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Observational Evidence Favors a Static Universe - Journal of ...

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characteristics would constitute serious evidence against CC.<br />

The simple BB evolution concept is complicated by galactic collisions and<br />

mergers (Struck, 1999; Blanton & Moustakas, 2009). In many cases these can<br />

produce new large star-forming regions. Clearly the influx <strong>of</strong> a large number<br />

<strong>of</strong> new stars will alter the characteristics <strong>of</strong> the galaxy. It is likely that a sig-<br />

nificant number <strong>of</strong> galaxies have been reformed by collisions and mergers and<br />

consequently the average evolution may be very little or at least somewhat re-<br />

duced over the simple model.<br />

4.1 Tolman surface brightness<br />

This test, suggested by Tolman (1934), relies on the observation that the sur-<br />

face brightness <strong>of</strong> objects does not depend on the geometry <strong>of</strong> the universe.<br />

Although it is obviously true for Euclidean geometry it is also true for non-<br />

Euclidean geometries. For a uniform source, the quantity <strong>of</strong> light received per<br />

unit angular area is independent <strong>of</strong> distance. However, the quantity <strong>of</strong> light is<br />

also sensitive to non-geometric effects, which make it an excellent test to dis-<br />

tinguish between cosmologies. For expanding universe cosmologies the surface<br />

brightness is predicted to vary as (1 + z) −4 , where one factor <strong>of</strong> (1 + z) comes<br />

from the decrease in energy <strong>of</strong> each photon due to the redshift, another factor<br />

comes from the decrease in rate <strong>of</strong> their arrival and two factors come from the<br />

apparent decrease in area due to aberration. This aberration is simply the rate<br />

<strong>of</strong> change <strong>of</strong> area for a fixed solid angle with redshift. In a static, tired-light,<br />

cosmology (such as CC) only the first factor is present. Thus an appropriate<br />

test for Tolman surface brightness is the value <strong>of</strong> this exponent.<br />

16

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