Is there a maximum observable redshift in an open universe?
Abstract
An estimate of the maximum observable redshift is obtained using only t0 approximately equal to (14+- 3)109years, H0 approximately equal to 65 +- 10Km-1Mpc-1(t0H0 approximately equal to 0.91 +- 0.08/0.18) assuming Λapproximately equal to 0. The resulting maximum redshift z+ approximately equal to 10 appears to give a reasonable upper limit to the highest actually observed redshifts. Some implications are discussed.
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