I've been reading reading an older article on ISW (integrated Sache-wolfe effect). One line struck me as odd in the paper.
http://ift.tt/1fjBFuW
on page two the line " In particular, we know that during the matter dominated era the gravitational potential stays constant "
I can understand that during the matter dominant era, the cosmological constant effect is greatly reduced. However wouldn't there be an ISW potential due to dynamics of the matter dominant era?
http://ift.tt/1fjBFuW
on page two the line " In particular, we know that during the matter dominated era the gravitational potential stays constant "
I can understand that during the matter dominant era, the cosmological constant effect is greatly reduced. However wouldn't there be an ISW potential due to dynamics of the matter dominant era?
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