auroral displays, and no effects on circuitry, satellites or equipment. Yet they keep diverting flights to "avoid the solar wind". In addition to depraving the weather, among other things, chemtrail chemicals seem to be making the air less able to support aircraft. Airlines are doing everything from refusing to fly because a young man has baggy jeans below his underwear to "overshooting" a destination because the pilots were "pre-occupied" to avoid flying into patches of this unnatural atmosphere. These "flares" seem just an excuse for diverting flights due to a large number of such patches up there.

Mar 15, 2012
Am i the only one that thinks the photo's above look like the "Eye of Sauron"??????

Also, such an increase in solar radiation will have what effect on global climates?

Mar 15, 2012
You guys are out of your collective minds, mostly because you don't know much about even the basics of astronomy.

Coronal holes are common, and not anything to fear. In fact, an area with a coronal hole is much less likely to have a coronal mass ejection event, since there aren't many coiled magnetic loops which can burst and toss out coronal mass.

Solar wind isn't anything to fear, and it isn't the same as a CME. Additionally, the sun has been and is still in an almost unprecedented state of low activity. The peak of the current solar cycle #24 is predicted to only reach levels about equal to the low points of some recent cycles. The chance of any damaging solar event in the next ~30 years is probably the lowest it has been since the Maunder Minimum. Granted, it is still a posibility game, but relative rates are associated with the activity level of Sol.

Chem Trails? Really? Do you watch TV shows about ghosts too? Planetary alignments? Sacrifice a goat, and it'll be okay.

Mar 15, 2012
Also, such an increase in solar radiation will have what effect on global climates?


You need to read up at least a little bit before forming opinions. You are so far off that I don't know if it is worth explaining anything to you. I doubt you have enough basic knowledge to understand, because you obviously don't even know the meaning of the basic terminology.

Just let me say that solar wind does not equate to solar radiation. You need to look up the terms man. All of our major solar indicators have been at near record lows. The NOAA SWPC (space weather prdiction center), probably the world's leading solar experts, just released the monthly report for March. Although we are nearing the peak of solar cycle 24, the peak will probably top out near the low point of all recent cycles. If this happens, we don't know what the climate result will be, but the last time anything similar happened, in the 70's, it got really cold. Will that happen again? Don't know yet.

Mar 16, 2012
Uh, kaasinees the correct word, without the porn spelling would be "coming".

Thanks for the rational and educational post, Gswift7.

"chemtrail chemicals, depraving weather,unnatural atmosphere, The charged particles of ionosphere have significant inertia too. The sudden changes of their distribution with intensive solar flares could induce the tectonic instability as well." All this and a source that is a theologian.

Wow, just wow.

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more