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Every cosmology predicts a cosmic microwave background, CMB blackbody radiation: those of QSSC, Halton Arp, I. E. Segal, Plasma cosmology, Nernst, MacMillan, Millikin, and so on.
All of these theories predict a nonzero thermal spectrum (since a universe with a zero absolute temperature is impossible; even in an empty universe there still resides ZPE, ZPF, etc., thus kinetic heat). The supposition that the CMB is a relic of a hot dense state has been problematic since the 1960's. The CMB is neverthless one of the mighty pillars used to support the standard model, (along with redshift z due to a time-dependent scale factor to the metric, and primordial nucleosynthesis of the light elements). My contention is that the case for this is not at all sound. Fred Hoyle had this to say: Quote:
The observed CMB, a perfect blackbody spectrum at a radiation temperature in intergalactic space of 2.726 K, is not a remnant of a hot creation event. The CMB was produced by stellar means (hydrogen burning stars, supernovae) over a time span of approximately 100 billion years, or more. (Burbidge, Hoyle, 1998, ApJ, 509 L1-L3) Coldcreation Last edited by Coldcreation; 31-December-2006 at 08:13 PM.. Reason: to add quotes |
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Here are a couple of sites I found. There are certainly many more. If anyone has a good link please post it here for a discussion of one of the major tenets, The Holly Grail of BB cosmology, the twilight's last gleaming, the dawn's early light, the bow wow of Fire-dog, the hiss of guano, an instant replay of the opening kickoff, and as S. Hawking wrote of the CMB; the handwriting of God...the greatest discovery of the century, if not of all time:
http://adsabs.harvard.edu/abs/2002astro.ph.11036N http://www.cambridge.org/catalogue/c...1858984&ss=exc Coldcreation Last edited by Coldcreation; 01-January-2007 at 08:07 PM.. Reason: punctuation |
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.But I was wondering why you use the time span of approximately 100 billion years, or more. It would appear that you are not only questioning the cause of the CMBR, but that you question the age of "our" expanding universe too. Do you have any argument for why you say "our" universe is 100 billion years old instead of 13.7 billion? |
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As far as the fine structure argument goes, the most obvious fine structure is the galactic contamination, followed by directional flow and axial orientation along the zodiac. None of these features are likely cosmic. Inferences that lesser anisotrophys - polarization, ect., are consistent with models require a lot of faith in a lot of parametric juggling.
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jwj It's a big universe out there...is it really unwinding, really burning out? |
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Everyone is entitled to his own opinion, but not his own facts. |
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Cool?
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jwj It's a big universe out there...is it really unwinding, really burning out? |
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Well, except that the apparent magnitude of the quasars they claim to be associated with the nearby galaxies is pretty dim, and the redshift of the 'associated' quasars is a fairly diverse set of redshifts out to z>4. By the time we start looking at galaxies with z>2 (where you *might* get a statistically significant difference in surrounding redshifts) the galaxy apparent magnitude is already dim, and the quasars would be invisible to our current equipment (if the H&B model is correct).
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Forming opinions as we speak |
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Coldcreation brought it up, so let's discuss it here instead of starting a new thread. Quote:
I say that for two reasons. 1) Because the CMBR has traditionally been considered the result of cooling from a 50 billion degree plus "implied" Big Bang event. The cooling was greatly assisted by exponential expansion at superluminal speeds in the first 10^-23 seconds, give or take a nanosecond . Not that there's anything wrong with that.Except: Where did the 50 billion degrees heat come from? How much matter would be required to cause that heat under pressure? Would the amount of matter required to produce that heat be equivalent to all the matter in our expanding universe; compressed to a tiny point of near infinite density? Maybe so. Under what circumstances could such pressure compress that much matter? How could all of that spring forth from nothing, nowhere, and when time didn't even exist? It couldn't. 2) This idea came up in my slow and cumbersome bottom up approach to cosmology. I am glad to see that a cold environment instead of a hot bang has gotten some interest outside of my musty basement. |
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If you do, my nomination for a place to start is lensed quasars (and remember, this challenge, to the ATM idea on the table, is quantitative). So unless there is someone willing to step forward and defend the H&B cosmology - quantitatively - let's have Cold Creation continue to present his ATM cosmology ideas, preferrably quantitatively, so other BAUT members can challenge them ... Apropos of which, how does your ATM idea differ from those of Hoyle and Burbidge, Cold Creation? |
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Pretty cool indeed, I mean the CMB. At only 2.7 K, that energy permeating the universe may be no more than the answer to Olber's Paradox. This is what shines down to us in Kelvin from all directions and from zillions of light years away, way below the visible or infrared, energies spewed out by zillions of stars and galaxies in all directions. CMB does not of necessity have to be a left over energy from a Big Bang 13.7 billion years ago; it could be left over energy from all star generated energy everywhere, regardless of whether or not the universe was born out of nothing 13.7 billions years ago, or ever. What's left over today is 2.7 Kelvin, in all directions of space. Why make a big deal out of it? Olber, and Hoyle, would have been proud, if so.
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Now if this isn’t a CMBR thread or if it is necessary out of protocol that Coldcreation stand up and take all questions I’ll just leave it at that. Otherwise my question stands: Quote:
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In current mainstream (big bang) cosmology, it is the cosmic infrared background which represents the light from the first generation of stars.
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The point of philosophy is to start with something so simple as not to seem worth stating, and to end with something so paradoxical that no one will believe it. -- Bertrand Russell |
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Please elaborate. What parameters do you talk about, and in what way are they "juggled"?
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Here is a simple way to view the CMBR in a static model. Think of the universe as a giant oven, with the stars being the heating elements. The stars keep burning and burning, but the universe doesn't heat up. Why? Because there are openings in the 'walls' of the oven allowing heat to escape. What are these openings? They are collectively just the cosmological redshift (to be understood as a non-expansion effect), which reduces the energy of each photon. The starlight interacts with all the matter in the oven, including the dust and gas of interstellar space. Given an infinite amount of time (only available in a static model), the oven will reach an equilibrium state characterized by a uniform blackbody temperature. Note that the CMBR photons are not just the redshifted photons themselves; that idea was shown to be wrong. It is just the normal background of a big old oven.
Last edited by ExpErdMann; 05-January-2007 at 07:24 PM.. Reason: fix typo |
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It seems to me that you have reached a state of thermal equilibrium for the background photons via the mechanism of handwaving. There are (at least) two reasons I think your explanation fails:1. The dust and gas and other matter in the universe are not uniformly distributed, so how can you achieve thermal equilibrium from interactions with unevenly distributed matter even if you have an infinite amount of time? 2. Stars, galaxies, and active galactic nuclei continue to exist, pumping out photos, and these objects are separated by vast stretches of near-empty space. If you or Coldcreation are claiming that the measured background radiation is a result of "background starlight", well, clearly the existing stars and other bright objects are not ALL in thermal equilibrium with each other. They are in obvious thermal isolation. Their contribution to your so-called background starlight is not going to produce a blackbody spectrum. But we do observe a near-perfect blackbody spectrum in the CMB. It's not coming from your (overly contrived) oven analogy. It's coming from the (much better analogy ) COSMIC SOUP that existed after the early hot universe cooled enough to allow nuclei to capture and retain electrons, allowing all the photon radiation to stream more freely without colliding with another particle. The soup was in near-perfect thermal equilibrium because just seconds before, each particle of soup was in direct and repeated contact with the surrounding particles of soup.How can one star be in thermal equilibrium with another star when they're not even close to being in contact with each other?
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My point is simple: All comologies predict a CMB. There can be no cosmology with an absolute zero value thermal spectrum, even in principle. As a zero value would result in the break-down of the third law of thermodynamics, GR and QM. Quote:
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It is a pitty the abuse of parameters (DM, DE, etc.) has had such importance in the outcome of maintream ideas on the CMB. Quote:
Good question!!! CC |
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Sorry to disagree with you. Quote:
I will come back with a complete answer shortly. |
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"There was a great debate going on at that time between the theory that the universe began with a big bang and the theory... that the universe had existed forever... Martin [Rees] and I were impressed by the observational evidence that was beginning to come in for the big bang from counts of radio sources and quasars. The controversy was finally settled by the discovery of a faint background of radiation that could only have been left over from the big bang." -- Stephen Hawking, 1997Do you really think that Stephen Hawking was unaware of your argument, which was first put forward and published in 1896? Do you really think that Stephen Hawking had no basis or reason to state that the background of radiation could only have been left over from the big bang?
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Well, replace "promised" with "said".
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BTW, you ignored my argument that ZPE (or ZPF) don't imply a non-zero temperature. Quote:
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(2) IIRC (several years have passed since I read a paper by Hoyle et al.), they (also) use quite a lot of (partly) ad hoc parameters. IIRC, they addressed the isotropy and the near-perfect black body spectrum (although their arguments didn't look very convincing to me), and they also attempted to address the power spectrum, but had to use several free parameters in order to do that (again, I read the relevant paper several years ago, and my memory is quite vague on that). And I don't remember them at all addressing the other points I mentioned.
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The universe is big. Really big. It may seem like a long way to the corner chemist, but compared to the universe, that's peanuts. (Douglas Adams, Hitchhiker's Guide to the Galaxy) |
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(1) there are no stars older than about 13 billion years in our galaxy, and (2) if one looks at very distant galaxies (several billion light years away), the stars there are even younger? (e.g., with made-up numbers in order to illustrate the point: in a galaxy whose light was emitted 6 billion years ago, we see only stars up to an age of about 7 billion years) (3) most very distant galaxies (see the Hubble (Ultra) Deep Fields) look very different from galaxies today ("immature"), quite irregular, with almost no structure (4) there is evidence that at earlier times, there was a radiation with a temperature consistent with the temperature of the CMBR predicted by the BBT for these earlier times? These are only a few pieces of evidence I can think of in the moment...
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The universe is big. Really big. It may seem like a long way to the corner chemist, but compared to the universe, that's peanuts. (Douglas Adams, Hitchhiker's Guide to the Galaxy) |
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The universe is big. Really big. It may seem like a long way to the corner chemist, but compared to the universe, that's peanuts. (Douglas Adams, Hitchhiker's Guide to the Galaxy) |
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Regarding the perfect thermal blackbody spectrum of the microwave background, from what I have read there were two blackbodies used in the instrument on COBE that measured this spectrum: an external blackbody "calibrator" and an internal blackbody "calibrator". The internal calibrator never removed but was an integral part of the interferometer system that showed a blackbody spectrum, in that half the photons entering the cone passed through this internal blackbody and its resulting signal was incorporated into the final "diagram". It seems to me this guarantees a blackbody spectrum. Can anyone explain why that would not be so?
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Thanks for the link. It's a good one. I had not seen that paper before. I noticed they mention Millikan, Nernst (as in my op) and your old pal Eddington. I just skimmed it but will read it through in depth later. CC Last edited by Coldcreation; 06-January-2007 at 09:24 PM.. Reason: spelling |
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But since you ask, I will mention that the QSSC universe has stars and galaxies spread out indefinitely and at a constant density (compatible with what is observed now) in accord with the perfect cosmological principle. And so it was possible within a timeframe of 100 Gyrs to attain the 2.7 K spectrum in perfect blackbody form. My back-of-the-envelope calculations show that in order to reach the 2.7 K 600-250 billion years is required (that incidentally is about the time hydrogen began to form and condense, leading quickly to protostars). Those numbers may strike the reader as enormous compared with the age of stars, say, located in globular clusters here in the Milky Way (15-18 Gyrs), or compared to the supposed age of the universe (13.7 Gyrs). Keep in mind, though, that an infinite spatiotemporal universe has all the time it needs. Put differently, it took an infinite amount of time for the temperature of the universe to reach 2.7 K. It goes without saying that the universe was colder in the past (the CMB tends to absolute zero temperature as time t tends to minus infinity). CC |
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