Are pulsars giant permanent magnets?

Nov 22, 2011 By Ray Sanders
The Vela Pulsar contains a neutron star - the remains of a supernova explosion. Seen in this X-ray image from the Chandra observatory is a jet emitted from one of the neutron star's rotational poles. Credit: NASA/CXC/PSU/G.Pavlov et al.

Some of the most bizarre phenomenon in the universe are neutron stars. Very few things in our universe can rival the density in these remnants of supernova explosions. Neutron stars emit intense radiation from their magnetic poles, and when a neutron star is aligned such that these “beams” of radiation point in Earth’s direction, we can detect the pulses, and refer to said neutron star as a pulsar.

What has been a mystery so far, is how exactly the magnetic fields of pulsars form and behave. Researchers had believed that the magnetic fields form from the rotation of charged particles, and as such should align with the rotational axis of the neutron star. Based on observational data, researchers know this is not the case.

Seeking to unravel this mystery, Johan Hansson and Anna Ponga (Lulea University of Technology, Sweden) have written a paper which outlines a new theory on how the magnetic fields of neutron stars form. Hansson and Ponga theorize that not only can the movement of charged particles form a , but also the alignment of the magnetic fields of components that make up the neutron star – similar to the process of forming ferromagnets.

Getting into the physics of Hansson and Ponga’s paper, they suggest that when a neutron star forms, neutron magnetic moments become aligned. The alignment is thought to occur due to it being the lowest energy configuration of the nuclear forces. Basically, once the alignment occurs, the magnetic field of a neutron star is locked in place. This phenomenon essentially makes a neutron star into a giant permanent magnet, something Hansson and Ponga call a “neutromagnet”.

Similar to it’s smaller permanent magnet cousins, a neutromagnet would be extremely stable. The magnetic field of a neutromagnet is thought to align with the original magnetic field of the “parent” star, which appears to act as a catalyst. What is even more interesting is that the original magnetic field isn’t required to be in the same direction as the spin axis.

One more interesting fact is that with all neutron stars having nearly the same mass, Hansson and Ponga can calculate the strength of the magnetic fields the neutromagnets should generate. Based on their calculations, the strength is about 1012 Tesla’s – almost exactly the observed value detected around the most intense magnetic fields around neutron stars. The team’s calculations appear to solve several unsolved problems regarding pulsars.

Hansson and Ponga’s theory is simple to test – since they state the magnetic field strength of cannot exceed 1012 Tesla’s. If a neutron star were to be discovered with a stronger magnetic field than 1012 Tesla’s, the team’s theory would be proven wrong.

Due to the Pauli exclusion principle possibly excluding neutrons aligning in the manner outlined in Hansson and Ponga’s paper, there are some questions regarding the team’s theory. Hansson and Ponga point to experiments that have been performed which suggest that nuclear spins can become ordered, like ferromagnets, stating: “One should remember that the nuclear physics at these extreme circumstances and densities is not known a priori, so several unexpected properties might apply,”

While Hansson and Ponga readily agree their theories are purely speculative, they feel their theory is worth pursuing in more detail.

Explore further: Evidence for supernovas near Earth

More information: If you’d like to learn more, you can read the full scientific paper by Hansson & Pong at: arxiv.org/pdf/1111.3434v1

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Vendicar_Decarian
0.9 / 5 (47) Nov 22, 2011
Wow, that neutron star looks just like the one that is inside our sun. You know.. the neutron star made from Iron.

Isn't it sad that Astronomers will never see the stars and will never understand that the sun has a magnetic field of 10**12 Tesla, even though nothing close is observed.

Perhaps it's lower because of Newtron/Newtron repulsion.

Where is OmaTard to clear all this up?
rawa1
1.3 / 5 (13) Nov 22, 2011
Many pulsars are not only permanent magnets, but they're even behaving like the magnetic monopole and they exhibit jet suppression in similar way, like the guy above pictured.
Vendicar_Decarian
1 / 5 (48) Nov 22, 2011
Yes, absolutely. Neutron starts are magnetic monopoles, just look at the tail on the one in the picture. It is just like a the tadmonopoles that grow in ponds and turn into frogs later in the summer.

Silly scentisimsists.
omatumr
1.8 / 5 (21) Nov 22, 2011
The magnetic dipole of the neutron is the key.

Magnetic fields from the Sun's pulsar core or the superconducting iron mantle around it protrude through the photosphere as cycles of sunspots.

These solar cycles are induced by solar inertial motion as orbiting planets jerk the Sun's dense core around inside the photosphere - a glowing sphere of waste (91% H and 9% He).

1. Suns motion and sunspots, Astron. J. 70, 193-200 (1965)

2. "Super-fluidity in the solar interior: Implications for solar eruptions and climate", J Fusion Energy 21, 193-198 (2002) http://arxiv.org/.../0501441

3. "Earth's heat source - The Sun", Energy & Environment 20, 131-144 (2009) http://arxiv.org/pdf/0905.0704

With kind regards,
Oliver K. Manuel
http://myprofile....anuelo09
rubberman
4 / 5 (12) Nov 22, 2011
Oliver.....seriously, if you are this lonely, buy a dog or a fish or something. Posting in the hopes engagement from a bunch of people who know you're not all there is too sad for words.....you're like a kid who purposfully engages a bully on the playground because none of the normal children will interact with you.
The article is fascinating, I hope the authors can find a way to test their theory.
Vendicar_Decarian
0.9 / 5 (44) Nov 22, 2011
Don't tell OmaTard to buy a dog. Do you really think he can be trusted around one?

Not good for the dog to be parented by the mentally ill.

A fish is only a slightly better idea.

Maybe he can talk to the carrots in his refrigerator. Nice, well adjusted, happy carrots.
Callippo
1.4 / 5 (11) Nov 22, 2011
One more interesting fact is that with all neutron stars having nearly the same mass
In dense aether theory it's because neutron stars are formed mostly with particles, the energy of which is well defined too, i.e. quantized. These objects represent the middle of observable dimensional and energy density scale. http://www.aether...cale.gif
jsdarkdestruction
3 / 5 (6) Nov 22, 2011
Indeed, one does have to question oliver being allowed to care for another creature that depends on him and cant fight back or anything. in the past such situations have gone horribley wrong with oliver.

"Dr. Oliver Manuel Sr., Professor Emeritus of Chemistry and former chair of the UMR Chemistry Department, was arrested Tuesday, May 30 in his office at UMR for two felony counts of rape, four counts of sodomy, and one count of attempted sodomy. The crimes allegedly occurred from 1967 to 1990 at various locations in Phelps County. Some of the acts allegedly occurred on University property."

http://mominer.ms...hildren/
Vendicar_Decarian
0.5 / 5 (39) Nov 22, 2011
"In dense aether theory it's because neutron stars are formed mostly with particles" - Callippo

Ya, and in standard astronomy they are composed of particles.

Completely different.

But wait. I'm composed of particles. So I must be the same size a s neutron star.

No wonder I have such a magnetic monopole personality.
Vendicar_Decarian
0.5 / 5 (39) Nov 23, 2011
"The allegations that are being prosecuted came from four of Manuels children. Sharon Manuel, 50, his adopted daughter, alleged the abuse took place from the time she was 6 to 14 years old. Oliver Manuel Jr., 43, his biological son, alleged that the abuse took place from the time he was 11 to 17 years old. James Rosenburg, 34, his stepson, alleged the abuse took place from the time he was 7 to 17 years old. Sirikka Llohoefner, 27, his biological daughter alleged the abuse took place from the time she was 5 to 11 years old. " - charges against OmaTard.

People will never understand that OmaTard was just trying to find the Iron Neturon Star that all children keep up their backsides.

Anda
4.4 / 5 (7) Nov 23, 2011
Dense Neutron Aether Repulsion Theory strikes back!
rawa1
1 / 5 (5) Nov 25, 2011
Many pulsars are not only permanent magnets, but they're even behaving like the magnetic monopole and they exhibit jet suppression in similar way, like the guy above pictured. You can imagine it like black hole with one pole of magnet covered beneath its event horizon into the inverse space-time. It's a result of heavy CP symmetry violation.

http://www.aether...ole2.gif

When the mass density of pulsar increases even more, even the second jet is suppressed and the pulsar changes itself into black hole in general relativity sense.
rawa1
1.5 / 5 (8) Nov 25, 2011
I presume, most of pulsars are gradually losing their mass and momentum with evaporation of matter through jets and the number of jets decreases gradually. When pulsar will lose all its excessive mass, it will change into symmetric black hole with no jets.
http://www.aether...hole.avi
Therefore magnetic monopole can be interpreted like temporal intermediate state between antisymmetric white hole and symmetric black hole stage.
p1ll
1.8 / 5 (5) Nov 28, 2011
I just have to say, this is to you, Mr. VendiTard DecariTard.

You are a complete ass. You're constant name calling and use of "Tard" is irritating, infantile, and you bring nothing to any discussion at physorg.

I did a little google search on your retarded name.
VendTard's REAL NAME is Scott Nudds (ROFL nice last name douche bag!!!)

I found all sorts of interesting things about you. I invite all of you to read about who this A-hole is. interesting stuff.
Scottard, I guarantee you have NO woman in your life. and if there is one, I'm sorry she has to handle the busines end of your shriveled loins. HAHAHA NUDDS!! What a F**king awsome last name you horrid little man.

So you keep on calling peoplke Tards, go right ahead.

Meanwhile, everyone check out what google says about our illustrious scientist Scott Nudds (ROFL too funny!)

https://www.googl...Vendicar Decarian

you are an ass, VendiFag DecariNudds

Lets see a pic eh ? C'mon VendTard.
p1ll
2 / 5 (4) Nov 28, 2011
Apparently VendiFag had to be disciplined elsewhere:

Attn: Vendicar Decarian

Dear Sir or Madam,

We value your posts but could you do us the courtesy of not including aus.tv
in your list of Newsgroups for posts not relating to Australian television.

The number of off-topic crossposts is slowly killing our newsgroup and as such
there will soon be nobody left in aus.tv to receive your posts.

The only members of aus.tv who have an interest in political posts are already
subscribed to aus.politics where they are willing to receive your posts.

Your willingness to assist in our request will be greatly appreciated and your
maturity to do so will see you cast as a respectable and responsible poster.

With due regards,

Group Moderator - aus.tv

Come on VendiTard, you gonna call me p1LLTard? That would be sooo clever Mr. Nudds (ROFL I laugh everytime I write it!)
p1ll
2 / 5 (4) Nov 28, 2011
oooh, so very interesting!
http://groups.goo...20?pli=1

you are a famous troll I see! I will expose you, you pathetic louse.

more on Scott Nudds a.k.a. VendTard DecariTard:

"I bring order to chaos" ~ Scott Nudds

WTF??? are you for real scotty boy?

Cmmon Nuddsies, you pissed off the wrong person tonight at physorg.
Ethelred
4 / 5 (4) Nov 28, 2011
Cmmon Nuddsies, you pissed off the wrong person tonight at physorg.
While I can understand that VD has irritated the heck of you and everyone else here I don't think you count as the 'wrong person'. This set of rants about His Ludicrousness are your first posts in two and half years.

Ethelred
Shelgeyr
1 / 5 (3) Nov 28, 2011
...neutron magnetic moments become aligned...


I find it frustrating that "they" once again use phrases like a magnetic field being locked in place, while ignoring the fact that even in permanent magnets such fields are created by ongoing electric currents (which are the only things that can create magnetic fields).

However, even setting aside my fringe opinion (hey - I'm calling it what it is!) that there is actually no such thing as a neutron star, I'm still pleased by the quote above because it is but a hair's breath away from focusing on "charge posturing", which is logically consistent, and which must exist as a real behavior in order for neutron magnetic moments to become aligned.

And once "charge posturing" becomes studied and understood, the floodgates of real astronomical science at least have a chance of opening, and washing all the rest of this invented fantasy dreck away.