New evidence, based on detailed measurements of the size and brightness of hundreds of galaxies, using The Tolman test for surface brightness, indicates that the Universe is not expanding after all. I’m betting that somewhere, some activist is trying to figure out an angle to blame climate change. (h/t to Roy Spencer)
From Sci-News.com: Universe is Not Expanding After All, Scientists Say
In their study, the scientists tested one of the striking predictions of the Big Bang theory – that ordinary geometry does not work at great distances.
In the space around us, on Earth, in the Solar System and our Milky Way Galaxy, as similar objects get farther away, they look fainter and smaller. Their surface brightness, that is the brightness per unit area, remains constant.
In contrast, the Big Bang theory tells us that in an expanding Universe objects actually should appear fainter but bigger. Thus in this theory, the surface brightness decreases with the distance. In addition, the light is stretched as the Universe expanded, further dimming the light.
So in an expanding Universe the most distant galaxies should have hundreds of times dimmer surface brightness than similar nearby galaxies, making them actually undetectable with present-day telescopes.
But that is not what observations show, as demonstrated by this new study published in the International Journal of Modern Physics D.
The scientists carefully compared the size and brightness of about a thousand nearby and extremely distant galaxies. They chose the most luminous spiral galaxies for comparisons, matching the average luminosity of the near and far samples.
Contrary to the prediction of the Big Bang theory, they found that the surface brightnesses of the near and far galaxies are identical.
Full story: http://www.sci-news.com/astronomy/science-universe-not-expanding-01940.html
Physicist Luboš Motl isn’t impressed:
It is quite a bold claim but not shocking for those who have the impression based on the experience that these journals published by World Scientific are not exactly prestigious – or credible, for that matter. The sloppy design of the journal website and the absence of any TEX in the paper doesn’t increase its attractiveness. The latter disadvantage strengthens your suspicion that the authors write these things because they don’t want to learn the Riemannian geometry, just like they don’t want to learn TEX or anything that requires their brain to work, for that matter.
The point of the paper is that the expanding Universe of modern cosmology should be abandoned because there is a simpler model one may adopt, namely the static, Euclidean universe. Their claim or their argument is that this schookid-friendly assumption is completely compatible with the observations. In particular, it is compatible with the observations of the UV surface brightness of galaxies.
Read more of what he has to say here: http://motls.blogspot.com/2014/05/claims-universe-is-not-expanding.html#more
The cartoon I published Friday might be prescient.
UV surface brightness of galaxies from the local universe to z ~ 5
Int. J. Mod. Phys. D DOI: 10.1142/S0218271814500588
Eric J. Lerner, Lawrenceville Plasma Physics, Inc., USA Renato Falomo, INAF–Osservatorio Astronomico di Padova, Italy Riccardo Scarpa, Instituto de Astrofısica de Canarias, Spain
The Tolman test for surface brightness (SB) dimming was originally proposed as a test for the expansion of the universe. The test, which is independent of the details of the assumed cosmology, is based on comparisons of the SB of identical objects at different cosmological distances. Claims have been made that the Tolman test provides compelling evidence against a static model for the universe. In this paper we reconsider this subject by adopting a static Euclidean universe (SEU) with a linear Hubble relation at all z (which is not the standard Einstein–de Sitter model), resulting in a relation between flux and luminosity that is virtually indistinguishable from the one used for ΛCDM models. Based on the analysis of the UV SB of luminous disk galaxies from HUDF and GALEX datasets, reaching from the local universe to z ~ 5, we show that the SB remains constant as expected in a static universe.
A re-analysis of previously published data used for the Tolman test at lower redshift, when treated within the same framework, confirms the results of the present analysis by extending our claim to elliptical galaxies. We conclude that available observations of galactic SB are consistent with a SEU model.
We do not claim that the consistency of the adopted model with SB data is sufficient by itself to confirm what would be a radical transformation in our understanding of the cosmos. However, we believe this result is more than sufficient reason to examine this combination of hypotheses further.