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HST ultra deep field and angular diameter

  1. Aug 13, 2010 #1


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    Looking at the ultra deep field view from the Hubble as shown here:


    Just by observing this picture is not evident the effect in the apparent angular size expected from redshifts z of about 1.65.(According to the L-CDM model the angular size should start increasing from z about 1.6) since we are supposed to be looking to galaxies that reach redshifts as high as a z of 7-8 I guess the smallest objects that are observed with the highest redshifts we actually see with an apparent size much bigger than they really have and therefore they really must be tiny galaxies in reality, or am I missing something here?

    Last edited: Aug 13, 2010
  2. jcsd
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