Problems With Magnetic Reconnection

[jonesdave116]

MHD is wrong.

Though they (mainstream) cling desperately to the notion of reconnecting field lines because MATH!

Ahh, DOUBLE LAYERS (an electric field).

Reconnection is observed. Exploding DLs are not. And you might want to tell Alfven that he was a fraud for accepting his Nobel!

 

[jonesdave116]

JD116, where does the energy come from for particle acceleration in MRX?

Collapsing/reconnecting magnetic fields?

God! Pixies! Where the hell do you think it comes from? The conversion of magnetic energy to kinetic energy, which causes an increase in thermal energy! Where the hell else would it come from? As observed.

 

[jonesdave116]

See MM gave it a red hot crack.

Funnily enough, was proven correct!

Ahh, the ELECTRIC FIELDS!

MM was never been shown to be right about anything. He is not even qualified in anything relevant. To say he was scientifically challenged would be understating the fact by orders of magnitude.

 

[Sol88]

God! Pixies! Where the hell do you think it comes from? The conversion of magnetic energy to kinetic energy, which causes an increase in thermal energy! Where the hell else would it come from? As observed.

Knee slapping howler mate.

Where ya plasmoids!

 

[Sol88]

Reconnection is observed. Exploding DLs are not. And you might want to tell Alfven that he was a fraud for accepting his Nobel!

Gets better and better...

Needed that belly laugh this morning, cheers!

 

[Sol88]

Don’t you believe the science?

MRX is just the turbulent breakup of current SHEETS. This forms PLASMOIDS.

Jd116, what’s a plasmoid? Regale me with your immense knowledge. Must hurt to keep it all bottled up.

 

[tusenfem]

MRX is just the turbulent breakup of current SHEETS. This forms PLASMOIDS.

And as usual you are completely wrong with your insistence of the one-solution "plasma physics". (with pp in parenthesis because you don't do pp, you just do buzzwords).
Creating a plasmoid is A possibility from MRX, it is not THE result, as you can clearly see from all the papers on reconnection in e.g. the Earth's magnetotail.

Current sheets in space plasmas are created by magnetic fields, not the other way around.

Magnetic fields have a tension:
http://latex.codecogs.com/gif.latex? {\bf T}_m = \frac{({\bf B} \cdot \nabla) {\bf B}}{\mu_0},

and magnetic fields have an energy:
http://latex.codecogs.com/gif.latex?E_m = \frac{B^2}{2 \mu_0}

Through the magnetic tension, the magnetic energy is converted to particle energy (acceleration).

So-called exploding double layers only make sense at the location where Alfvén, sort-of, observed them, and that was at the power brakers at a electric power station. When the connection is cut, there is a discharge through the air (like lightning) and there one can have the creation of a double layer and there is an "explosive"-like ending to the discharge, when the gap gets too larged.

 

[jonesdave116]

Gets better and better...

Needed that belly laugh this morning, cheers!

Reconnection is observed. And Alfven got his Nobel for MHD. Learn to read.

 

[jonesdave116]

Don’t you believe the science?

MRX is just the turbulent breakup of current SHEETS. This forms PLASMOIDS.

Jd116, what’s a plasmoid? Regale me with your immense knowledge. Must hurt to keep it all bottled up.

Lol. Learn physics. Tusenfem just explained how you have got everything bass-ackwards, due to not having a clue what you ate talking about. Instead of your crappy understanding of what MR is, perhaps you should link to a paper that shows what you are talking about? Hint: no such papers exist.

 

[jonesdave116]

Knee slapping howler mate.

Where ya plasmoids!

What the hell have plasmoids got to do with anything? You need particle acceleration. Which is what MR provides. As observed. Denying something that is observed to occur is the typical behaviour of creationists and various other science denying crackpots. Learn physics.

 

[Sol88]

What the hell have plasmoids got to do with anything? You need particle acceleration. Which is what MR provides. As observed. Denying something that is observed to occur is the typical behaviour of creationists and various other science denying crackpots. Learn physics.

Read up champ!

Microwave imaging of quasi-periodic pulsations at flare current sheet

The sun, an ordinary star closest to us, is a place where flares with QPPs appear frequently. In the standard flare model, magnetic reconnection plays an important role in releasing energy from the coronal magnetic field, ejecting plasmoid and accelerating electrons. After escaping from the reconnection region, those energetic electrons propagating along magnetic field lines will induce microwave emissions by a gyrosynchrotron mechanism. Thus, the temporal variation of microwave emissions is closely related to the process of electron acceleration. Once the magnetic reconnection happens quasi-periodically, the electron acceleration will also be quasi-periodic and QPPs will be generated.

Poor jd116. Do you even know what a plasmoid is, jd116?

I don’t. Except for Bosticks woo woo. Let’s find out together, ay?

Seem important in the majority of space plasma’s.

As the ELECTRIC UNIVERSE has stated.

Best go read up on what a plasmoid is.

 

[Sol88]

And as usual you are completely wrong with your insistence of the one-solution "plasma physics". (with pp in parenthesis because you don't do pp, you just do buzzwords).
Creating a plasmoid is A possibility from MRX, it is not THE result, as you can clearly see from all the papers on reconnection in e.g. the Earth's magnetotail.

Current sheets in space plasmas are created by magnetic fields, not the other way around.

Magnetic fields have a tension:
http://latex.codecogs.com/gif.latex? {\bf T}_m = \frac{({\bf B} \cdot \nabla) {\bf B}}{\mu_0},

and magnetic fields have an energy:
http://latex.codecogs.com/gif.latex?E_m = \frac{B^2}{2 \mu_0}

Through the magnetic tension, the magnetic energy is converted to particle energy (acceleration).

So-called exploding double layers only make sense at the location where Alfvén, sort-of, observed them, and that was at the power brakers at a electric power station. When the connection is cut, there is a discharge through the air (like lightning) and there one can have the creation of a double layer and there is an "explosive"-like ending to the discharge, when the gap gets too larged.

Do you have an actual example? Or just theoretically on paper using incorrect assumptions?

Magnetic fields DO NOT accelerate charged particles, electric fields do, always have always will.

As well as mapping the magnetic structure of the Milky Way, the QUIJOTE data has also proved useful in other scenarios. The new data are also a unique tool for studying the anomalous microwave emission (AME), a type of emission first detected 25 years ago. AME is thought to be produced by the rotation of very small particles of dust in the interstellar medium, which tend to be oriented by the presence of the galactic magnetic field.

A dusty plasma!

"These new maps give a detailed description in a new frequency range, from 10 to 40 GHz, complementing those from space missions such as Planck and WMAP", comments José Alberto Rubiño, lead scientist of the QUIJOTE Collaboration. "We have characterized the synchrotron emission from our Galaxy with unprecedented accuracy. This radiation is the result of the emission by charged particles moving at velocities close to that of light within the Galactic magnetic field. These maps, the result of almost 9,000 hours of observation, are a unique tool for studying magnetism in the universe" he adds.

Magnetism in an electric universe.

What could cause this? Let’s read on...

The maps from QUIJOTE have also permitted the study of the microwave emission from the center of our Galaxy. Recently an excess of microwave emission has been detected from this region, whose origin is unknown, but whose origin could be connected to the decay processes of dark matter particles

The decay process from dark matter...

Mainstreams “battery”!

 

[Sol88]

Plasmoids and electric fields all the way.

Microwave imaging of quasi-periodic pulsations at flare current sheet

The sun, an ordinary star closest to us, is a place where flares with QPPs appear frequently. In the standard flare model, magnetic reconnection plays an important role in releasing energy from the coronal magnetic field, ejecting plasmoid and accelerating electrons.

The break up of current sheets into plasmoids is magnetic reconnection.

Better at accelerating particles than magnetic fields. The universe is electric, not magnetic.

 

[jonesdave116]

Plasmoids and electric fields all the way.

Microwave imaging of quasi-periodic pulsations at flare current sheet



The break up of current sheets into plasmoids is magnetic reconnection.

Better at accelerating particles than magnetic fields. The universe is electric, not magnetic.

Nope. Not even close. Learn to read.

 

[tusenfem]

Do you have an actual example? Or just theoretically on paper using incorrect assumptions?

Magnetic fields DO NOT accelerate charged particles, electric fields do, always have always will.

I guess there is no convincing you, but we already knew that.
Fortunately, mainstream does know about magnetic field tension and the effects that it produces, such as bursty bulk flows (BBFs) in the Earth's magnetotail, and the oscillations of the more dipolar field lines close to Earth that are created by the BBF, and which can, again, be observed in the Earth's aurora. But don't let that bother you.

And wow the only thing you take along from that phys.org blog is "dusty plasma" and "decay of dark matter". As we don't even know what dark matter is, you can easily delete that comment. It is most definitely NOT the mainstream "battery".

Then again, YOU still have not explained to us what the Sun's battery is in EU.

 

[Sol88]

Non-thermal electron acceleration from magnetically driven reconnection in a laboratory plasma


For reference.

 

[Sol88]

Nope. Not even close. Learn to read.

Poor por jd116, wrong again.

The angular dependence of the measured electron energy spectrum and the resulting accelerated energies, supported by particle-in-cell simulations, indicate that the mechanism of direct electric field acceleration by the out-of-plane reconnection electric field is at work

LINK


No tangled magentic fields needed it seems.

Electric fields seem important.

 

[jonesdave116]

Poor por jd116, wrong again.

LINK


No tangled magentic fields needed it seems.

Electric fields seem important.

Learn to understand what you read, yes? A primary school education will not equip you to deal with this subject. You don't know what you are talking about.

No tangled magentic fields needed it seems.

Looks at title of paper;

'Non-thermal electron acceleration from magnetically driven reconnection in a laboratory plasma.'

Dear me. The stupid hurts!

 

[jonesdave116]

Electric fields seem important.

No ****, Sherlock!

It is demonstrated that general magnetic reconnection with nonvanishing magnetic field crucially depends on properties of the parallel electric field.

A theoretical foundation of general magnetic reconnection
Hesse, M. & Schindler, K. (1988)
https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/JA093iA06p05559

The nonexistence of parallel electric fields was later challenged by Alfven, who suggested that auroral primary electrons may gain their energy from falling through a parallel potential drop above the ionosphere and described how parallel electric fields can 'cut' magnetic field lines. Alfven's idea was contrary to contemporary beliefs and was almost universally disregarded, but when in-situ measurements in space became possible, they brought the first indications that Alfven might be right. Since then, an overwhelming amount of empirical data have proven that magnetic field aligned electric fields exist and are of key importance in the physics of....... magnetic field reconnection [Mozer, 2005].

On the Concept of Moving Magnetic Field Lines
Falthammar, C-G. & Mozer, F. S. (2007)
https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2007EO150002

 

[Sol88]

High-accuracy observations of magnetoplasma structures at the magnetopause and in the tail of the terrestrial magnetosphere, as well as in planetary magnetospheres, show that electron current layers are usually found at sites where CSs become significantly thinned and ready for reconnection, or when magnetic reconnection is already underway (Nakamura et al. 2006; Panov et al. 2006; Runov et al. 2008; Grigorenko
et al. 2019; Zelenyi et al. 2020; Hubbert et al. 2021).

The thickness of such electron-dominated CSs may be as small as a few gyroradii of thermal electrons (Leonenko et al. 2021). Most of them are embedded in wider ion CSs, but single electron CSs can be observed too (Wang et al. 2018; Bandyopadhyay et al. 2021).

Meanwhile, studying such CSs is especially important because simulations show that electron CSs most probably carry the largest electric currents in the solar wind (Podesta 2017b).

Electron-to-ion Bulk Speed Ratio as a Parameter Reflecting the Occurrence

So re-connecting currents layers.

One may think that such objects have nothing to do with space weather and large-scale streams or flows that impact the terrestrial magnetosphere causing a chain of effects potentially dangerous for human be-ings and the technosphere.

Meanwhile, recent observational studies show that CSs are intensively produced (i) in the turbulent region downstream of shocks, (ii) in corotating/stream interaction regions (CIRs/SIRs), and (ii) in magnetic cavities formed either by the HCS and an approaching high-speed stream/flow or by interact-ing SIRs and interplanetary coronal mass ejections (ICMEs).

Such CSs are associated with so-called magnetic islands that represent 2-D sections of 3-D plasmoids/blobs/flux ropes originating from magnetic re-connection considerably intensified in turbulent plasmas and magnetic cavities compressed from at least one side (Khabarova et al. 2015, 2016; Khabarova & Zank, 2017; Adhikari et al. 2019; Malandraki et al. 2019).

Figure 1a-c shows typical situations in which mag-netic cavities filled with CSs and magnetic islands can be formed, and Figure 1a-c illustrates distortion of the HCS that leads to confinement of CSs and magnetic islands.

Got it yet jd116...