beach
New Member
Posts: 14
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Post by beach on Dec 22, 2011 23:59:58 GMT
It is sent to the e-mail address provided on your profile, it will be there within a matter of minutes.
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bigbud
Level 3 Rank
Posts: 180
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Post by bigbud on Dec 29, 2011 22:54:53 GMT
leif what is the most geoactive position at the Sun? 30 degrees west? 45? BB  |
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Post by lsvalgaard on Dec 31, 2011 1:22:05 GMT
leif what is the most geoactive position at the Sun? 30 degrees west? 45? BB actually 0 degrees, depending... If a CME lifts off at 0 degrees, it will be heading straight for us. The high-energy particles from a flare follows the magnetic field lines so 45W would be best for them [and worst for us]. |
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Post by justsomeguy on Dec 31, 2011 15:01:09 GMT
So what is.the.expectation for this.flare? I know.the.magentic direction matters also, bit I admit. I need that explanation again.
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Post by lsvalgaard on Dec 31, 2011 18:52:09 GMT
So what is.the.expectation for this.flare? I know.the.magentic direction matters also, bit I admit. I need that explanation again. The M-flare from 1389 is on the Eastern half of the disk, so we'll not get any energetic particles along the field lines [because that location is not connected to us]. We'll of course see the UV and X-ray response as that is just light spaceweather.com/ |
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beach
New Member
Posts: 14
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Post by beach on Jan 10, 2012 3:10:55 GMT
Dr. Svalgaard, I would like to publicly thank you for the great help you have been to me with my research and would love to possibly work with you this summer on a different research project. If I get anywhere with the project, I will attribute it to your great help in finishing it up. Sincerely, thank you.
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bigbud
Level 3 Rank
Posts: 180
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Post by bigbud on Jan 16, 2012 0:06:50 GMT
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Post by lsvalgaard on Jan 16, 2012 11:39:48 GMT
it is low because the solar wind speed is low as it often is near solar maximum. A similar thing happened e.g. in 1980. |
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Post by kalohux on Jan 18, 2012 3:03:59 GMT
Interstellar cloud/ local fluff/ photon belt
I would like to know where in time aspect we are in regard to this cloud.
Will it take years or thousands of years before our solar system enters the hotter parts of this cloud?
Is it even real?
What implications could it have on the planets and the sun?
I have searched on the internet for answers but there are only doomsdayers talking about this subject.
Since I regard this site as a serious source of information, I would like to hear your oppinions.
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Post by lsvalgaard on Jan 18, 2012 5:17:01 GMT
Interstellar cloud/ local fluff/ photon belt I would like to know where in time aspect we are in regard to this cloud. Will it take years or thousands of years before our solar system enters the hotter parts of this cloud? Is it even real? What implications could it have on the planets and the sun? I have searched on the internet for answers but there are only doomsdayers talking about this subject. Since I regard this site as a serious source of information, I would like to hear your oppinions. thousands of years. |
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Post by Bob k6tr on Jan 18, 2012 19:14:07 GMT
it is low because the solar wind speed is low as it often is near solar maximum. A similar thing happened e.g. in 1980. The number of Coronal Holes has been much lower than we have seen at the peak of the cycle when compared to the last several cycles. Also the size of the Holes have been pretty anemic. |
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Post by lsvalgaard on Jan 18, 2012 22:27:10 GMT
it is low because the solar wind speed is low as it often is near solar maximum. A similar thing happened e.g. in 1980. The number of Coronal Holes has been much lower than we have seen at the peak of the cycle when compared to the last several cycles. Also the size of the Holes have been pretty anemic. it would be helpful if you could find a plot of coronal holes [number and sizes] over the last several cycles. I don't know of any such plot and would be interested in seeing one. |
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Post by Pooh on Jan 19, 2012 6:29:53 GMT
Would it not also be of interest to investigate whether the Coronal Holes were of polar or of lower latitudes? I thought I read somewhere that solar wind speed varies with latitude. Of course, my recollection could be mistaken.
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Post by lsvalgaard on Jan 19, 2012 12:15:22 GMT
Would it not also be of interest to investigate whether the Coronal Holes were of polar or of lower latitudes? I thought I read somewhere that solar wind speed varies with latitude. Of course, my recollection could be mistaken. It does, but not in a simple way. As long as there are coronal holes over the poles [which is most of the time] the high-latitude solar wind is fast. |
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Post by justsomeguy on Jan 19, 2012 15:28:47 GMT
Anything exciting at the meeting in Japan?
Any news on the publication of the papers from the summer meeting that caused all the press?
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