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Fraser
2006-Aug-30, 09:22 PM
Astronomers have discovered a rapidly spinning pulsar with a powerful magnetic field - called a magnetar - that's demonstrating some brand new tricks. Located about 10,000 light years from Earth, this magnetar is sending out powerful pulses of radio waves at regular intervals; normally magnetars are only seen in the X-ray spectrum. The discoverers think that the magnetic field around the star is twisting, causing huge electric currents to flow - these currents are generating the radio pulses.

Read the full blog entry (http://www.universetoday.com/2006/08/30/magnetar-crackles-with-radio-waves/)

sol88
2006-Aug-31, 01:10 AM
The discoverers think that the magnetic field around the star is twisting, causing huge electric currents to flow - these currents are generating the radio pulses. :hand:

And the thunderbolts interpretation is obviously way off then?


Plasma cosmologists, whose training is in electric circuits in plasma, do not ask their computers the questions asked by astronomers. Since 99% of the universe is composed of plasma, could the electrical behavior of plasma in the laboratory and in nearby space explain the observations of a magnetar? Plasma cosmologists know that magnetic fields don't stand alone, but are induced by electric currents. There must be an intense electric current feeding the magnetar, and this feeder current must be part of a circuit, since every electric circuit must close.

LINK (http://www.thunderbolts.info/tpod/2006/arch06/060301magnetar.htm)

I'd say "astronomers" have put the cart before the horse again, electric currents cause the magnetic field and not the other way round. :naughty:

But step by baby step, we get closer to the truth. :shhh:

I'd say before they rewrite all those text books on our "new" solar system (8 planets) they may just wait and include the true nature of the universe as well. No wonder they can not embrace these "new" ideas, look at what went down in just renaming Pluto :whistle:

All also propose the above thunderbolts article is not ATM as TM has a very limited idea on how these phenomena occur, but Plasma/electrical engineers may! :think:

Sol

Nereid
2006-Aug-31, 02:05 PM
sol88, you have been warned (http://www.bautforum.com/showthread.php?p=751174#post751174), more than once (http://www.bautforum.com/showthread.php?p=762573#post762573), that promotion of ATM ideas outside the ATM threads devoted to discussing them is a violation of BAUT rules (http://www.bautforum.com/showthread.php?t=32864).

Your post above is another violation of that same rule; your BAUT membership has thus come to an end.

John Mendenhall
2006-Aug-31, 05:18 PM
Wow, if we could modulate the radio pulses on a magnetar we could broadcast to most of the universe!

John Mendenhall
2006-Sep-01, 02:19 PM
I think we should start with reruns of Gilligan's Island. That'll impress the Andromedans.

iantresman
2006-Sep-01, 05:52 PM
sol88, you have been warned (http://www.bautforum.com/showthread.php?p=751174#post751174), more than once (http://www.bautforum.com/showthread.php?p=762573#post762573), that promotion of ATM ideas outside the ATM threads devoted to discussing them is a violation of BAUT rules (http://www.bautforum.com/showthread.php?t=32864).
Your post above is another violation of that same rule; your BAUT membership has thus come to an end.

That seems rather hash.

The idea that magnetars produce radio pulses from huge electric currents is described as "brand new tricks". By definition, it is not mainstream, and ALL discussion must be "ATM".

A search in the Smithsonian/NASA ADS database shows just one peer reviewed article on magnetars and electric currents [Ref (http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2002ApJ...574..332T&db_key=AST&d ata_type=HTML&format=&high=44f6f4fbe311979)], and three other papers at Arxiv.

That magnetars and electric currents have also been discussed on an "ATM" Web site back in Feb 2005, does not seem to me to be entirely irrelevent.

Questions such as whether magnetic fields cause electric currents or vice versa, also seem quite legimate, in an attempt to understand what is going on.

Regards,
Ian Tresman

iantresman
2006-Sep-01, 06:03 PM
An astro-ph/0605429 paper on the subect by the same research team, appears to be available online:

Transient pulsed radio emission from a magnetar (http://arxiv.org/abs/astro-ph/0605429) (May 2006)
Fernando Camilo (1), Scott Ransom (2), Jules Halpern (1), John Reynolds (3), David Helfand (1), Neil Zimmerman (1), John Sarkissian (3) ((1) Columbia, (2) NRAO, (3) ATNF)

Regards,
Ian Tresman

Nereid
2006-Sep-02, 02:18 AM
That seems rather hash.

The idea that magnetars produce radio pulses from huge electric currents is described as "brand new tricks". By definition, it is not mainstream, and ALL discussion must be "ATM".No issue here.
A search in the Smithsonian/NASA ADS database shows just one peer reviewed article on magnetars and electric currents [Ref (http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2002ApJ...574..332T&db_key=AST&d ata_type=HTML&format=&high=44f6f4fbe311979)], and three other papers at Arxiv.Nor here.
That magnetars and electric currents have also been discussed on an "ATM" Web site back in Feb 2005, does not seem to me to be entirely irrelevent.Nor here.
Questions such as whether magnetic fields cause electric currents or vice versa, also seem quite legimate, in an attempt to understand what is going on.Indeed they are.

However, what did sol88 actually write? Let's see:
And the thunderbolts interpretation is obviously way off then?
[quote, followed by a link]And are there any references, to any papers, or even any calculations, or even any numbers - wrt magentars, magnetic fields, neutron stars, electric fields, etc - anywhere in the material cited? IOW, anything, no matter how slim, that we could call (astro)physics in there?

Or is it (http://www.bautforum.com/showthread.php?t=32864) "promotion of your [ATM] theories and ideas" outside the ATM section?

iantresman
2006-Sep-02, 08:48 AM
And are there any references, to any papers, or even any calculations, or even any numbers - wrt magentars, magnetic fields, neutron stars, electric fields, etc - anywhere in the material cited? IOW, anything, no matter how slim, that we could call (astro)physics in there?

And did the press release posted by Frasier contain any references or calculations? Nope, just a promise of a forthcoming paper in Nature. Aside from that, the original press release was a PROMOTION of someon else's theory.

And it was me who went off and found a preprint and posted it here... and if you had of asked Sol88, or myself, we would have found some papers supporting the Thunderbolts write-up.

Consequently, I still think your actions were a little hasty.

Regards,
Ian Tresman

RUF
2006-Sep-04, 04:35 AM
To change the subject....
I'm afraid I don't understand. I thought all pulsars emmitted radio waves. Isn't that how they were discovered? So now we have pulsars with huge magnetic fields called Magnetars, but they can only be seen in infrared? How is it that they are still considered pulsars.

This ??? may seem naive, but if a member could help me out it would be appriciated.

John Mendenhall
2006-Sep-05, 02:50 PM
The magnetic fields are originally the much weaker fields associated with the star prior to collapse. When the star collapses, the magnetic fields are carried along as imbedded fields within the stellar material, and as a result the magnetic field is greatly compressed, along with everything else, and the field bcomes much more intense. Occasionally, as in this case, the original star prior to collapse already had an intense magnetic field; this results in a super magnetic field (magnetar) after collapse of the star. As to the radio emissions, who knows? Twisting and release of the magnetic field implies motion of the neutron star material (remember, the magnetic field is imbedded in the material), and as I recall, the current neutron star models are for fairly rigid objects. Maybe these are hypothetical free quark stars?