Talk:Magnetospheric eternally collapsing object
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[edit] Was this article lifted?
This article is remarkably similiar to the recent NewScientistSpace.com news article at this address:
http://www.newscientistspace.com/article.ns?id=dn9620&feedId=online-news_rss20
It seems pretty clear that one is a copy of the other.
[edit] what this article must address
What is a highly redshifted rotating magnetic dipole? -- CannibalSmith 12:06 GMT 28 July 2006
- Well it's not a monopole (only north or only south magnetic) just a plain magnet.
- And gues it turns so fast it's starting to redshift (i'm not sure how fast an object can rotate, but i'll gues it's all a in single quantum state so altough it's huge it might interact as if it was one particle. (so how fast can a single particle spin?)
- If it's not acting like a single particle, then i think the fastest rotation is the speed of light, redshift would then mean close to the speed of light. anonymous
[edit] How exactly do magnetic fields affect neutral particles?
The article's description of how matter is prevented from falling into a MECO is incomplete. A very strong magnetic field may affect charged particles, or neutral particles (like neutrons) that are composites of charged particles, but uncharged fundamental particles (like neutrinos) wouldn't be flung away in this manner. These are produced in copious quantity by stellar collapse that reaches the neutron star stage or farther, so their effects won't be negligible. --Christopher Thomas 19:14, 29 July 2006 (UTC)
REPLY TO ABOVE QUESTION BY DARRYL LEITER (CO-DISCOVERER OF THE MECO WITH STANLEY ROBERTSON:
THE HIGHLY REDSHIFTED MECO SURFACE IS DYNAMICALLY BALANCED OUTSIDE OF ITS SCHWARZSCHILD RADIUS BY THE INTRINSICALLY MAGNETIC, SYNCHROTRON RADIATION GENERATED, COMPTON SCATTERING FORCE WHICH ACTS ON THE PAIR DOMINATED PLASMA WITHIN THE MECO SURFACE. FOR THE CASE OF NEUTRINOS THE PHOTON->NEUTRINO SCATTERING FORCE IS WEAKER THAN THE PHOTON->ELECTRON-POSITRON FORCE BUT THIS WEAKER FORCE WOULD ALSO ACT TO EVENTUALLY REPEL THE NEUTRINOS EVEN IF THEY WERE ABLE TO PENETRATE THE MECO PHYSICAL SURFACE BALANCED OUTSIDE ITS SCHWARZSCHILD RADIUS. HENCE IT IS NOT THE INTRINSIC MECO MAGNETIC FIELD ALONE WHICH CREATES THE HIGHLY REDSHIFTED, EDDINGTON LIMITED MECO SURFACE. RATHER IT IS THE EDDINGTON LIMITED PHOTON SYNCHROTRON LUMINOSITY GENERATED BY THE MAGNETIC FIELD WHICH DOES THE JOB VIA THE PHOTON-PARTICLE INTERACTIONS WHICH COME INTO PLAY.
[edit] History?
Are there any research papers or articles about MECO theory we could quote or link here? It seems that all coverage on this topic is from the very recent news articles about it. I understand that one of Dr. Hawking's main bets is the existence (or non-existence) of black holes. Surely there's some sort of long and grandiose correspondence documenting this? :) I dunno, just seems like this only recently popped up claiming a long history, but this page is only concerned. --Addama 14:35, 31 July 2006 (UTC)
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- I know what Addama means about this suddenly popping up...it's that New Scientist article which has sparked it all off. Although I've stumbled across one of Mitra's papers in my meanderings through the arXiv, last year, I think. I don't think I agree with him. But anyway, let us see how all this sudden flurry pans out...
- Incidentally, has anyone noticed the name in the article history? At least, and for this he is to be commended, he declared in the article itself that he had been editing it. Byrgenwulf 20:19, 2 August 2006 (UTC)
[edit] Cleanup strategy
At the moment, this reads like a cross between a description of a MECO, combined with the story of their discovery/theoretical development, combined with a comparison (somewhat onesided) with black holes. All mixed up, higgledy piggledy.
This needs to be changed so that the development of the concept goes in one section, a description of it in the next (without reference to black holes, preferably), and finally a section can compare the two concepts.
I am not particularly interested in doing it, but shall try to fix a few things every now and again. I have also removed the "request for expansion", for now, because the article is positively massive, and there's an IP that comes every night and deposits vast reams of content, which, while undoubtedly well-intentioned and informative, is neither formatted nor structured, and it just keeps getting more and more. Byrgenwulf 15:50, 3 August 2006 (UTC)
[edit] removed external links?
The removal of external links is a bit disappointing, as they contained news stories that talked about MECOs. And there's a comment here about an older version of the article being directly lifted from one of them (or vice versa). They are also easier to read that the mess on the article page that needs cleanup. 70.51.9.213 05:15, 6 August 2006 (UTC)
[edit] External links
- Q0957+561: Die historisch erste Linse mit Quasar (Universität zu Köln)
- Research Sheds New Light On Quasars (SpaceDaily) Jul 26, 2006
- Mysterious quasar casts doubt on black holes - New Scientist
- Observations Supporting the Existence of an Intrinsic Magnetic Moment Inside the Central Compact Object Within the Quasar Q0957+561 Rudolph E. Schild, Darryl J. Leiter, Stanley L. Robertson (arXiv) Wed, 25 May 2005 17:37:09 GMT
[edit] Needs an introduction?
As a non-physicist reading this, I'm finding it almost impossible to get a general overview of what a MECO is. Is it possible for somebody to write an introductory paragraph, giving a non-technical summary? [and before you ask, I'm not in the least bit capable of writing one myself] Danohuiginn 23:56, 12 November 2006 (UTC)
- I'm a non-physicist too (chemist) so I added a small introduction to the opening paragraph. I hope my less than perfect grasp of physics didn't introduce any incorrections, so someone please check it. 213.22.31.12 21:45, 1 March 2007 (UTC)
[edit] Needs clarification as non-mainstream theory
This article reads a whole lot like a "crackpot" article. For example:
- The existence of ECOs/MECOs is certainly not widely accepted at present. But this is not necessarily because of any theoretical inconsistency ...
That's a POV, OR approach to the topic. If it's not widely accepted, it is not appropriate for Wikipedia to speculate *why not* ... especially if the answer is the especially crackpot-y "because the old paradigm is deeply ingrained."
I would make two observations on the reference list. First of all, it's deeply circular. Dr. Mitra's papers, as far as NASA ADS knows, have been cited primarily by Dr. Mitra himself; only his Phys Rev D. article has refereed citations by anyone else, and those citations are both of the form, "It has been established that gravitational collapse is a dissipative process (several citations lumped together) ... " This can hardly be taken to be an endorsement of Mitra's work. One of Robertson's papers recieves a few non-self citations, only one of which can be called an endorsement of (or even a mention of) this model.
This article needs to be rewritten to the tune of "This is a fairly obscure model which has received some support in the literature" rather than "this is the unique and obvious perfect super-solution to gravitational collapse." The article can be substantially shortened; it shouldn't be presenting a more-compelling case for MECOs than is supported by the *refereed* and *cited* parts of the literature. Bm gub 00:26, 2 October 2007 (UTC)
- It also had some other signs of crankishness, including Unnecessary Capitalization (UC) and Unecessary Abbreviation (UA), as well as the occasional "so-called" thrown in for good measure. I've removed those but I'm not a physicist by any stripe so I'm not able to address the deeper issues this article has. Bryan Derksen (talk) 22:59, 6 January 2008 (UTC)