Astronomer's monitor more huge solar filaments.

reply to post by ElectricUniverse


I meant in regards to the Hyder Flare, that 'threat' if you will, fizzled out, not any other activity. The whole hype surrounding the Hyder Flare was a lot of hooplah over nothing in the end. I could of explained that better i suppose but i was in a rush at the time and responded as if the question was surrounding the HF. In the end none of the CME's were directed at Earth anyway.
That is not to say filaments don't cause any other solar events, and this one is more than likely to as well.

Originally posted by pazcat
reply to post by wayaboveitall

 

Well, if you go back up the page to Chadwickus's post he has a link on the 1859 solar storm, the largest one ever known. And considering that did not sterilize anybody, coupled with the probability that prior to solar record keeping there have been more large and possibly larger events than that and nobody has been sterilized. I do not think it something to concern yourself with.

With our current infrastructure there are more real world issues we would face with power and communications issues.
And it seems unless the Hyder Flare directly relates to a CME then there is really not to much to be concerned about either.

LOL, I didnt mean sexually/reproductively steralised, I meant the earth burnt clean by a solar flare, as in the movie scenario.

reply to post by wayaboveitall


I guess you can tell i haven't seen the movie then.
Does it matter too much? Either way it isn't very likely to happen.

Also look at SOHO, did they downgrade the satellite to a cheap digital camera sure the quality was much better before.




SOHO

reply to post by NotAgain


Star for ya,

Those pictures in the yellow hue are amazing. Too bad we don't get to see what their real photo's look like that NASA uses or DoD, I bet they are way better.

Hyder Flares are pretty unheard of so thought I would post the only information that seems to be floating around the net.

Hyder Flares

1. What is a Hyder flare?

Flares are intense brightenings that occur in the solar chromosphere. Flares are generally observed from Earth using narrow band filters, typically with a bandwidth of less than 0.1 nm, and often centred on the Hydrogen-Alpha wavelength of 656.3 nm. (Flares also have counterparts, that is, sudden outbursts, in the radio and X-ray spectrum).

Most flares occur around active regions associated with sunspot groups. However, occasionally a flare (sudden brightening) is observed well away from an active region or sunspot group. These flares are invariably associated with the sudden disappearance of a large (thick, long, 'bushy') dark solar filament, and are termed Hyder flares.

2. Why are Hyder flares so named?

Max Waldmeier wrote a paper in 1938 which described the phenomenon of suddenly disappearing filaments (disparition brusque), and mentioned that these can be associated with flare-like brightenings, but it was left to Charles Hyder to postulate the first comprehensive mechanism for the such flares.

Following on work from his doctoral thesis with the University of Colorado in Boulder (1964), Hyder published two papers in the second volume of the journal Solar Physics (1967) in which the mechanism by which Hyder flares might occur was discussed in detail. Hyder was then on the staff of the (US) Air Force Cambridge Research Laboratories at the Sacramento Peak Observatory in New Mexico.

It was these papers in Solar Physics by which Hyder's name became associated with the flares in question, even though he was by no means the first to observe them.

3. What are the characteristics of Hyder flares?

As previously mentioned, the name Hyder flare is given to a flare that occurs away from an active region or sunspot group and that is associated with the sudden disappearance of a dark filament. The appearance of these flares can range from a string of bright knots on one or both sides of the filament (or rather, the position previously occupied by the filament, sometimes called the filament channel), to a single or double ribbon flare. The ribbons are parallel to the filament channel. If only one ribbon is present, it will lie to one side of the channel, whereas if two parallel ribbons occur, one ribbon will lie on one side of the filament channel, and the other ribbon will lie on the opposite side.

One interesting characteristic of Hyder flares is that they usually develop or rise to maximum brightness much more slowly than do the more common flares associated with active regions. The larger Hyder flares may take 30 to 60 minutes to rise to a peak intensity, and then they may last for several hours. Although they may attain a large area, they usually have a relatively low intensity. Thus, classifications for a large Hyder flare may read 2F, 2N or possibly even 3F. This contrasts to an active region flare in which 3F is very rare. An active region flare that attains sufficient area to put it into the importance class 3, will invariably have either a Normal or more usually a Brilliant brightness classification.

X-ray flares and radio (microwave) bursts associated with the optical Hyder flare, are also generally long lived phenomenon and are classified as the gradual rise and fall type of event (in contrast to the impulsive and complex events associated with large active region flares).

Generally Hyder flares are not associated with energetic particle emission or geomagnetic storms (implying that they may not be associated with a coronal mass ejection). However, this is not always the case, as a large halo CME observed by the LASCO solar coronagraph on board the SOHO spacecraft was most definitely associated with a Hyder flare (2N/M1) observed on 12 September 2000. This same complex also appeared to have produced energetic protons at geosynchronous orbit with energies in excess of 100 MeV, and in substantial numbers at energies of 10 MeV. It is believed that the sudden storm commencement observed at 0450UT 15 September, and the subsequent minor geomagnetic storm was produced by this particular CME.

4. What produces Hyder flares?

Hyder's explanation of the flare type now named after him depended on the observational evidence that (1) often the flare was a parallel ribbon flare with one ribbon each side of the filament channel, and (2) that geomagnetic storms were not associated with these flares. This led to the speculation that the filamentary material was not ejected far into the corona, but in fact fell back to the chromosphere producing the flare.

Stable or quiescent filaments are believed to lie in and along a magnetic trough. It is thought that the sudden disappearance of such a filament is due to a reconfiguration of the field. In essence, the magnetic trough becomes a magnetic ridge (the bottom of the trough elevating in a period of tens of minutes to become the peak of the ridge). In this process, the filamentary material (cooler gas) is thought to be accelerated into the corona. Hyder's explanation is that, in the case of the Hyder flare, some or even most of the filament material, instead of suffering acceleration and ejection, falls down the sides of the magnetic ridge and interacts with the lower chromospheric material producing the flare. If the infall process is symmetrical, then the double parallel ribbon flare will result, if asymmetrical, then only one ribbon results. If the infall is sporadic, or the material insufficient, then only bright knots of flare are produced. Hyder did calculations to show that the kinetic energy of the infalling material should be sufficient to provide the required flare energy release observed.

More info here Link

reply to post by NotAgain


Thanks for posting the extra information and pictures.

reply to post by pazcat

Indeed.

There was very little geomagnetic activity before, during, and after the Chile earthquake.
www.swpc.noaa.gov...

The solar wind was very calm.
www3.nict.go.jp...

She looks to be very active today.

reply to post by Karlhungis


When posting the link to the latest SOHO image you really need to save the image to your PC and them host it on a Image hosting site. The SOHO images update at regular intervals throughout the day, so somebody clicking on the image may see something else.

reply to post by NotAgain


Good point, just noticed that. Thanks.

Hmmm nice.

I think it will create quite a substantial CME.

I just hope it fires in some other direction than us.
Our weakening magnetosphere.
Mad scientists blasting holes in our atmosphere with ionospheric heaters.
The timing would be ironically perfect.

I have been checking periodically all day to see if it had collapsed or broke up, nothing yet it seems.
My guess is something will probably happen when I'm not online.

Don't forget that before the Haiti earthquake there where about 3 or 4 sunspots active on the sun that produced a solar flare before the earthquake.

reply to post by muse7

Don't forget that before Chile earthquake the sun was doing nothing in particular.

reply to post by Phage


Yea most of the Action was on the far side of The Sun, I like many others come to the conclusion that CME contribute to Earthquakes but after much research I know it's a very very very slim possibility.

I am more in favor of Gamma Rays/Gravity Waves, but still thats only a small possibility.

here's the latest SOHO image:

[atsimg]http://files.abovetopsecret.com/images/member/c54cdedde847.jpg[/atsimg]

this thing is flamin'!

[atsimg]http://files.abovetopsecret.com/images/member/ff65c3e7d60a.jpg[/atsimg]



[edit on 9-3-2010 by DarkspARCS]

reply to post by DarkspARCS


That is what the sun looked like in the gif when the last filament collapsed. A nice bright buildup. Interesting. So, looking at the SOHO image of the sun, am I correct in assuming that center of the image would be the area of the sun that is pointing directly at the earth? Or is the image taken from a different angle?

reply to post by Karlhungis

SOHO is in a "halo" orbit between the Sun and the Earth (about 1 million miles from Earth). Not quite exact at all times, but pretty much a straight shot.


[edit on 3/9/2010 by Phage]

Latest lc3 image:

[atsimg]http://files.abovetopsecret.com/images/member/92a422964bf7.jpg[/atsimg]

Does anyone notice the stream in the bottom left hand corner coming from the sun?

What is that?

If it's what I believe it is, WOW - something just got fried!! and I mean fried bad!

Imagine if that shot right at Earth...