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Do physicists know what the expansion rate of the Universe was at the beginning of the matter dominated era?

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marked as duplicate by John Rennie, Danu, ACuriousMind♦, Kyle Kanos, Qmechanic♦ Nov 21 '14 at 16:19

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  • $\begingroup$ Are you familiar with standard computations in cosmology involving e.g. the Friedmann equations? $\endgroup$ – Danu Nov 20 '14 at 20:52
  • $\begingroup$ I am familiar with the Friedman equations, but not calculating with them. I was just curious if there was a consensus regarding what the expansion rate was at the radiation/matter transition and matter/dark energy transition. $\endgroup$ – Chris L. Nov 20 '14 at 21:02
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    $\begingroup$ many books on cosmology and/or GR (e.g. Carroll's book on GR) discuss these matters. Have a look around (outside Wikipedia ;) ). $\endgroup$ – Danu Nov 20 '14 at 21:20
  • $\begingroup$ When you ask for the expansion rate, are you asking for the Hubble constant? $\endgroup$ – Ben Crowell Nov 20 '14 at 22:19
  • $\begingroup$ @BenCrowell: yes, the Hubble constant $\endgroup$ – Chris L. Nov 20 '14 at 23:20