A new state of Venus's ionosphere

Venus. Photo courtesy of NASA

Observations from NASA's Pioneer Venus orbiter, which reached Venus in 1978, suggested that Venus's ionosphere had two states: a magnetized state with a large- scale horizontal magnetic field and an unmagnetized state with no large-scale magnetic field but with numerous small-scale thin magnetic structures known as flux ropes. Venus's ionosphere was observed to be in the unmagnetized state most of the time, but strong solar wind pressure shifted it to the magnetized state.

Now, using magnetic field observations made in 2008 and 2009 from the 's Venus Express, Zhang et al. report a third state: a magnetized state with giant flux ropes. The giant flux ropes, which form quite often, have strong magnetic fields and diameters of hundreds of kilometers.

They are considerably larger and have stronger magnetic fields than the flux ropes that were seen during the unmagnetized state. Although giant flux ropes have previously been seen in Venus's magnetotail, the authors believe this is the first observation of the phenomenon in Venus's . It is not yet known how the giant flux ropes form.

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More information: "Giant Flux Ropes Observed in the Magnetized Ionosphere at Venus" Geophysical Research Letters, doi:10.1029/2012GL054236 , 2012
Journal information: Geophysical Research Letters

Citation: A new state of Venus's ionosphere (2012, December 27) retrieved 23 August 2019 from https://phys.org/news/2012-12-state-venus-ionosphere.html
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Dec 27, 2012
The giant "flux ropes" are in fact electric birkeland currents. The currents are formed due to the interaction of a charged body (Venus) within the Sun's electrically charged plasma environment. Those same "flux ropes" have been found on all of the planets and many moons within the solar system in which we have looked.

Dec 27, 2012
Any dolt would realize that a magnetic flux rope is not the same as a set of currents along geomagnetic field lines, and that EU/PC ideas are buffonery. Flux ropes are complex structures, for example when they appear in the corona (needs both CMD and magnetofrictional modeling). [ http://www.uksolp...jection/ ]

Any observations of "Birkeland currents" in astrophysics are strangely absent. Again, pure buffonery is implied.

Dec 28, 2012
That same dolt should know that magnetism doesn't exist without a current flow, and those "twisted bundles of magnetic fields" are the magnetic fields created by the current flow. Answer this Mr. Buffoon Larsen, what do you propose creates those "twisted bundles of magnetic field" if it's not electric currents? Maybe gigantic invisible Hawking bar magnets? What magical metaphysical process do you propose? Why exactly, in your myopic buffoonery, do you propose that the plasma which pervades space would behave contrary to laboratory plasma? What exactly do you propose the twisted filamentary structures confined by magnetism is if there is no current? It's no doubt you whole-heartedly believe in magnetic reconnection as described in the website you linked, I'll leave you with a quote from the man who developed MHD which those buffoons clearly don't understand.

"Magnetic reconnection is pseudoscience" Hannes Alfven

And so too are the metaphysical beliefs of GR and BB hypotheses.

Dec 29, 2012
oi, so now its gr too cantdrive? give me a fucking break. you think and act like you are so smart but your posts all show otherwise,

Dec 30, 2012
I love being in the superior company of cool headed scientific mentalities with all that suave logic and open minded rationality but sometimes one falls behind in the latest jargon.

Dolt buffoon buffoonery "give me a fucking break" - where might one find the scientific definiton of these terms?

Dec 31, 2012
Dolt buffoon buffoonery "give me a fucking break" - where might one find the scientific definiton of these terms

Dolt - is the measure of intellectual potential accross a distance. It's equal to a tWatt divided by a current.

Buffoon - is an elementary component in many alternative scientific theories.

Buffoonery - is, of course, the applied science or engineering of buffons

Give me a fucking break - is a historical term that goes back to the early days of buffoonery, similar to the whole Eureka thing with Archemedes. It doesn't translate well from its original language, pig-latin.

I hope that helps

Jan 03, 2013
No, Superior would have gotten us Anti-Gravity a few decades ago. Just sheeples going about their daily, mainstream educated grinds. Nothing more.

It's quite obvious the ego card trumps any real "Science" these days.

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