The
Standard Dust Models (Λ=0)
•Distance
Measures as a function of redshift
–Then to find the proper
distance D, recall from chapter
5 that D = R
sin(r/R) where script R is given by eq.
7-19. For an exercise you could derive the general
expression:
–Notice what happens for an empty universe. Deriving this was a closed book exam question I had in grad school
(prof assumed we had the
curiosity to check this for ourselves).
