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Dark Energy Alternative

Physical Cosmology

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#1 Lev Schoonhoven

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Posted 27 November 2012 - 12:22 AM

Is anyone familiar with this man's work?

Recent research by Christos Tsagas, a cosmologist at Aristotle University of Thessaloniki in Greece, has argued that it's likely that the accelerated expansion of the universe is an illusion caused by the relative motion of us to the rest of the universe. The peer reviewed journal entry cites data showing that the 2.5 billion ly wide region of space we are inside of is moving very quickly relative to everything around it. If his theory is confirmed, then dark energy would not exist (but the "dark flow" still might). His research can be found in the journal, Physical Review

#2 Nigel Nunn

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Posted 27 November 2012 - 12:15 PM

Lev, thanks for the link. Even though Tsagas' and Kashlinsky's ideas ask too much of red-shift, they are helping to break down beliefs in a simple Big Bang universe. Recall that a "speed of light" is defined relative to a permittivity and permeability of space; the UB presents a cosmos where permittivity and permeability vary. If we take one more step, and allow the rate of flow of time to vary too, then the use of red-shift as indicator of (cosmological) distance becomes "not even wrong". And then we have:

"But this apparent speed of recession is not real; it results from numerous factors of error embracing angles of observation and other time-space distortions."


It's rare for the authors to point to a specific scientific assumption, and state that it is wrong. Even rarer that they should hint about why. My guess is that without a little help, our cosmology would head increasingly off course. (This might be why they also chose to say so much about ultimatons.) In this context it was fun to see a 2010 BBC documentary showing the entire college of cosmological researchers at the Perimeter Institute laugh at the old fashioned idea of a "Big Bang" universe. These guys will be writing the next set of text books about such things.

More interesting is Tsagas' work on gravito-magnetic effects: think of the mass of Paradise ringed by rotating ellipses of compact mass. If Chistos Tsagas should run the numbers for this, and plot the gravito-magnetic harmonics playing across pervaded space, I think he might come up with a theory about nested space levels, variable time, ...

great days to be in the cosmology business,
Nigel

#3 Lev Schoonhoven

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Posted 27 November 2012 - 05:11 PM

Hello Nigel- Thank you for your thoughts that mirror my own in regards to Tsagas' inference that in some ways evinces growing awareness of more complex motions than illustrated by the Big Bang. It does seem that a greater perspective is becoming visible, and I will appreciate the opportunity to examine the work sponsored by Perimeter Institute. - Lev




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